High Quality Butyl Machine

On August 26th, 2025, a high-performance Automatic Glass Laminating Machine with a production size of 2440*3660 was successfully installed and put into operation for one of our valued clients. The machine was commissioned to enhance the production efficiency and quality of laminated glass products, particularly focusing on the integration and clarity achieved with EVA film.

To rigorously verify the performance and output quality of the new system, the customer conducted a unique quality assurance test: they deliberately broke a laminated glass sample produced by the machine to inspect the internal structure, bonding strength, and overall uniformity. The results were exceptional. The laminated glass exhibited perfect adhesion, with no bubbles, delamination, or optical distortions. The EVA film used in the process proved to be highly durable, with excellent optical clarity and strong interlayer bonding, ensuring both safety and aesthetic quality.

The client’s boss was thoroughly impressed with the performance of the laminating machine and the superior quality of the EVA film. He emphasized that the equipment not only met but exceeded their expectations in terms of reliability, finish, and consistency. The test confirmed that the machine delivers high-precision laminating under exacting standards, making it an invaluable asset to their production line.

This successful installation and validation reflect our commitment to providing advanced laminating solutions and high-quality materials that build trust and deliver tangible results. We look forward to continuing our partnership and supporting their growth with innovative technology and reliable performance.

The PVC Window Frame Corner Cleaning Machine is a specialized piece of equipment engineered to address the critical post-welding cleaning needs in PVC window fabrication. Designed to remove welding slag, residual debris, and uneven seams from the 90° corners of welded PVC window frames, it eliminates the flaws caused by manual cleaning methods and ensures consistent, high-precision finishing of both inner and outer corners, as well as rubber grooves and slide rail seams.Classified primarily into semi-automatic and CNC (Computer Numerical Control) models, this machine caters to diverse production scales—from small-scale workshops to large, automated manufacturing lines. Semi-automatic versions feature basic tool configurations and manual parameter adjustment, offering cost-effectiveness and ease of operation for standard profile processing. CNC models, by contrast, integrate advanced multi-axis control systems, graphical user interfaces, and programmable tool paths, enabling simultaneous cleaning of multiple corner areas, adaptive compensation for welding irregularities, and rapid switching between custom profile specifications.

Manual: Aluminium Bar Bending Machine

1. Foreword

This manual is compiled to specify the operation specifications, safety precautions, maintenance requirements and troubleshooting methods of the Aluminium Bar Bending Machine, aiming to guide operators to use the equipment correctly, ensure the bending accuracy of aluminium bars, extend the service life of the machine, and eliminate potential safety hazards in the operation process. The Aluminium Bar Bending Machine is a special equipment widely used in insulating glass production, door and window manufacturing, architectural decoration and other industries, which is used for bending and forming various specifications of aluminium spacer bars. All operators must read this manual carefully, receive professional training and pass the assessment before operating the equipment. Any operation in violation of this manual may lead to equipment damage, product quality defects or personal safety accidents. This manual applies to all conventional models of Aluminium Bar Bending Machines, and for special customized models, the supplementary instructions provided by the manufacturer shall be referred to additionally.

2. Scope of Application

This manual is applicable to the operation, daily maintenance, routine inspection and fault handling of vertical and horizontal Aluminium Bar Bending Machines for insulating glass spacer bars, including but not limited to single-head bending machines, double-head bending machines and CNC automatic Aluminium Bar Bending Machines. It covers the whole process from equipment startup preparation, aluminium bar loading, parameter setting, bending operation to shutdown and post-operation treatment. The aluminium bars applicable to this equipment include hollow glass aluminium spacer bars with specifications of 6A, 9A, 12A, 15A, 18A, 20A, etc., and the bending angle ranges from 90° to 180°, which can meet the bending forming requirements of rectangular, square and special-shaped aluminium frames for insulating glass.

3. Equipment Overview

3.1 Basic Structure

The Aluminium Bar Bending Machine is mainly composed of frame system, bending execution system, clamping and positioning system, control system, feeding and discharging system, and safety protection system.


Frame System: It is the main bearing structure of the equipment, made of high-strength steel plate welding or profile assembly, with high rigidity and stability, to ensure that the equipment does not deform during the bending process.
Bending Execution System: The core working part of the equipment, including bending die, bending shaft, driving motor (servo motor or hydraulic motor), transmission mechanism, etc., which completes the bending action of aluminium bars through the rotation of the die and the driving of the power system.
Clamping and Positioning System: Composed of pneumatic clamping cylinder, positioning baffle, pressure plate, etc., it is used to fix the aluminium bar firmly during bending, prevent displacement and deflection, and ensure the bending accuracy.
Control System: Including touch screen, operation button panel, PLC controller, servo driver, etc., which realizes the setting of bending parameters (angle, length, speed), automatic operation control and fault alarm display.
Feeding and Discharging System: Consisting of feeding roller table, discharging bracket, conveying roller, etc., it facilitates the loading of raw aluminium bars and the unloading of formed aluminium frames, improving operation efficiency.
Safety Protection System: Including emergency stop button, safety grating, protective cover, overload protection device, etc., to prevent personal injury and equipment damage caused by misoperation.


3.2 Working Principle

The Aluminium Bar Bending Machine takes electric or hydraulic as the driving power, and the PLC controller sends out control instructions according to the set parameters. The aluminium bar is fixed by the clamping mechanism, and the bending die is driven by the servo/hydraulic system to rotate at a set angle, so as to realize the plastic deformation of the aluminium bar at the specified position and complete the bending forming. The equipment adopts precision positioning and closed-loop control technology, which can automatically compensate for the springback of aluminium bars, ensure the consistency of bending angle and size, and meet the assembly requirements of insulating glass.

3.3 Technical Parameters

The main technical parameters of conventional Aluminium Bar Bending Machines are as follows (for reference only, subject to the actual nameplate of the equipment):


Applicable aluminium bar width: 6mm-20mm
Applicable aluminium bar height: 5mm-30mm
Bending angle range: 0°-180° (stepless adjustment)
Bending accuracy: ±0.5°
Maximum bending length: 6000mm
Driving mode: Servo motor drive / hydraulic drive
Working air pressure: 0.4-0.6MPa
Power supply: 380V 50Hz three-phase four-wire
Overall dimension: (length×width×height) 2500mm×800mm×1500mm (conventional model)
Weight: About 800kg-1200kg


4. Pre-operation Preparation

4.1 Personnel Preparation


Operators must be over 18 years old, in good health, and have received special equipment operation training, familiar with the structure, performance, operating procedures and safety precautions of the Aluminium Bar Bending Machine, and hold a post certificate before taking up their posts.
Operators must wear standard labor protection equipment, including anti-pinch gloves, anti-static work clothes, safety shoes, and protective goggles (when cutting or processing special aluminium bars). It is forbidden to wear loose clothes, scarves, jewelry, or have long hair unbound, so as to avoid being involved in the rotating parts of the equipment.
Non-operators are strictly prohibited from entering the equipment working area, and obvious warning signs such as "No Unauthorized Operation" and "Danger, Keep Away" shall be set up at the operation site.


4.2 Equipment Inspection


Appearance and Structure Inspection: Check the appearance of the equipment for deformation, damage or loose parts, check the welding part of the frame for cracks, and check the fastening bolts of each component (such as die, clamping cylinder, motor base) for looseness, and tighten them in time if any.
Power and Air Supply Inspection: Check whether the power cord, plug and socket of the equipment are intact, whether the wiring is firm, and whether the leakage protector is normal. For pneumatic clamping models, check the air compressor, air pipeline and air filter for air leakage, blockage or water accumulation, and adjust the air pressure to 0.4-0.6MPa. Drain the water in the air storage tank and filter regularly to prevent moisture from entering the pneumatic components.
Mechanical Transmission Inspection: Check the bending die, transmission gear, chain, belt and other transmission parts for wear, deformation or damage, check whether the lubrication is sufficient, and add lubricating oil or grease according to the regulations if necessary. Manually rotate the bending shaft to check whether it rotates smoothly without jamming or abnormal noise.
Control System Inspection: Turn on the power supply of the equipment, check whether the touch screen and operation panel are lighted normally, whether the display data is accurate, and test the functions of start, stop, emergency stop, parameter adjustment and other buttons to ensure that all control functions are sensitive and effective. Check the PLC controller and servo driver for fault alarms, and eliminate the alarms in time if any.
Die and Accessory Inspection: Select the bending die matching the specification of the aluminium bar, check the die for wear, cracks or burrs, and replace it in time if it is damaged. Check the positioning baffle, pressure plate and clamping block for wear or deformation, and adjust or replace them to ensure the positioning accuracy.


