User Manual

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What is the Insulating Glass Production Line 


The insulating glass production line is a type of glass deep processing equipment, which is mainly used to process and make insulating glass.

Introduction to terms

The insulating glass production line is a type of glass deep processing equipment. It is mainly used to process and make insulating glass. The original glass pieces are cut and then entered into the insulating production line.

Mainly through washing, drying, making the spacer frames, filling with desiccant, first sealing (coating with butyl extruder sealant), Inspection, frame closing, tablet pressing, second sealing (polysulfide sealant or silicone sealant), and tablet unloading. The processed products are of high quality and the processing speed is very fast.

The insulating glass production line mainly has four sections: the glass loading and unloading section, the washing and drying section, the inspection section, and the plate pressing section. The four sections are all installed vertically at the same inclination angle. They are compact in structure, economical and practical, high in efficiency, and easy to maintain. The washing tank is made of stainless steel, and the transmission rollers are acid and alkali-resistant rubber rollers; the glass washing situation can be easily observed at any time through the organic glass window; the feeding section and the washing and drying section are driven by manual step-less speed regulating motors, and the glass is driven by the best the speed runs smoothly. The drying section uses a strong wind-inclined air knife to dry the glass surface. The inspection section is equipped with light tubes, which can check the washing quality of the glass; the combined section is equipped with glass positioning and aluminum frame positioning devices, which can complete the functions of glass positioning and aluminum frame positioning. The glass is supported and transported by the transmission rubber roller. The transmission roller is driven by the motor (roller section motor) through the frequency converter and the sprocket. The glass enters this section from the cleaning and drying section at a low speed. After passing the inspection, it accelerates to the next work. section to improve work efficiency; the frequency converter controls the running speed of the speed-regulating motor in this section, and the photoelectric switch controls the glass to enter the next working section. The washing waterway system of the insulating glass production line is a circulation system. The water tank is equipped with a constant temperature water heating device, and the water temperature can be automatically maintained within a reasonable range.

Water is drawn from the water tank by a water pump and sprayed onto the glass surface through the spray pipe. After cleaning the glass, it flows back to the water tank for recycling. If the water quality is poor, a water treatment device (prepared by the user) needs to be equipped. The water will enter the water tank after treatment and be recycled according to the above steps.

Airpath system: The fan passes through a pair of inclined air knives to dry the glass.

Installation conditions

The factory building where the insulating glass equipment is installed should have an air source and 380V/220V (50Hz) AC power three-phase four-wire power supply configuration, that is, three-phase live wire and one phase neutral wire; solid concrete floor; industrial tap water source, drainage ditch, and site clean and dust-free.

Types and differences of insulating glass production lines


Insulating glass production lines are divided into fully automatic, semi-automatic, airbag type, rotary type, and large plate type according to process, equipment, and functional characteristics. Each type has different characteristics, such as degree of automation, production efficiency, investment cost, and scope of application. Which type to choose needs to be evaluated based on product requirements, production scale, budget, and market demand.

The types and differences of insulating glass production lines are mainly divided according to their process flow, equipment configuration, and functional characteristics. The following are several common types of insulating glass production lines and their differences:

  1. Fully automatic insulating glass production line: This production line has a high degree of automation and can realize a fully automated insulating glass production process. It usually includes functions such as automatic loading, washing, glass centering, strips assembly, coated strips supply, edge sealing, and output. The degree of automation is high and the production efficiency is high, but the investment cost is also high.
  2. Semi-automatic insulating glass production line: This production line involves manual operations in some production links, such as glass centering, assembly, etc. It usually includes loading, washing, semi-automatic centering, strips assembly, coated strips supply, edge sealing, output, and other links. Compared with a fully automatic production line, the investment cost is lower, but the production efficiency is slightly lower.
  3. Airbag insulating glass production line: This production line uses airbag technology. During the assembly process, two pieces of glass are held up by airbags to maintain a constant distance between the two pieces of glass. It usually includes loading, washing, airbag assembly, coated strip supply, edge sealing, output, and other links. Compared with traditional methods, airbag technology can effectively improve production efficiency and product quality.
  4. Rotary insulating glass production line: This production line uses a rotating table. During the assembly process, the rotating table is used to center and connect two pieces of glass into insulating glass. It usually includes loading, washing, rotating assembly, coated strips supply, edge sealing, output, and other links. The rotating table method has high production efficiency and stability.
  5. Jumbo-size insulating glass production line: This production line is suitable for producing jumbo-sized insulating glass products and can meet the needs of the construction industry and engineering projects. It has the characteristics of large capacity and high production efficiency and is usually equipped with jumbo-sized, high-power glass processing equipment, such as jumbo-size panel washing equipment, jumbo-size panel assembly tables, etc.

