Automatic Insulating Glass Production Line

1). Making double IG units

2). Making triple (3-layer) IG units

3). Making low-e IG units

4). Making four-sides IG units

5). Making shaped IG units

6). Filling argon gas automatically

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Product Details


LIJIANG production line adopts the latest technology, its main purpose is to create high-end quality, to provide customers with the latest production technology, improve production efficiency, save production costs and produce maximum benefits.

Now LIJIANG mainly has two kinds of IG line with different two different technologies. One (Picture 1) uses transfer wheels to transport glass, and the other (Picture 2) is a new technology that uses air-floating technology to transport glass. This new technology is to prevent the glass from being contaminated by wheels and leaving traces, so new technology is used to improve the IG production’s high quality. 

Automatic Insulating Glass Production Line

Detailed description

1. Transfer wheels  VS  air-floating technology 

The front and back transfer wheel are all moved, all actively transferred. It can guarantee the big and thick glass pass through smoothly.

The new air – floating technology uses air to support glass and transfer glass. When glass is washed clearly from the washing machine, using air to transport the glass, it won't be contaminated. Ensure that the produced insulating glass is of the highest quality.

Transfer wheels  VS  air-floating technology


2. There is the Low-e glass sensor in the washing machine

This sensor is installed before washing machine. It can automatically recognize Low-e glass surface fast and precisely, preventing the glass from dropping Low-e surface.

The washing machine.jpg  washing machine.jpg


3. The washing machine uses 304 stainless steel materials

The whole washing and drying section adopt 304 stainless steel materials, including the plate and interior spare parts.

The thickness plate

The thickness plate can up to 4mm and the interior plate can be 8mm.The equipment performance is better and service life is much longer.

4. The washing machine uses six soft (Low-e) brushes with the 01mm diameter only.

It has 6 brushes which are all soft brush, can wash low-e glass, flat glass, tempered glass and so on. It has a diameter of less than 0.1mm bristles, never damage glass, especially for low-e glass.

01mm diameter

5. Using Europe's advanced anti-noise system to create a good working environment for employees

The noise can be controlled below 90 decibels by using nylon gear and sponges.

 Using Europe's advanced.png  Using Europe's advanced.png


6. Water heating system and water filter system

As different countries have different water quality, in order to ensure that the glass is washes clearly enough, adopting air heating system, to use soft water to wash glass. What’s more, using water filter system to make water recycling, save water and keep the water clear.

Water heating system.png  Water heating system.png


7. The special structure inside the washing machine can automatically recognize glass thickness. Allowing different thicknesses of glass to be transferred quickly, increasing production speed. According to the test, it takes only 22s to produce a 1m*m insulating glass.

1). There is a universal joint device, when the glass thickness was changed, the wind knife will move forward and backward to adjust the distance so that the relative distance between the wind knife and the glass is constant, so as to avoid damage to the glass due to the changes of the glass thickness.

inside the washing machine.png

2). There are chain gears on both sides of the bottom of the glass to actively transfer the glass which can keep a fast speed, not only the large size, small size glass can also be passed quickly.

chain gears on both sides.png

8. The pressing box uses servo motor and timing belt to support pressing IG units.

Servo motor can be accurately calculated the thickness of the glass and aluminum spacer. Compared with traditional hydraulic station, servo motor can guarantee the precise working pressure and protect the glass from damage, at the same time increasing the working speed.

Timing belt is jagged, making the pressing more accuratly.

Servo motor.png

9. It is the first one in China to use adjustable points to ensure that the platen will never deform.

We adopt CNC technology into the pressing board. We designed the adjustable points inside the pressing board to keep the back plate straight all the time. In China, except LIJIANG, no one can guarantee that the pressing board will remain vertical and straight all the time after used 10 or 20 years. However, we solve this problem already.

CNC technology.png

10 . Energy saving of pressing box

The pressing box adopts 3 micro switches, which divide the pressing part into 4 regions.

When each micro switch receives the signal, it will add a part of the working area. When the corresponding micro switch is not touched, the region does not work.

When glass L  1.5m,   Region 1 works.

When glass L =1.5m-2.3m,   Region 1 & Region 2 work.

When glass 2.3m < L < 3.2m,   Region 1, Region 2 & Region 3 work.

When glass 3.2m = L  4m,   All Region work together.

What’s more, the two sides and bottom of the pressing box will be sealed to ensure the inflating effect. It can save much argon gas and electricity power.


11.  Automatic High - speed filling argon gas  

The IG line fills argon gas with 22s only for one piece of 1m*1m double glazing glass. Can set and display the argon gas value on the screen directly. From the screen, we can observe the argon gas content and filling speed intuitively.

When two pieces of glass are closing, it will start to fill argon gas from the bottom of the glasses. When the previous set value is reached, inflation will stop automatically.

 speed filling argon gas.png

12. Main functions

1). Making double IG units

2). Making triple (3-layer) IG units

3). Making low-e IG units

4). Making four-sides IG units

5). Making shaped IG units

6). Filling argon gas automatically

Insualting Glass.png

Technical data

Max. glass size


Min. glass size


Glass thickness


Insulating glass thickness


Glass washing speed


Glass conveyor speed


Washing brushes

3 pairs

Water supply

Water consumption:0.5t/h conductivity:40μs/cm

Air supply

Flow: 0.8m/min

Air pressure


Total power

3P 380V 50HZ 44.5KW






Electrical parameters




Transfer motor



Brush motor



Servo motor






Low voltage electrical appliance



Frequency converter



Micro Switch



Button and indicator light



touch screen



Intermediate relay



Water pump






Pneumatic Components



electric gauge



Photoelectric switch




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