4.3 Material and Tool Preparation


Select qualified aluminium spacer bars that meet the production requirements, check the appearance of aluminium bars for scratches, deformation, oxidation or impurities, check the dimensional accuracy (width, height, thickness), and prohibit the use of unqualified aluminium bars that do not meet the bending requirements.
Prepare auxiliary tools, such as hexagon wrench, screwdriver, torque wrench, cleaning cloth, lubricating oil, measuring tools (angle ruler, tape measure, vernier caliper), etc., to ensure that the tools are complete and intact.
Prepare the product drawings or process documents, confirm the bending parameters of aluminium bars (bending angle, side length, quantity, etc.), and input the parameters into the control system in advance for trial bending verification.


5. Standard Operation Procedures

5.1 Equipment Startup


Turn on the main power switch of the equipment, and then turn on the power supply of the control system, PLC and touch screen in sequence. Wait for the system to start and self-check, and confirm that there is no fault alarm before proceeding to the next operation.
For hydraulic drive models, turn on the hydraulic pump motor, run it idly for 3-5 minutes, check the hydraulic system for oil leakage, abnormal noise or overheating, and confirm that the hydraulic pressure is within the normal range.
For pneumatic models, open the air supply valve, check the air pressure gauge to ensure that the air pressure is stable at 0.4-0.6MPa, and test the action of the clamping cylinder to ensure that the clamping and loosening actions are flexible and in place.


5.2 Parameter Setting


Enter the parameter setting interface of the touch screen, input the bending parameters according to the product process requirements, including aluminium bar specification, bending angle, left and right side lengths, bending speed, clamping pressure, etc.
Set the springback compensation value according to the material characteristics of the aluminium bar (the springback of aluminium bars is generally 1°-3°, which can be adjusted according to the actual trial bending results).
For batch production, store the set parameters in the system program, name the program according to the product model, and call it directly during subsequent production to improve efficiency.
After setting the parameters, double-check to confirm that the input data is correct, and then save the parameters and exit the setting interface.


5.3 Aluminium Bar Loading and Positioning


Place the qualified aluminium bar flat on the feeding roller table, push it to the positioning baffle of the equipment, and adjust the position of the positioning baffle to ensure that the bending point of the aluminium bar is aligned with the center of the bending die.
Start the clamping mechanism (manual or automatic), and the clamping cylinder drives the pressure plate to press the aluminium bar firmly to prevent the aluminium bar from moving or rotating during the bending process. The clamping pressure should be appropriate, not too large to deform the aluminium bar, nor too small to cause insufficient clamping.
Use a measuring tool to recheck the positioning size of the aluminium bar, confirm that the bending position and length meet the process requirements, and then proceed to the bending operation.


5.4 Bending Operation

5.4.1 Manual Bending Mode


Select the manual operation mode on the control panel, and operate the manual button or joystick to control the bending die to rotate slowly, and observe the bending state of the aluminium bar in real time.
When the bending angle reaches the set value, the equipment will automatically stop or stop manually, and keep the pressure for 1-2 seconds to eliminate the springback of the aluminium bar.
Operate the loosening button to release the clamping mechanism, take out the bent aluminium bar, and use an angle ruler and tape measure to check the bending angle and size accuracy. If the accuracy is unqualified, readjust the springback compensation value and parameters for trial bending again.


5.4.2 Automatic Bending Mode


Select the automatic operation mode on the touch screen, call the pre-stored product program, and confirm that the parameters are correct.
Press the automatic start button, the equipment will automatically complete the actions of clamping, bending, pressure maintaining, loosening and resetting in sequence according to the set program.
During the automatic operation, the operator shall stand in the safe area outside the safety grating, observe the operation state of the equipment in real time, and pay attention to whether there is abnormal noise, aluminium bar deformation or equipment failure.
After the bending of a single aluminium bar is completed, the equipment will automatically reset and wait for the next feeding. For batch production, repeat the loading and start operation until the production task is completed.


5.5 Trial Bending and Batch Production


Before formal batch production, conduct trial bending on 2-3 aluminium bars, check the bending angle, side length, flatness and appearance quality of the formed aluminium frame, and confirm that all indicators meet the process standards.
If the trial bending product is unqualified, analyze the causes (such as parameter setting error, die mismatch, positioning deviation, aluminium bar quality problem), adjust the parameters or replace the accessories in time, and conduct trial bending again until the product is qualified.
After the trial bending is qualified, carry out formal batch production, and conduct random inspection on the formed products at regular intervals (every 50-100 pieces) to ensure the stability of product quality.


5.6 Equipment Shutdown


After completing the production task, press the stop button to stop the operation of the equipment, and reset the bending die and clamping mechanism to the initial position.
For hydraulic drive models, turn off the hydraulic pump motor first, and then turn off the main power supply; for pneumatic models, close the air supply valve first, and then turn off the power supply.
Clean the residual aluminium chips, dust and impurities on the equipment surface, roller table and die, wipe the equipment with a clean cloth, and apply anti-rust oil on the die and metal parts if necessary.
Hang the "Shutdown for Maintenance" or "No Operation" warning sign on the operation panel, and record the production data, operation time and equipment status in the equipment operation log.


6. Safety Precautions

6.1 Basic Safety Rules


It is strictly forbidden to operate the equipment with diseases, fatigue, drunk or distracted mental state, so as to avoid misoperation.
During the operation of the equipment, it is forbidden to extend hands, arms or any parts of the body into the bending working area, and it is forbidden to touch the rotating die, transmission parts and high-temperature components (hydraulic motor, servo motor) with bare hands.
Do not place tools, aluminium bars or other sundries on the equipment frame, control panel and safety protection device to avoid affecting the equipment operation or causing safety accidents.
The equipment must be reliably grounded to prevent electric shock accidents. Do not disassemble or modify the electrical components, control circuit and mechanical structure of the equipment without authorization.
In case of power failure or air failure during operation, immediately press the emergency stop button, cut off the power supply and air supply, and wait for the power supply and air supply to return to normal before restarting the operation after inspection.


6.2 Special Operation Safety


When replacing the bending die, the equipment must be completely shut down, the power supply and air supply/hydraulic supply must be cut off, and the operation can be carried out only after the die is completely stopped. Use special tools to disassemble and assemble the die to avoid injury caused by die falling.
When bending special-shaped or ultra-long aluminium bars, add auxiliary support brackets to prevent the aluminium bars from deforming or swinging during the bending process, and arrange special personnel to assist in feeding and discharging.
When the equipment is running with overload or abnormal noise, immediately press the emergency stop button, cut off the power supply, check the cause of the fault, and it is forbidden to continue operation with fault.
The safety grating, protective cover and emergency stop button of the equipment shall not be dismantled or shielded at will, and regular inspection shall be carried out to ensure their effectiveness.


6.3 Emergency Handling


In case of personal injury (such as pinch, scald, electric shock), immediately cut off the power supply and air supply, carry out first aid measures, and send to the hospital for treatment in time.
In case of equipment failure (such as die jamming, hydraulic oil leakage, motor overheating), press the emergency stop button immediately, stop the operation, record the fault phenomenon, and notify the professional maintenance personnel for repair.
In case of fire caused by electrical short circuit or hydraulic oil combustion, immediately cut off the power supply, use dry powder fire extinguisher to put out the fire, and it is forbidden to use water to put out the electrical fire.


7. Equipment Maintenance and Upkeep

7.1 Daily Maintenance (Once per Shift)


Clean the equipment surface, die, roller table and working area, remove aluminium chips, dust and impurities, and keep the equipment clean.
Check the fastening of bolts, nuts and connectors of each component, and tighten them in time if loose.
Check the air pressure, hydraulic pressure and lubrication state of the equipment, add lubricating oil or grease to the transmission parts (bearing, gear, chain) according to the regulations, and check the hydraulic oil level and oil quality.
Test the functions of emergency stop button, safety grating and control buttons to ensure they are normal.
Record the daily maintenance situation in the equipment maintenance log.


7.2 Weekly Maintenance (Once a Week)


Thoroughly clean the inside of the equipment, including the hydraulic oil tank, air filter, control cabinet, remove dust and impurities, and check the wiring in the control cabinet for looseness.
Check the wear of bending die, clamping block, positioning baffle and transmission parts, and replace the seriously worn parts in time.
Drain the water and impurities in the air storage tank, air filter and hydraulic oil tank, and check the hydraulic oil for deterioration or pollution. If necessary, replace the hydraulic oil and filter element.
Calibrate the bending angle and positioning size of the equipment, and adjust the deviation to ensure the processing accuracy.
Check the operation of the servo motor, hydraulic pump and clamping cylinder, and eliminate abnormal noise and oil leakage.


7.3 Monthly Maintenance (Once a Month)


Conduct a comprehensive inspection of the electrical system, including the PLC controller, servo driver, touch screen, sensor, etc., check the wiring for aging or damage, and replace the damaged wires in time.
Perform lubrication maintenance on all transmission mechanisms, replace the lubricating oil or grease that has deteriorated or exceeded the service life, and adjust the tightness of the chain and belt.
Check the sealing performance of the hydraulic system and pneumatic system, replace the aging sealing ring and oil seal, and eliminate oil leakage and air leakage faults.
Calibrate the pressure gauge, temperature sensor and other measuring instruments of the equipment to ensure the accuracy of measurement data.
Conduct a comprehensive test run of the equipment, check the operation status of each system, and deal with potential faults in advance.