These are the common types and differences of insulating glass production lines. The specific type of production line to choose needs to be comprehensively evaluated and selected based on product requirements, production scale, investment budget, and market demand.

What is the Insulating glass process production


Main production equipment: 

  1. Abrasive belt glass edge grinding machine 
  2. Glass conveyor equipment 
  3. Glass washing and drying machine 
  4. Glass inspection conveyor equipment 
  5. Aluminum frame positioning machine 
  6. Glass laminating machine 
  7. Glass flipping conveyor equipment 
  8. Rotating sealant table 
  9. Two-component sealant machine 
  10. Special inflator for insulating glass 
  11. Finished glass conveyor 
  12. Automatic aluminum strip bending machine 
  13. Automatic molecular sieve filling machine 
  14. Butyl extruder coating machine 
  15. Automatic aluminum frame conveyor machine

With the development of the glass deep processing industry and people's deepening understanding of the advantages and performance of insulating glass, the application scope of insulating glass is constantly expanding, in glass curtain wall buildings, train side windows, freezer display cabinet sliding windows, etc. In addition to being widely used, it has now begun to enter the homes of ordinary people. This is mainly due to the application of insulating glass, which not only improves the thermal and sound insulation effects of the building but also simplifies the structural design of ventilation and heating facilities. This not only reduces the cost of building decoration but increases the effective practical space in the building.

As the application fields of insulating glass continue to expand, people's quality requirements for insulating glass are getting higher and higher. How to seize the market development opportunities of glass deep processing and provide high-quality and reliable insulating proportions has become a problem that insulating glass manufacturers often study.

LIJIANG Glass first introduces the types of insulating glass and the five indicators in the insulating glass industry standards:

The classification

There are two common types of insulating glass currently on the domestic market:

Aluminum strip type insulating glass: This type of insulating glass was introduced in the United States in the 1980s and is relatively mature, but the processing technology is complex.

Rubber strip type insulating glass: This type of insulating glass has just started in developing countries. It was jointly developed by FENZI and Swiggle Super Spacers. However, the processing technology is relatively simple, so it has a wide range of applications and is promoted quickly.

Five indicators in the insulating glass industry standards

  • Initial dew point
  • Sealing test
  • UV irradiation
  • High temperature and humidity
  • Climate cycle test

According to the testing standards of the insulating glass industry, how to arrange the production of glass deep processing to meet the processing requirements of insulating glass? Since the two types of insulating glass have many similarities in the process flow, let's first briefly analyze their common process flow.

Glass cutting and blanking

The original glass is generally colorless float glass or other colored glass, sunshade glass, tempered glass, or laminated glass, and the thickness is generally 3mm~12mm. The above glass must comply with the regulations on first-class and superior glass in the insulating glass industry standards. , it can be used only after passing the inspection. Glass cutting can be done by hand or machine, but the size requirements should be ensured. During this cutting process, workers should always pay attention to the fact that there should be no scratches on the glass surface, that the inner quality should be uniform, and that there should be no obvious defects such as bubbles or lanes.