7.4 Annual Maintenance (Once a Year)


Conduct a comprehensive disassembly and inspection of the equipment, check the wear of key components such as frame, bending shaft, bearing, and carry out repair or replacement according to the wear degree.
Replace all hydraulic oil, lubricating oil, filter element and sealing parts of the equipment, and clean the hydraulic oil tank and lubrication system.
Conduct a comprehensive calibration of the control system, update the system program if necessary, and optimize the bending parameters.
Conduct a safety performance evaluation of the equipment, including safety protection device, grounding system, overload protection, etc., to ensure that the equipment meets the safety standards.
After the annual maintenance is completed, conduct a comprehensive test run and acceptance, and record the maintenance content and acceptance results in the equipment file.


8. Troubleshooting of Common Faults

8.1 Inaccurate Bending Angle


Fault Causes: Incorrect springback compensation parameter setting, wear or deformation of bending die, loose positioning baffle, unstable air pressure/hydraulic pressure, damage of angle sensor.
Solutions: Readjust the springback compensation value according to the trial bending results; replace the worn or deformed bending die; tighten the positioning baffle and recalibrate the positioning size; check the air compressor/hydraulic pump to stabilize the pressure; replace the damaged angle sensor and recalibrate.


8.2 Aluminium Bar Deformation or Scratches During Bending


Fault Causes: Improper clamping pressure, burrs or wear on the die and clamping block, unqualified aluminium bar material, misalignment of bending point.
Solutions: Adjust the clamping pressure to an appropriate value; polish or replace the die and clamping block with burrs or wear; replace qualified aluminium bars; recalibrate the bending point position to ensure alignment with the die center.


8.3 Clamping Mechanism Fails to Clamp or Loosen


Fault Causes: Insufficient air pressure/hydraulic pressure, blockage of air pipe/hydraulic pipe, damage of clamping cylinder, failure of solenoid valve, loose circuit connection.
Solutions: Adjust the air pressure/hydraulic pressure to the normal range; clean the blocked pipeline; replace the damaged clamping cylinder; check and replace the faulty solenoid valve; tighten the loose circuit connector.


8.4 Equipment Abnormal Noise or Vibration


Fault Causes: Insufficient lubrication of transmission parts, loose fastening bolts, wear or damage of bearing and gear, unbalanced bending die, overload operation.
Solutions: Add lubricating oil or grease to the transmission parts; tighten all loose fastening bolts; replace the worn bearing and gear; recalibrate the balance of the bending die; reduce the processing load to avoid overload operation.


8.5 Hydraulic System Oil Leakage


Fault Causes: Aging or damage of sealing ring, loose joint of hydraulic pipe, crack of hydraulic oil tank, damage of hydraulic pump shaft seal.
Solutions: Replace the aging sealing ring; tighten the loose hydraulic pipe joint; weld or replace the cracked hydraulic oil tank; replace the damaged hydraulic pump shaft seal.


8.6 Control System Failure (Touch Screen No Display, Parameter Cannot Be Set)


Fault Causes: Power supply abnormality, loose connection of control line, damage of touch screen or PLC controller, system program error.
Solutions: Check the power supply and restore normal power supply; tighten the loose control line connector; replace the damaged touch screen or PLC controller; restart the system or reload the program to restore the normal operation of the control system.


9. Storage and Transportation of Equipment

9.1 Equipment Storage


The equipment should be stored in a dry, ventilated, dust-free and non-corrosive gas environment, away from heat sources, direct sunlight and rain.
Before storage, clean the equipment thoroughly, apply anti-rust oil on all metal parts and die, cover the equipment with a dust cover, and block the hydraulic pipe and air pipe interface to prevent dust and impurities from entering.
The equipment should be placed flat on a solid ground, and the support points should be set according to the requirements to avoid deformation of the frame. Regular inspection should be carried out during storage, and anti-rust and moisture-proof treatment should be done well.


9.2 Equipment Transportation


The equipment transportation should be carried out by a professional logistics company, and the transportation vehicle should have a fixed device to prevent the equipment from shaking or colliding during transportation.
Before transportation, fix all movable parts of the equipment (such as bending die, clamping cylinder, roller table) with fixtures, remove the easily damaged parts (such as touch screen, sensor) and pack them separately for transportation.
During loading and unloading, use a forklift or crane that meets the lifting requirements, and operate in accordance with the hoisting specifications to avoid impact or tilting of the equipment. The lifting point should be selected at the designated position of the equipment frame.
During transportation, cover the equipment with a rainproof and dustproof cloth to prevent rain, snow and dust from eroding the equipment.


10. Supplementary Provisions


This manual is the basic operation standard of the Aluminium Bar Bending Machine, and the operator shall strictly abide by it. If there is any conflict with the special instructions of the equipment manufacturer, the manufacturer's instructions shall prevail.
The enterprise shall formulate corresponding operation management system and maintenance system according to this manual, and assign special personnel to be responsible for the management and maintenance of the equipment.
Any modification, transformation or upgrade of the equipment must be approved by the equipment manufacturer or professional technical personnel, and shall not be carried out without authorization.
The operator shall be responsible for the equipment damage and personal safety accidents caused by violation of this manual.
This manual shall be kept properly, and the lost or damaged manual shall be reported to the equipment management department in time for replacement. The technical department of the enterprise is responsible for the interpretation and revision of this manual.

Automatic Dessicant Filling Machine: A Comprehensive Analysis of Technology, Application and Industrial Value

1. Introduction

In the modern industrial manufacturing and product packaging system, moisture control has become a key link to ensure product quality, extend shelf life and maintain performance stability. Dessicants, as core materials for absorbing moisture and regulating environmental humidity, are widely used in food, pharmaceutical, electronic manufacturing, insulating glass, precision instruments and other fields. The traditional manual or semi-automatic desiccant filling method has problems such as low efficiency, large filling error, easy material waste, high labor cost and difficulty in meeting large-scale standardized production. Against this background, the Automatic Dessicant Filling Machine, as an automated equipment integrating mechanical, electrical, pneumatic, sensing and intelligent control technologies, has gradually replaced traditional processes and become an indispensable core equipment in the desiccant application and packaging industry chain.

This paper systematically combs the core connotation, working principle, structural composition, technical parameters, application scenarios, core advantages and market development trends of the Automatic Dessicant Filling Machine, and deeply analyzes its technological innovation path and future development direction, aiming to provide a comprehensive reference for industrial practitioners, equipment R&D personnel and market investors, and clarify the important value of this equipment in promoting industrial automation upgrading and quality improvement.

2. Definition and Classification of Automatic Dessicant Filling Machine

2.1 Core Definition

The Automatic Dessicant Filling Machine is a special automated mechanical and electrical integration equipment that can automatically complete the processes of desiccant feeding, metering, filling, sealing (partial models), detection and rejection without manual intervention. It takes desiccant (including silica gel, molecular sieve, montmorillonite, calcium chloride and other granular, powdery or columnar desiccants) as the processing object, and realizes precise, efficient and standardized filling operations for different containers (such as insulating glass aluminum spacer frames, food and pharmaceutical bottles, electronic product packaging boxes, desiccant small bags, etc.) through programmable logic controller (PLC) control, servo drive and sensing detection technology, so as to meet the moisture-proof needs of various industrial products.

2.2 Main Classification

According to different application scenarios, processing objects and functional configurations, Automatic Dessicant Filling Machines can be divided into the following categories:

2.2.1 Classified by Application Field


Insulating Glass Special Dessicant Filling Machine: Mainly used for filling molecular sieve desiccant into aluminum spacer frames or stainless steel spacer frames of insulating glass. It integrates automatic drilling, filling and sealing functions, and can adapt to spacer frames of different sizes (from 300mm×250mm to 2000mm×2000mm) and specifications (5.5-26.5mm in width). Typical models include LJGZ2020 series and ARL-45F, which are core equipment in the insulating glass deep processing industry.
Packaging Line Dessicant Inserting/Filling Machine: Applied to food, pharmaceutical, health care products and electronic product packaging lines, mainly for inserting desiccant bags, columnar desiccants or filling loose desiccants into bottles, boxes and bags. It can be seamlessly connected with filling, capping, labeling and other equipment to form a fully automated packaging production line, such as ZONESUN ZS-PD1 and Rx-Desiccant series.
Desiccant Bag Automatic Filling Machine: Specialized in the production of small desiccant bags, realizing automatic film feeding, metering and filling of desiccant, heat sealing, cutting and other processes, suitable for mass production of small-package desiccants (such as 1g, 5g, 10g specifications), with a production speed of up to 20-100 bags per minute.


2.2.2 Classified by Automation Degree


Fully Automatic Dessicant Filling Machine: Realizes unmanned operation in the whole process, with functions such as automatic feeding, automatic metering, automatic filling, automatic fault detection, automatic rejection of unqualified products and automatic material replenishment. It is equipped with a touch human-machine interface (HMI) and PLC control system, and can store multiple production recipes to meet flexible production needs.
Semi-Automatic Dessicant Filling Machine: Needs manual assistance in partial links (such as manual placement of containers, manual feeding of desiccants), and the core filling and metering links are automated. It has a small footprint and low cost, and is suitable for small-batch and multi-variety production scenarios.


2.2.3 Classified by Filling Form


Granular/Powder Dessicant Filling Machine: For granular (such as silica gel particles, molecular sieve) and powdery desiccants, it adopts vibration feeding, spiral metering or gravity metering to ensure the accuracy of single filling, and is equipped with an anti-dust device to avoid material flying.
Columnar/Block Dessicant Filling Machine: Aims at columnar or block desiccants, adopts mechanical clamping and pushing structure, realizes precise insertion into containers, and is equipped with infrared counting and detection functions to avoid missing filling or multiple filling.
Desiccant Bag Inserting Machine: For pre-made desiccant bags, it completes automatic cutting, conveying and inserting into packaging containers, with a high-speed cutting structure to avoid bag breakage and desiccant leakage.


3. Working Principle and Structural Composition

3.1 Core Working Principle

The Automatic Dessicant Filling Machine takes the PLC control system as the core, and realizes the coordinated operation of each mechanism through the combination of pneumatic, servo drive and sensing detection technology, and completes the whole process of desiccant filling in accordance with the preset program. The basic working process is as follows:

First, the desiccant is stored in the feeding hopper, and the automatic feeding mechanism (vibration feeder, spiral conveyor or pneumatic conveying device) transports the desiccant to the metering unit according to the set flow rate. The metering unit adopts high-precision sensors (infrared counting sensor, weighing sensor, volume metering sensor) to measure the desiccant, ensuring that the single filling amount meets the process requirements. Then, the positioning mechanism fixes the container (insulating glass spacer frame, packaging bottle, etc.) at the designated filling position, and the filling head moves to the filling port under the drive of the servo motor to complete the desiccant filling. For insulating glass special models, after filling, the automatic sealing mechanism uses butyl rubber to seal the drilling hole to prevent desiccant leakage and moisture intrusion; for packaging line models, after filling/inserting, the detection mechanism checks for missing filling, broken bags and other problems, and the unqualified products are automatically rejected, while the qualified products enter the next process. In addition, the machine is equipped with a material level sensor, which triggers an alarm and starts the automatic replenishment function when the desiccant is insufficient, ensuring the continuity of production.

The whole process is controlled by the PLC system, and the operating parameters (filling amount, filling speed, filling height, sealing time, etc.) can be adjusted and set through the touch screen, and the production data (production quantity, qualified rate, fault information, etc.) can be recorded and displayed in real time to realize intelligent management of the production process.

3.2 Key Structural Composition

The Automatic Dessicant Filling Machine is a complex system integrating multiple modules, and its core components directly determine the equipment's performance, stability and filling accuracy. The main structural modules are as follows:

3.2.1 Control System Module

As the "brain" of the equipment, it mainly includes PLC controller (mostly imported brands such as Siemens and Omron), touch human-machine interface (HMI), relay, contactor and other electrical components. The PLC system is responsible for receiving signals from sensors, issuing execution instructions to drive mechanisms, and realizing logic control of the whole process; the touch screen provides a human-computer interaction platform, which can set process parameters, store production recipes, monitor operating status and query fault information, and supports multi-language switching to adapt to different regional use needs.

3.2.2 Feeding and Metering Module

This module is the core to ensure filling accuracy, including feeding hopper, automatic feeding mechanism (vibration feeder, spiral propeller, pneumatic conveying pipeline), metering unit and material level detection sensor. The feeding hopper is usually made of food-grade or industrial-grade stainless steel, with a large capacity (standard 5L, optional 20L) to reduce the frequency of manual feeding; the metering unit adopts different forms according to desiccant types: granular desiccant uses infrared counting or volume metering, powdery desiccant uses spiral metering or weighing feedback metering, and desiccant bags use fixed-length cutting metering. The material level sensor monitors the residual amount of desiccant in real time, and sends an alarm signal when the material is insufficient to realize automatic replenishment.

3.2.3 Filling and Execution Module

Including filling head, servo drive mechanism, positioning fixture, pneumatic cylinder and other components. The filling head is designed with anti-drip and anti-blocking structure, and the filling height can be adjusted automatically according to the container size; the servo drive mechanism ensures the precise movement of the filling head, with a positioning accuracy of up to ±0.1mm; the positioning fixture can be quickly replaced to adapt to containers of different shapes and sizes (round, square, rectangular, etc.), realizing tool-free quick changeover. For insulating glass models, this module also includes an automatic drilling mechanism and a sealing mechanism, which can complete drilling and butyl rubber sealing synchronously with filling.

3.2.4 Detection and Rejection Module

Equipped with a variety of sensors (infrared sensor, photoelectric sensor, pressure sensor, weighing sensor), it realizes real-time detection of filling status, including missing filling detection, filling amount detection, desiccant bag breakage detection, container in-place detection, etc. When unqualified products are detected, the system immediately sends a signal, and the rejection mechanism pushes the unqualified products to the designated area to ensure that only qualified products enter the next process. At the same time, the module has fault self-diagnosis function, which can quickly locate faults such as motor abnormality, sensor failure and air pressure shortage, and display fault codes on the touch screen to facilitate maintenance.

3.2.5 Frame and Protective Module

The frame is made of high-strength aluminum alloy or stainless steel, with industrial plastic spraying treatment on the surface, which has the characteristics of corrosion resistance, wear resistance and easy cleaning; the protective module includes safety grating, emergency stop button, protective cover and other devices, which meets the industrial safety standards, prevents operators from contacting the moving parts, and ensures the safety of operation.

4. Core Technical Parameters and Performance Indicators

The technical parameters of the Automatic Dessicant Filling Machine are the key basis for measuring its performance and selecting models. Different types of equipment have different parameter standards, and the common core technical parameters and performance indicators are as follows:

4.1 Basic Operating Parameters


Power Supply: AC 110V/220V/380V, 50/60Hz, power range from 500W (small packaging line models) to 2.5KW (insulating glass large models);
Air Pressure Requirement: ≥0.65MPa, air consumption is 2-5CFM@90PSI, equipped with air filtration and pressure regulation device to ensure stable pneumatic operation;
Production Efficiency: Packaging line models can reach 10-150 bottles per minute (BPM), insulating glass models can complete filling of a 1m×1m spacer frame in about 30 seconds, and desiccant bag models can produce 20-100 bags per minute;
Adaptable Container/Spacer Size: Insulating glass models: minimum 300mm×250mm, maximum 2000mm×2000mm, spacer width 5.5-26.5mm; packaging line models: suitable for containers with a neck diameter of more than 2 inches, height of 1-12 inches, and desiccant bags with a size of ≤150mm×35mm;
Adaptable Desiccant Specifications: Granular diameter 0.5-1.5mm (molecular sieve, silica gel), columnar desiccant of various lengths, desiccant bags of 1-50g specifications.


4.2 Precision and Stability Indicators


Filling Accuracy: ±1%-±3% (for granular/powdery desiccant), counting accuracy of columnar desiccant/desiccant bags up to 99.9%;
Positioning Accuracy: Servo drive positioning accuracy ±0.1mm, ensuring that the filling head is accurately aligned with the container filling port;
Operating Stability: Continuous operation time of more than 24 hours, fault rate ≤0.5%, and the service life of core components (servo motor, PLC) is more than 5 years;
Sealing Performance: For insulating glass models, the butyl rubber sealing is tight, with no desiccant leakage and air leakage rate meeting the insulating glass industry standards; for desiccant bag models, the heat sealing strength is uniform, with no bag breakage and desiccant leakage.


4.3 Intelligent and Humanized Parameters


Recipe Storage Capacity: Can store 50-100 groups of production recipes, realizing one-key switching of different products;
Fault Self-Diagnosis: Can identify more than 50 kinds of common faults, and display fault causes and solutions in real time;
Data Interaction: Supports connection with MES system, realizes real-time upload of production data, and meets the needs of industrial digital management;
Changeover Time: Tool-free quick changeover, and the time for replacing container/desiccant specifications is ≤10 minutes.


5. Application Fields and Scenario Requirements

With the continuous improvement of industrial automation level and the increasingly strict requirements for product moisture-proof performance, the Automatic Dessicant Filling Machine has been widely used in multiple industries, and each field has specific scenario requirements for equipment performance.