Glass washing and drying

Glass washing must be carried out with automated equipment because manual washing cannot guarantee the washing quality. Before washing, check that the glass is not scratched. To ensure the adhesion between the sealant and the glass, it is best to use deionized water. In addition, to ensure multiple recycling of washing water and save water resources, the water can be filtered to ensure long-term use. The washed glass must pass a light inspection to check whether there are water droplets, water stains, and other stains on the glass surface; if there are water droplets, water stains, and other stains, the machine operating speed, heating temperature, air volume, and brush clearance need to be inspected. Adjust until perfect results are achieved. The washed glass should be assembled into insulating glass within 1 hour. In addition, it is necessary to ensure that there is no friction or scratch between the glass and the glass. It is best to have a semi-finished glass storage trolley at the production site to separate the glass sheets from each other.

Assembly of rubber strip type insulating glass and aluminum strip type insulating glass

Strip-type insulating glass assembly:

(1) Environmental requirements: The processing temperature of strip-type insulating glass should be between 10℃~20℃ in winter and between 20℃~30℃ in summer.

(2) Relative humidity requirements: Since the strip-type insulating glass desiccant is in powder form and the desiccant works slowly after being evenly mixed with butyl glue, the relative humidity of the strip assembly area should be kept low.

Aluminum strip type insulating glass assembly:

(1) Environmental requirements: The temperature should be between 10℃~30℃.

(2) Relative humidity requirements: This type of insulating glass has slightly lower requirements for relative humidity, which is sufficient under normal conditions.

However, it should be noted that the molecular sieve desiccant should be qualified products from regular manufacturers to ensure the effective use of the molecular sieve desiccant. It is best to use the molecular sieve desiccant within 24 hours after opening. Because polysulfide rubber has greater air permeability and poor sealing, double sealing is required. Generally speaking, for the bonding between insulating glass and spacers, butyl extruder coating is used as the first seal, which plays the role of isolating gas; polysulfide glue is used as the second seal, whose main function is bonding, and secondly. It's the air barrier effect. The practice has proved that the service life of single-pass sealed insulating glass is only about 5 years, while the service life of double-pass sealed insulating glass can be as long as 20 or even more than 40 years. Therefore, the development of double-pass sealed insulating glass is the general trend.

Glass tablets

When pressing strip-type insulating glass sheets, attention should be paid to aligning the edges of the sheets. When pressing, leave a small opening at the back to allow the gas after drying the molecular sieve to escape from the small opening, and then seal it immediately after pressing. At this point, the processing of strip-type insulating glass is completed.

For aluminum strip type insulating glass, after joining the sheets, there should be a distance of 5mm~7mm between the outer edge of the aluminum frame and the edge of the glass, which is used for applying the second sealant; and the polysulfide glue should be applied evenly along one side to prevent If bubbles are generated, scrape off the residue on the glass surface after coating. At this point, the processing of aluminum strip insulating glass is completed.

Placement of insulating glass

Whether the insulating glass is placed correctly or not will also have an impact on the final quality of the insulating glass, whether in production, transportation, or glass application. When storing insulating glass, first of all, the design requirements of the stacking rack must take into account the characteristics of the insulating glass. The stacking rack must have a certain inclination, but the bottom plane and the side should always maintain 90° to ensure that the two pieces of insulating glass are The bottom edge can be placed vertically on the stacking rack. Also note that the bottom of the glass should not be stained with oil stains, lime, and other solvents, as they can corrode the second sealant of the insulating glass to varying degrees, thereby affecting the sealing performance of the insulating glass.

Debugging method

1. Place the insulating glass production line lightly in the installation position, and place the positions of each section of the insulating glass production line in the correct order.

2. Level the fuselage. Adjust the height of the leveling bolts on the base of the machine so that the supporting surfaces of the transfer roller and the supporting nylon wheel are at the same height, the backing wheel on the inclined frame is coplanar, and each section is relatively parallel, and then tighten the nut.

3. Connect and tighten the parts that need to be connected between each section, and connect the transmission chain from the loading section to the washing and drying section. Place the wind fan and water tank correctly, and connect the air ducts and water pipes according to the water and air system diagrams.

4. Comprehensively check whether all fastener connections of the machine are loose due to transportation vibration, and tighten them one by one (especially whether the connections of each terminal block are loose).