5.1 Insulating Glass Manufacturing Industry

As the largest application field of desiccant filling machines, insulating glass needs to fill molecular sieve desiccant into the spacer frame to absorb moisture in the interlayer and prevent glass fogging and condensation. The industry requires the equipment to have the functions of automatic drilling, filling and sealing, adapt to various shapes of spacer frames (straight, arc, special-shaped), and the filling amount of molecular sieve is accurate to ensure the service life of insulating glass (more than 15 years). At the same time, the equipment needs to be compatible with flexible spacers (such as Swisspacer) and ordinary aluminum spacers, and can realize simultaneous filling of both sides of the spacer frame to improve production efficiency.

5.2 Food and Health Care Products Industry

Food (such as snacks, dried fruits, canned food) and health care products are extremely sensitive to moisture, and desiccant bags or columnar desiccants need to be inserted into the packaging to extend the shelf life. The industry has strict hygiene requirements, and the contact parts of the equipment must be made of food-grade 316 stainless steel, with no dead corners and easy cleaning to meet GMP and food safety standards; at the same time, the equipment needs to be seamlessly connected with the existing packaging line (filling, capping, labeling), with high-speed operation capacity (up to 150BPM) and zero missing filling rate to avoid food quality problems caused by missing desiccant.

5.3 Pharmaceutical Industry

Pharmaceutical products (such as tablets, capsules, powder injections) have extremely high requirements for moisture-proof and sterile environments. The desiccant filling machine needs to meet the pharmaceutical GMP certification, with dust-proof and sterile design, and the filling process is fully enclosed to avoid cross-contamination; the filling accuracy is higher (±1%), and the equipment has functions such as real-time monitoring of filling data and traceability of production records to meet the regulatory requirements of the pharmaceutical industry. In addition, the equipment needs to adapt to various pharmaceutical packaging containers (bottles, blister boxes, cartons) and realize flexible switching of different desiccant specifications.

5.4 Electronic and Precision Instrument Industry

Electronic components, circuit boards, precision instruments and other products are prone to short circuit, rust and performance degradation due to moisture. The desiccant filling machine needs to realize precise insertion of desiccant into electronic product packaging boxes/bags, with anti-static design to avoid damage to electronic components; the equipment has high stability, no dust and particle emission during operation, and adapts to small and precise packaging containers to meet the moisture-proof needs of high-value electronic products.

5.5 Other Industrial Fields

In addition, the Automatic Dessicant Filling Machine is also used in leather, furniture, textile, chemical and other industries, mainly for filling desiccant into product packaging to prevent moisture, mildew and oxidation during storage and transportation. For these fields, the equipment focuses on cost performance, adaptability to different desiccant types and simple operation, to meet the needs of small and medium-sized enterprises for automated production.

6. Core Advantages of Automatic Dessicant Filling Machine

Compared with manual and semi-automatic filling methods, the Automatic Dessicant Filling Machine has obvious advantages in efficiency, accuracy, cost, quality and intelligence, which is the core driving force for its popularization in the industry.

6.1 Significant Improvement of Production Efficiency

The fully automatic operation mode eliminates the link of manual intervention, and the production efficiency is 5-10 times higher than that of manual filling. Taking the packaging line model as an example, the production speed can reach 150BPM, and the insulating glass model can complete the filling of hundreds of spacer frames per hour; at the same time, the equipment can run continuously for 24 hours, and the automatic material replenishment and fault self-recovery functions reduce the downtime caused by material shortage and faults, greatly improving the overall production capacity of the production line.

6.2 Guaranteed Filling Accuracy and Product Quality

High-precision metering and sensing technology ensures the consistency of filling amount, avoiding the problems of insufficient moisture-proof effect caused by less filling and material waste caused by more filling; the fully enclosed filling process prevents desiccant from being polluted by dust and bacteria, and the detection and rejection module eliminates unqualified products, ensuring that each product meets the process standards. For industries such as food and pharmaceuticals, this effectively avoids quality accidents and reduces the loss caused by unqualified products.

6.3 Significant Reduction of Production Cost

On the one hand, it reduces labor costs: a fully automatic filling machine can replace 5-8 manual operators, and only one person is needed for daily operation and maintenance, which greatly saves labor expenditure; on the other hand, it reduces material waste: the accurate metering system reduces the waste of desiccant by more than 5% compared with manual operation, and the anti-breakage and anti-leakage design of the filling head reduces the loss of desiccant bags and containers; in addition, the long service life and low fault rate of the equipment reduce maintenance costs and downtime losses.

6.4 Strong Flexibility and Adaptability

The equipment can store multiple production recipes, and realize quick switching of different desiccant types, container specifications and filling processes by adjusting parameters on the touch screen, with tool-free changeover and strong adaptability to multi-variety and small-batch production; at the same time, it can be customized according to customer needs, such as adding double filling stations, height adjustment devices, special-shaped filling functions, etc., to meet the personalized process requirements of different industries.

6.5 Intelligent Management and Compliance Improvement

The PLC control system realizes real-time monitoring of production data, automatic recording of production quantity, qualified rate, fault information and other data, which is convenient for enterprises to carry out production management and quality traceability; the equipment meets industrial safety, food hygiene, pharmaceutical GMP and other industry standards, and the safety protection and sterile design help enterprises pass relevant certifications and meet regulatory requirements.

6.6 Improvement of Working Environment and Labor Safety

The fully enclosed operation reduces dust and noise, and the safety protection devices (safety grating, emergency stop button) avoid industrial accidents caused by manual contact with moving parts; at the same time, it liberates workers from heavy and repetitive manual labor, reduces labor intensity and improves the working environment of the production line.

7. Market Development Status and Trends

7.1 Global Market Status

In recent years, driven by the rapid development of food, pharmaceutical, electronic manufacturing, insulating glass and other downstream industries, the global demand for Automatic Dessicant Filling Machines has maintained a steady growth trend. The Asia-Pacific region, represented by China, Japan and South Korea, has become the largest market due to its rapid industrialization, large manufacturing scale and continuous improvement of automation level; Europe and the United States, as developed regions, focus on high-end intelligent and customized models, with high requirements for equipment accuracy, stability and compliance; emerging markets in Latin America, Africa and the Middle East are in the stage of industrial upgrading, and the demand for cost-effective automatic filling machines is growing rapidly.

At present, the global market competition pattern is relatively clear: European and American brands (such as LiSEC, BellatRx) occupy the high-end market with advanced technology, high stability and complete after-sales service, mainly serving large enterprises in the insulating glass and pharmaceutical industries; Chinese brands (such as ZONESUN, LIJIANG Glass) have rapidly risen with cost performance, fast delivery and customized services, and have a high market share in the middle and low-end markets and emerging markets, and some high-end models have gradually entered the European and American markets.

7.2 Core Market Trends

7.2.1 Intelligent and Digital Upgrading

With the development of industrial Internet and artificial intelligence, the Automatic Dessicant Filling Machine is developing towards higher intelligence: integrating AI algorithms to realize adaptive adjustment of filling parameters (automatically optimizing filling speed and metering accuracy according to desiccant characteristics and container changes); adding digital twin technology to simulate the filling process and predict faults in advance; realizing remote monitoring, fault diagnosis and program upgrade through cloud platforms, and meeting the needs of intelligent factory management.

7.2.2 High Precision and High Efficiency

Downstream industries have higher and higher requirements for desiccant filling accuracy and production efficiency, and the equipment is developing towards higher precision (filling accuracy up to ±0.5%) and higher speed (packaging line models exceeding 200BPM); at the same time, multi-station and multi-channel synchronous filling technology is adopted to further improve production capacity, and the lightweight and compact design reduces the floor space and improves the space utilization rate of the production line.

7.2.3 Green and Energy-Saving Development

In response to the global call for energy conservation and emission reduction, the equipment is optimized in terms of energy consumption: adopting high-efficiency servo motors and energy-saving pneumatic components to reduce power and air consumption; using recyclable and environmentally friendly materials for the frame and contact parts; designing a dust recovery system to collect desiccant dust and realize material recycling, reducing environmental pollution and material waste.

7.2.4 Customization and Integration

The personalized needs of downstream industries are becoming more and more prominent, and customized equipment (such as special-shaped container filling, ultra-small desiccant filling, high-temperature resistant desiccant filling) has become a new growth point; at the same time, the equipment is developing towards integration with the whole production line, realizing seamless connection with filling, capping, labeling, testing, packaging and other equipment, and forming a fully automated intelligent production line to improve the overall automation level of the factory.

7.2.5 Compliance and Standardization Improvement

With the increasingly strict regulatory standards in food, pharmaceutical and other industries, the equipment pays more attention to compliance design: meeting GMP, FDA, CE and other international certifications, with sterile, dust-proof and anti-cross-contamination functions; establishing a complete quality traceability system, recording the whole process of equipment operation and product production, to meet the regulatory requirements of product quality traceability.

8. Challenges and Future Development Prospects

8.1 Existing Challenges

Although the Automatic Dessicant Filling Machine has achieved rapid development, it still faces some challenges in the process of industrial popularization: first, the technical level of some domestic small and medium-sized brands is uneven, and the core components (such as high-precision sensors, servo motors) still rely on imports, resulting in high production costs and weak competitiveness in the high-end market; second, the after-sales service system of some enterprises is not perfect, and the response speed to equipment faults and maintenance needs is slow, affecting the user experience; third, the adaptability to special desiccants (such as ultra-fine powder, corrosive desiccant) and special containers (such as micro containers, irregular containers) needs to be further improved; fourth, the digital transformation of small and medium-sized enterprises is slow, and the acceptance and application capacity of high-end intelligent filling machines are insufficient.

8.2 Future Development Prospects

In the future, with the continuous advancement of industrial automation, the upgrading of downstream industries and the breakthrough of core technologies, the Automatic Dessicant Filling Machine will show broader development prospects:

In terms of technology, the localization of core components will be accelerated, and domestic brands will break through the technical monopoly of foreign brands in high-precision sensors, intelligent control systems and other fields, reducing production costs and improving product competitiveness; the integration of new technologies such as 5G, machine vision and big data will further improve the intelligence level of the equipment, realizing unmanned production and full-process digital management.

In terms of application, the application fields will continue to expand, and new energy batteries, aerospace, medical devices and other emerging high-end fields will put forward new demands for desiccant filling equipment, promoting the development of the equipment in the direction of ultra-high precision, ultra-clean and special environment adaptation; at the same time, the demand for customized and personalized equipment will continue to grow, and the equipment manufacturers will shift from "standardized production" to "customized solutions" to meet the diversified needs of different industries.

In terms of market, the global market demand will maintain steady growth, and Chinese brands will further expand the international market with technological advantages and cost performance, and the global competition pattern will be more balanced; the industry will accelerate the elimination of backward production capacity, and enterprises with core technologies, complete after-sales service and strong R&D capabilities will occupy a dominant position, promoting the healthy and standardized development of the industry.

9. Conclusion

The Automatic Dessicant Filling Machine, as an important part of modern industrial automation equipment, has become a key link to ensure product quality, improve production efficiency and reduce production costs in food, pharmaceutical, insulating glass, electronic manufacturing and other industries. It integrates mechanical, electrical, pneumatic, sensing and intelligent control technologies, and realizes the transformation of desiccant filling from manual and semi-automatic to fully automatic and intelligent, with significant advantages in efficiency, accuracy, cost and quality.

At present, the industry is in a period of rapid development of intelligent and digital upgrading, and is facing both opportunities such as the expansion of downstream market demand and the breakthrough of core technologies, as well as challenges such as technical bottlenecks and market competition. In the future, equipment manufacturers need to increase R&D investment, break through the technical barriers of core components, improve the level of intelligence and customization, and improve the after-sales service system; downstream enterprises need to accelerate the pace of automation transformation, and select appropriate filling equipment according to their own production needs to improve the overall competitiveness of the industrial chain.

With the continuous progress of technology and the continuous upgrading of industrial demand, the Automatic Dessicant Filling Machine will play a more important role in the global industrial manufacturing system, and promote the high-quality development of multiple industries with more intelligent, efficient and stable performance.





The article has covered all the core dimensions of the Automatic Dessicant Filling Machine with a formal and professional tone. If you need to adjust the content focus (such as adding more case studies, simplifying technical descriptions, or expanding market data), or modify the length and style, please feel free to let me know.

Automatic Aluminium Spacer Bar Bending Machine: Technology, Application and Industrial Development

1. Introduction

In the modern architectural glass deep processing industry, insulating glass has become the core component of energy-saving buildings due to its excellent thermal insulation, sound insulation and anti-fogging performance. The aluminium spacer bar, as the key structural part of insulating glass, plays a vital role in maintaining the cavity thickness of insulating glass, sealing the molecular sieve desiccant and ensuring the structural stability of the glass unit. The traditional manual or semi-automatic bending process of aluminium spacer bars has the problems of low bending precision, poor consistency, low production efficiency, high labor intensity and difficulty in adapting to the production of complex-shaped spacer bars, which has become a bottleneck restricting the high-quality and large-scale development of the insulating glass industry.

Against this background, the Automatic Aluminium Spacer Bar Bending Machine, as an intelligent electromechanical integration equipment integrating mechanical transmission, servo control, numerical control system and sensing detection technology, has gradually replaced the traditional bending process and become the core equipment in the insulating glass production line. This paper systematically expounds the definition, structural composition, working principle, technical parameters, application scenarios, core advantages, market development status and future trends of the Automatic Aluminium Spacer Bar Bending Machine, aiming to provide a comprehensive reference for architectural glass processing enterprises, equipment R&D institutions and industry practitioners, and clarify the important value of this equipment in promoting the upgrading of the insulating glass industry.

2. Definition and Classification of Automatic Aluminium Spacer Bar Bending Machine

2.1 Core Definition

The Automatic Aluminium Spacer Bar Bending Machine is a special numerical control equipment specially designed for bending and forming aluminium spacer bars (including ordinary aluminium spacer bars, warm edge aluminium composite spacer bars, stainless steel spacer bars, etc.) used in insulating glass. It can automatically complete the processes of spacer bar feeding, length measurement, corner bending, angle forming, cutting and discharging according to the preset program and size parameters, without manual intervention in the whole process. Adopting high-precision servo drive and PLC numerical control system, it can realize the bending of aluminium spacer bars of different specifications, sizes and shapes (rectangle, square, special-shaped polygon, arc, etc.), with high bending precision, good forming consistency and high production efficiency, which is an indispensable key equipment in the automatic production line of insulating glass.

2.2 Main Classification

According to different structural forms, functional configurations and application scenarios, the Automatic Aluminium Spacer Bar Bending Machine can be divided into the following categories:

2.2.1 Classified by Bending Form


Right Angle Bending Machine: Mainly used for bending aluminium spacer bars into right-angle rectangular or square shapes, which is the most common type in the insulating glass industry. It is equipped with a fixed-angle bending mechanism, with high bending speed and high precision, suitable for the production of conventional rectangular insulating glass.
Multi-Angle Bending Machine: Adopting a servo-controlled rotating bending head, it can realize the bending of any angle (0°-180°), and can process special-shaped aluminium spacer bars such as trapezoid, rhombus and polygon, meeting the production needs of special-shaped insulating glass for high-end buildings.
Arc Bending Machine: Equipped with an arc forming mechanism, it can bend aluminium spacer bars into arc, circular or elliptical shapes, which is specially used for the production of curved insulating glass, such as curved glass for shopping malls, hotels and landmark buildings.
Composite Bending Machine: Integrating right-angle, multi-angle and arc bending functions, it is a multi-functional integrated equipment that can realize the one-stop processing of various shapes of aluminium spacer bars, with strong flexibility and high adaptability.


2.2.2 Classified by Automation Degree


Fully Automatic Bending Machine: Realizes unmanned operation in the whole process, including automatic feeding, automatic length measurement, automatic bending, automatic cutting, automatic discharging and automatic stacking. It is equipped with a touch human-machine interface and can store multiple processing programs, suitable for large-scale and standardized production of insulating glass enterprises.
Semi-Automatic Bending Machine: Needs manual assistance in partial links such as manual feeding and manual placement of spacer bars, while the core bending and forming links are automatically controlled. It has a small footprint and low cost, suitable for small and medium-sized insulating glass enterprises with small-batch and multi-variety production.


2.2.3 Classified by Processing Specification


Small-Size Bending Machine: Suitable for processing aluminium spacer bars with a width of 5.5-12mm and a minimum bending size of 100mm×100mm, mainly used for the production of small-sized insulating glass such as household doors and windows.
Large-Size Bending Machine: Suitable for processing aluminium spacer bars with a width of 12-27mm and a maximum bending size of 2500mm×3000mm, mainly used for the production of large-sized insulating glass for curtain walls, industrial buildings and public buildings.
Ultra-Wide Bending Machine: Specially designed for processing ultra-wide aluminium spacer bars (27-45mm), which is used for the production of high-performance insulating glass with large cavity thickness and high energy-saving requirements.


3. Structural Composition and Working Principle

3.1 Core Structural Composition

The Automatic Aluminium Spacer Bar Bending Machine is a complex system integrating multiple functional modules, and its structural design directly determines the equipment's bending precision, stability and production efficiency. The main structural modules are as follows:

3.1.1 Numerical Control System Module

As the "control core" of the equipment, it mainly includes PLC controller (Siemens, Omron and other international brands are commonly used), touch human-machine interface (HMI), motion control card and servo driver. The PLC system is responsible for receiving the size parameters input by the operator, calculating the bending path and angle, and issuing execution instructions to each drive mechanism; the touch screen provides a human-computer interaction platform, which can set processing parameters, store processing programs, monitor the operating status of the equipment in real time, and query fault information. The servo driver realizes the precise control of the bending head, feeding mechanism and cutting mechanism, ensuring the positioning accuracy of each action.