5. The grounding wire should be a soft copper core yellow-green insulated wire with a cross-sectional area of not less than 4 square millimeters, and the grounding resistance should not be greater than 4 ohms.

6. Connect the air source and check whether the pipeline is smooth and damaged. The air source pressure requirement is 0.6~0.8Mpa.

7. Turn on the power and test whether the rotation direction of each motor is correct and whether the transmission sprockets of each section are flexible and stable.

8. Clean the entire machine and tidy up the work area.


With the continuous promotion and application of insulating glass, people's requirements for insulating glass are getting higher and higher. As glass deep processing practitioners, we should constantly improve the processing technology of insulating glass, strive to improve the technical level and product quality of glass, and promote the development of insulating glass in a higher, newer, and stronger direction.

How will the auto architectural glass processing be after 5 years?
10 years?...
  • The professional market analysis should be the first step. 
  • A feasibility report should be done with the labor cost, material cost, factory cost and consumptions, productivity, etc.
  • Accurate company management structure and system design.
  • Professional machinery plan and software setup. 
  • All the targets can be achieved, tracked, and monitored accurately if the above jobs are professionally done …

The LIJIANG Glass intelligent glass storage and sorting system can be connected to most ERP software on the market. It can be used offline with automatic loading and unloading of films, or it can be connected to a insulating glass production line to form an automated connection. The equipment can automatically detect the glass size or directly read the code identifies the size of the glass and can be paired and sorted according to the size. It can pair and distinguish double glass, triple glass, quadruple glass, laminated glass, Low-E glass, frosted glass, coated glass, and other glasses. It can be divided into pieces according to customers. It can be divided into pieces according to the process card, and the process card can be printed after the pieces are placed.

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The LIJIANG Glass insulating glass double-filling and double-plate pressing production line, which includes a feeding section, a washing and drying section, a washing and discharging section, a storage section, an inspection and framing section, a flat pressing feeding section, an inflatable plate pressing section and a flat pressing discharging section. The inflatable plate pressing section includes a front moving plate, a rear fixed plate, left and right sealing plates, a conveyor belt and an inflating mechanism. The inflatable plate pressing section can inflate and press two pieces of glass less than 3 meters in length at the same time as needed, or press an extra large plate of glass.

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The butyl extruder coating machine for insulating glass manufactured by LIJIANG Glass can quickly adjust the distance between the two coated heads to adapt to different specifications of aluminum spacer strips. It includes a frame and two independent sealant systems. Each sealant system includes a sealant extrusion cylinder and the sealant head is fixed relative to the sealant extrusion cylinder. The two sealant heads are juxtaposed with a certain distance to receive the aluminum spacer and apply butyl extruder coating on it. The frame is provided with a place for one of the coating systems to move The guide rail is used to adjust the distance between the two coated heads, and there is also a moving device that drives the coating system to move along the guide rail.

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Given the large number of coated glasses such as Low-E coated glass and solar control film used in the current insulating glass processing market, various films must be removed around the butyl-coated glass, otherwise the service life of the insulating glass will be affected. Generally speaking, mechanical removal of glass surface film is the first choice. The recommended parameters for the film removal wheel of LIJIANG Glass Automatic Low-E Glass Film Removal Delecting Machine are air pressure 0.8MPa ~ 1.2MPa, rotation speed 1800 ~ 1900 r/min;The grinding wheel is made of emery or stainless steel wire below 0.15mu (100 mesh). No traces remain on the surface after film removal. The development direction is to set up grinding wheels according to different film systems.

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The LIJIANG Glass Insulating Glass Sealing Robot Line adopts a large touch screen human-machine interface control system to realize automatic positioning of aluminum partition frames, automatic lifting and lowering of pressing, conveying, sealant coating, automatic timing heating and other functions. The equipment adopts advanced gas-liquid boosting technology to make the system pressure more stable and energy-saving. The system is equipped with an alarm system for running out of sealing, and a dual-group and dual-sealing supply configuration. Production will not be delayed during sealant replacement. The sealing head is adjustable within the range of 6-20mm and can be fine-tuned up and down.