3.1.2 Feeding and Conveying Module

Including feeding rack, conveying roller, clamping mechanism and length measuring sensor. The feeding rack is used to store the coiled or straight aluminium spacer bars, and the conveying roller (driven by servo motor) transports the spacer bars to the bending station at a constant speed; the clamping mechanism fixes the spacer bars during the bending process to prevent displacement; the length measuring sensor (laser or encoder type) measures the length of the spacer bars in real time, with a measurement accuracy of ±0.1mm, ensuring the consistency of the processing length.

3.1.3 Bending and Forming Module

This is the core module of the equipment, including bending head, bending die, servo rotating mechanism and angle encoder. The bending head is driven by a high-power servo motor, and the bending die is made of high-strength alloy steel with wear-resistant and anti-deformation treatment, which can be quickly replaced according to the width of the spacer bar; the servo rotating mechanism realizes the precise rotation of the bending head, and the angle encoder feeds back the bending angle in real time, with an angle control accuracy of ±0.1°, ensuring the accuracy of the bending angle. For arc bending machines, this module is also equipped with an arc forming wheel set, which can adjust the arc radius steplessly.

3.1.4 Cutting and Discharging Module

Including pneumatic cutting knife, cutting die and discharging conveyor belt. After the bending and forming of the aluminium spacer bar is completed, the pneumatic cutting knife cuts the spacer bar according to the set length, with a cutting edge flat and no burrs; the discharging conveyor belt transports the formed spacer bar to the designated area, and some high-end models are equipped with an automatic stacking mechanism to realize automatic sorting and stacking of finished products.

3.1.5 Frame and Protective Module

The frame is made of high-strength cast iron or thick-walled steel plate, with good rigidity and shock resistance, which can avoid deformation during high-speed bending and ensure the stability of the equipment; the protective module includes safety grating, emergency stop button, protective cover and safety door, which meets the industrial safety standards, prevents operators from contacting the moving parts, and ensures the safety of operation.

3.2 Working Principle

The Automatic Aluminium Spacer Bar Bending Machine takes the PLC numerical control system as the core, and realizes the coordinated operation of each module through servo drive and sensing detection technology, and completes the whole process of aluminium spacer bar bending and forming according to the preset program. The specific working process is as follows:

First, the operator inputs the processing parameters (spacer bar width, bending size, bending angle, quantity, etc.) through the touch screen, and the system automatically generates the processing program. Then, the feeding mechanism transports the aluminium spacer bar from the feeding rack to the bending station, and the length measuring sensor measures the length of the spacer bar in real time and feeds back the data to the PLC system. When the spacer bar reaches the set length, the clamping mechanism fixes the spacer bar, and the servo motor drives the bending head to rotate to the set angle, and the bending die presses the spacer bar to complete the corner bending. For multi-angle or arc bending, the system controls the bending head to rotate continuously according to the pre-calculated path to realize the forming of complex shapes. After all bending processes are completed, the cutting mechanism cuts the spacer bar, and the discharging conveyor belt transports the finished product to the stacking area. The whole process is automatically controlled by the system, and the equipment can continuously process multiple spacer bars in a cycle, with high production efficiency and high forming precision.

In addition, the equipment is equipped with a fault self-diagnosis system, which can monitor the operating status of each module in real time. When faults such as motor abnormality, sensor failure and material jamming occur, the system will immediately stop operation, send an alarm signal, and display the fault cause and solution on the touch screen to facilitate maintenance.

4. Core Technical Parameters and Performance Indicators

The technical parameters of the Automatic Aluminium Spacer Bar Bending Machine are the key basis for measuring its performance and selecting models. Different types of equipment have different parameter standards, and the common core technical parameters and performance indicators are as follows:

4.1 Basic Processing Parameters


Applicable Spacer Bar Width: 5.5-45mm (conventional models are 5.5-27mm, ultra-wide models are 27-45mm)
Applicable Spacer Bar Thickness: 0.3-1.2mm
Processing Size Range: Minimum 100mm×100mm, Maximum 2500mm×3000mm (customizable for larger sizes)
Bending Angle Range: 0°-180° (stepless adjustment for multi-angle models, fixed 90° for right-angle models)
Arc Radius Range: 50mm-2000mm (for arc bending machines)
Processing Speed: 5-15 pieces per minute (depending on the size and shape of the spacer bar)
Power Supply: AC 380V, 50Hz, Power 3-7.5KW
Air Pressure Requirement: ≥0.6MPa, Air Consumption 0.3-0.5m³/min


4.2 Precision and Stability Indicators


Length Measurement Accuracy: ±0.1mm
Bending Angle Accuracy: ±0.1°
Diagonal Accuracy of Formed Spacer Bar: ±0.2mm
Repeat Positioning Accuracy: ±0.05mm
Continuous Operation Time: ≥24 hours
Fault Rate: ≤0.3%
Service Life of Core Components: ≥8 years (servo motor, PLC, bending die)


4.3 Intelligent and Humanized Parameters


Program Storage Capacity: 100-500 groups of processing programs
Changeover Time: Tool-free quick changeover of bending die, ≤5 minutes
Data Interaction: Supports connection with MES system, real-time upload of processing data
Fault Self-Diagnosis: Can identify more than 60 kinds of common faults, real-time display of fault information
Noise Level: ≤70dB (meeting industrial noise standards)


5. Application Scenarios and Industry Requirements

The Automatic Aluminium Spacer Bar Bending Machine is mainly used in the architectural glass deep processing industry, and its application scenarios cover various fields of insulating glass production, with different industry requirements for equipment performance.

5.1 Residential Building Doors and Windows Insulating Glass Production

This is the most mainstream application scenario, mainly producing rectangular insulating glass for residential doors and windows, with small and medium sizes (300mm×300mm-1500mm×2000mm). The industry requires the equipment to have high bending speed, good forming consistency and low cost, and the right-angle bending machine is the preferred model. At the same time, the equipment needs to adapt to the processing of aluminium spacer bars with a width of 5.5-12mm, and the formed spacer bar has no deformation, no cracks and tight corners, ensuring the sealing performance of insulating glass.

5.2 Commercial Building Curtain Wall Insulating Glass Production

Commercial building curtain walls require large-sized and high-performance insulating glass, with sizes up to 2500mm×3000mm and spacer bar widths of 12-27mm. The industry requires the equipment to have high rigidity, large processing range and high bending precision, and the large-size bending machine is the core equipment. In addition, the equipment needs to realize the processing of special-shaped spacer bars (trapezoid, polygon) to meet the design needs of complex curtain wall shapes, and the formed spacer bar has good structural stability to ensure the safety of curtain wall glass.

5.3 High-End Special-Shaped Insulating Glass Production

High-end buildings such as landmark buildings, shopping malls and hotels often use special-shaped insulating glass (arc, circular, elliptical, irregular polygon), which requires the equipment to have multi-angle and arc bending functions. The multi-angle and arc composite bending machine is the key equipment, which can realize the stepless adjustment of bending angle and arc radius, with high forming precision and good consistency, meeting the personalized design needs of high-end buildings.

5.4 Warm Edge Spacer Bar Processing

With the development of energy-saving buildings, warm edge aluminium composite spacer bars (low thermal conductivity, better energy-saving effect) are gradually replacing ordinary aluminium spacer bars. The processing of warm edge spacer bars requires the equipment to have a soft bending function, avoiding the cracking of the composite layer during bending. Therefore, the bending machine needs to be equipped with a special bending die and a buffer mechanism, with low bending pressure and high forming precision, to ensure the integrity of the warm edge spacer bar structure.

6. Core Advantages of Automatic Aluminium Spacer Bar Bending Machine

Compared with the traditional manual and semi-automatic bending process, the Automatic Aluminium Spacer Bar Bending Machine has obvious advantages in precision, efficiency, cost, quality and intelligence, which is the core driving force for its popularization in the insulating glass industry.

6.1 Ultra-High Bending Precision and Forming Consistency

Adopting high-precision servo drive and angle encoder control, the bending angle accuracy reaches ±0.1° and the length measurement accuracy reaches ±0.1mm, which completely solves the problems of angle deviation, length inconsistency and diagonal error in manual bending. The formed aluminium spacer bar has uniform size, tight corners, no deformation and no cracks, which effectively improves the assembly precision of insulating glass and ensures the sealing and structural stability of the glass unit.

6.2 Significant Improvement of Production Efficiency

The fully automatic operation mode eliminates the link of manual intervention, and the processing speed is 5-10 times higher than that of manual bending. A single fully automatic bending machine can process 5-15 pieces of spacer bars per minute, and can run continuously for 24 hours, which greatly improves the production capacity of insulating glass enterprises. At the same time, the quick changeover function of the bending die reduces the downtime caused by specification replacement, and further improves the overall production efficiency.