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The LIJIANG Glass high-precision insulating glass aluminum strips bending machine includes a transmission mechanism and a bending mechanism. The transmission mechanism includes a driving wheel, two fixed wheels and two transmission chains; the two fixed wheels are uploaded in the horizontal direction through a transmission chain dynamically connected; the driving wheel is drivingly connected to one of the fixed wheels through another transmission chain; the bending mechanism includes a rotatable pressure wheel and a height adjustment device; the pressure wheel and the two fixed wheels are located on the same vertical plane, and Located above the middle of the two fixed wheels; the height adjustment device is installed above the pressure wheel and adopts a screw structure to adjust the height of the pressure wheel with high precision.

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The LIJIANG Glass insulating glass molecular sieve filling machine has a support frame fixedly installed in the middle of one side of the main body. A filling gun is fixed symmetrically above the support frame. A fixed seat is welded to the top and middle of the support frame. A fixed base is fixedly installed in the middle of the front end of the fixed base. The fixing frame has fixing slots in the middle of both sides of the fixing frame. An L-shaped push rod is movable inside the fixing slot. A movable pressure plate is installed on one side of the outer surface of the L-shaped push rod. This equipment prevents the filling gun from pushing the aluminum spacer up and down during filling, improves the overall stability of the aluminum spacer during filling, and thereby improves the overall filling efficiency of the aluminum spacer.

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Type: LJ3000/Customized
Intelligent Glass Storage and Sorting System
Type: LJBZ3060/LJBZ3370
Automatic Jumbo-size Double-filling and Double-plate Pressing Insulating Glass Production Line
Type: LJTB01/LJTB03D
High-speed Insulating Glass Butyl Extruder Coating Machine
Type: LJCM2030/LJCM2545/LJCM3370
Automatic Low-E Glass Film Removal Delecting Machine
Type: LJTJ2030/LJTJ2532/LJTJ3070/LJTJ3370
The Automatic Insulating Glass Sealing Robot Line
Type: LJZW2020/LJZW2020N
Automatic Multi-Storage Aluminum Spacer Bending Machine
Type: LJGZ2020D/LJGZ2020X/LJGZ2020S
Automatic Insulating Glass Desiccant Filling Machine

This LIJIANG Glass rotating sealant sealing table adopts forward and reverse rotation structure and can be operated freely. The whole equipment is made of welded square tubes with high strength and not easy to deform.The lifting, lowering and rotating foot valves are individually self-locking controlled to reduce misoperation. Insulating glass with different specifications can be operated flexibly and conveniently.

The main pump of the LIJIANG Glass two-component manual sealant applicator is driven smoothly by the hydraulic system; the fully enclosed curing agent glue path system prevents the curing agent from contacting with air and solidifying; the two-component proportioning structure is steplessly adjusted to meet accurate proportioning requirements; it adopts Internationally popular static reciprocating mixer, mixing more evenly.

The LIJAING Glass insulating glass sealant gun freezer includes a box shell, a low-temperature insulation tank, a high-temperature insulation tank, a compressor, and a fan installed on the shell wall. The insulation tank is connected to the compressor through a pipeline, and the top of the shell is equipped with Has a lid to ensure long-term temperature stability of the sealant gun.

The LIJIANG Glass insulating glass inert gas inflator equipment is used to inject inert gas inside the insulating glass to improve the heat insulation, sealing, sound insulation, energy saving and other properties of the insulating glass. It uses a gas purity analyzer imported from the United States and a gas sensor imported from Japan to ensure the stability of the inflator. The humanized appearance design makes the equipment beautiful and easy to operate. It is currently the most advanced insulating glass inflatable equipment.

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Type: LJZT02/LJTZ03
Manual Rotated Sealant Spreading Table
Type: LJST02A/LJST03
Manual Two-component Sealant Applicator Equipment
Type: LJSG01
Insulating Glass Sealant Gun Freezer Equipment
Type: LJCJ01/LJCJ02
Manual Inert Argon-Gas Inflator Equipment
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