6.3 Great Reduction of Production Cost

On the one hand, it reduces labor costs: a fully automatic bending machine can replace 6-10 manual operators, and only one person is needed for daily operation and maintenance, which greatly saves labor expenditure; on the other hand, it reduces material waste: the high-precision processing reduces the scrap rate of aluminium spacer bars to less than 0.5%, which is far lower than the 5%-10% scrap rate of manual bending, saving a lot of raw material costs; in addition, the low fault rate and long service life of the equipment reduce maintenance costs and downtime losses.

6.4 Strong Flexibility and Adaptability

The equipment can store hundreds of processing programs, and realize quick switching of different sizes, widths and shapes of aluminium spacer bars by adjusting parameters on the touch screen, with tool-free changeover and strong adaptability to multi-variety and small-batch production. At the same time, it can be customized according to customer needs, such as adding double bending stations, ultra-large size processing mechanism, warm edge spacer bar special bending die, etc., to meet the personalized processing needs of different enterprises.

6.5 Intelligent Management and Quality Traceability

The PLC numerical control system realizes real-time monitoring of processing data, automatic recording of processing quantity, qualified rate, fault information and other data, which is convenient for enterprises to carry out production management and quality traceability. The equipment supports connection with the MES system of the factory, realizing the digital management of the whole production process, and meeting the requirements of modern intelligent manufacturing for data transparency and traceability.

6.6 Improvement of Working Environment and Labor Safety

The fully enclosed operation and safety protection devices reduce the noise and potential safety hazards in the processing process, and avoid industrial accidents caused by manual operation of bending tools. At the same time, it liberates workers from heavy and repetitive manual labor, reduces labor intensity and improves the working environment of the production line.

7. Market Development Status and Trends

7.1 Global Market Status

Driven by the global energy-saving building policy and the rapid development of the architectural glass industry, the demand for Automatic Aluminium Spacer Bar Bending Machines has maintained a steady growth trend in recent years. The Asia-Pacific region, represented by China, has become the largest market due to its large-scale construction of real estate, infrastructure and energy-saving buildings, and the rapid development of the insulating glass processing industry; Europe and the United States, as developed regions, focus on high-end intelligent and multi-functional bending machines, with high requirements for equipment precision, stability and environmental protection; emerging markets in the Middle East, Latin America and Africa are in the stage of urbanization construction, and the demand for cost-effective automatic bending machines is growing rapidly.

At present, the global market competition pattern is divided into three echelons: the first echelon is European brands such as LiSEC (Austria) and Bystronic (Switzerland), which occupy the high-end market with advanced technology, high stability and complete after-sales service, mainly serving large insulating glass processing enterprises; the second echelon is Chinese brands such as LIJIANG Glass, North Glass and CYGLASS, which have rapidly risen with cost performance, fast delivery and customized services, and have a high market share in the middle and low-end markets and emerging markets, and some high-end models have gradually entered the European and American markets; the third echelon is small and medium-sized brands in South Korea, Japan and other countries, which focus on regional markets and have limited competitiveness.

7.2 Core Market Trends

7.2.1 Intelligent and Digital Upgrading

With the development of industrial Internet and artificial intelligence, the Automatic Aluminium Spacer Bar Bending Machine is developing towards higher intelligence: integrating AI algorithms to realize adaptive adjustment of bending parameters (automatically optimizing bending speed and pressure according to the material and thickness of the spacer bar); adding digital twin technology to simulate the bending process and predict deformation in advance; realizing remote monitoring, fault diagnosis and program upgrade through cloud platforms, and meeting the needs of intelligent factory management.

7.2.2 Multi-Functional and Integrated Development

The single-function bending machine can no longer meet the diversified production needs of enterprises, and the multi-functional integrated bending machine integrating right-angle, multi-angle and arc bending has become the development trend. At the same time, the equipment is developing towards integration with the insulating glass production line, realizing seamless connection with desiccant filling machine, butyl rubber coating machine, glass pressing machine and other equipment, forming a fully automatic intelligent production line of insulating glass, and improving the overall automation level of the factory.

7.2.3 High Precision and High Efficiency

Downstream enterprises have higher and higher requirements for the processing precision and production efficiency of aluminium spacer bars, and the equipment is developing towards higher precision (bending angle accuracy up to ±0.05°) and higher speed (processing speed exceeding 20 pieces per minute); at the same time, the lightweight and compact design reduces the floor space of the equipment, and improves the space utilization rate of the production line.

7.2.4 Green and Energy-Saving Development

In response to the global call for energy conservation and emission reduction, the equipment is optimized in terms of energy consumption: adopting high-efficiency servo motors and energy-saving pneumatic components to reduce power and air consumption; using recyclable and environmentally friendly materials for the frame and bending die; designing a waste recycling system to collect aluminium scraps generated during cutting, realizing material recycling and reducing environmental pollution.

7.2.5 Customization and Personalization

The personalized design needs of modern buildings are becoming more and more prominent, and the demand for special-shaped aluminium spacer bars is increasing year by year. The customized bending machine (such as ultra-large size, ultra-small arc, special-shaped polygon processing) has become a new growth point of the market, and equipment manufacturers are shifting from standardized production to customized solutions to meet the diversified processing needs of different customers.

8. Challenges and Future Development Prospects

8.1 Existing Challenges

Although the Automatic Aluminium Spacer Bar Bending Machine has achieved rapid development, it still faces some challenges in the process of industrial popularization: first, the technical level of some domestic small and medium-sized brands is uneven, and the core components such as high-precision servo motors and numerical control systems still rely on imports, resulting in high production costs and weak competitiveness in the high-end market; second, the after-sales service system of some enterprises is not perfect, and the response speed to equipment faults and maintenance needs is slow, affecting the user experience; third, the adaptability to new materials such as ultra-thin warm edge spacer bars and stainless steel spacer bars needs to be further improved, and the bending precision and forming quality of new materials need to be optimized; fourth, the digital transformation of small and medium-sized insulating glass enterprises is slow, and the acceptance and application capacity of high-end intelligent bending machines are insufficient.

8.2 Future Development Prospects

In the future, with the continuous advancement of global energy-saving building policies, the upgrading of the architectural glass industry and the breakthrough of core technologies, the Automatic Aluminium Spacer Bar Bending Machine will show broader development prospects:

In terms of technology, the localization of core components will be accelerated, and domestic brands will break through the technical monopoly of foreign brands in high-precision servo systems, intelligent numerical control and other fields, reducing production costs and improving product competitiveness; the integration of new technologies such as 5G, machine vision and big data will further improve the intelligence level of the equipment, realizing unmanned production and full-process digital management.

In terms of application, the application fields will continue to expand, and the demand for special-shaped insulating glass in new energy vehicles, aerospace, medical equipment and other emerging fields will drive the development of the equipment in the direction of ultra-high precision, ultra-small size and special material adaptation; at the same time, the warm edge spacer bar, as the development direction of energy-saving spacer bars, will promote the upgrading of bending machine technology, and the special bending equipment for warm edge spacer bars will become the mainstream of the market.

In terms of market, the global market demand will maintain a compound annual growth rate of more than 5%, and Chinese brands will further expand the international market with technological advantages and cost performance, and the global competition pattern will be more balanced; the industry will accelerate the elimination of backward production capacity, and enterprises with core technologies, complete after-sales service and strong R&D capabilities will occupy a dominant position, promoting the healthy and standardized development of the industry.

9. Conclusion

The Automatic Aluminium Spacer Bar Bending Machine, as the core equipment of the modern insulating glass production line, has realized the transformation of aluminium spacer bar processing from manual and semi-automatic to fully automatic and intelligent, which is of great significance for improving the processing precision, production efficiency and product quality of insulating glass. It integrates mechanical transmission, servo control, numerical control system and sensing detection technology, with ultra-high bending precision, high production efficiency, low production cost and strong flexibility, and has become an indispensable key equipment in the architectural glass deep processing industry.

At present, the industry is in a period of rapid development of intelligent and digital upgrading, and is facing both opportunities such as the expansion of downstream market demand and the breakthrough of core technologies, as well as challenges such as technical bottlenecks and market competition. In the future, equipment manufacturers need to increase R&D investment, break through the technical barriers of core components, improve the level of intelligence and customization, and improve the after-sales service system; insulating glass processing enterprises need to accelerate the pace of automation transformation, and select appropriate bending equipment according to their own production needs to improve the overall competitiveness of the enterprise.

With the continuous progress of technology and the continuous upgrading of industrial demand, the Automatic Aluminium Spacer Bar Bending Machine will play a more important role in the global architectural glass industry, and promote the high-quality development of the energy-saving building industry with more intelligent, efficient and stable performance.