Butyl Sealant Extruder Machine

1. Product Description

The Butyl Sealant Extruder is a key machine used in the Insulated Glass Unit (IGU) production line. It applies a uniform layer of butyl sealant onto both sides of the aluminum spacer, ensuring excellent moisture barrier and long-term sealing performance for insulated glass.
This butyl coating machine features precise temperature control, adjustable coating speed, and stable extrusion, making it ideal for glass factories of all sizes.

Automatic Butyl Sealant Extruder Machine for IGU Spacers

The Automatic Butyl Sealant Extruder Machine is designed to apply hot-melt butyl sealant to both sides of aluminum spacer bars during insulating glass unit production.

Butyl sealant forms the primary sealing layer of an IGU. A continuous and uniform coating helps prevent moisture penetration and supports the long-term sealing performance of double and triple insulating glass units.

This machine combines touchscreen control, servo transmission, adjustable coating parameters and three operating modes. It is suitable for insulating glass manufacturers that require stable coating quality, flexible production and reduced operator dependence.

Precise Butyl Coating

The machine heats the butyl sealant to the required operating temperature and applies it evenly as the aluminum spacer passes through the coating section.

The adjustable working speed ranges from 0 to 45 m/min. Operators can select a suitable speed according to the spacer specification, sealant condition and required production capacity.

Stable hydraulic and pneumatic pressure help maintain continuous sealant extrusion and reduce common coating problems such as uneven thickness, interrupted coating or excessive sealant application.

Wide Aluminum Spacer Range

The machine is suitable for aluminum spacer bars from 6 to 40 mm wide. This broad processing range allows manufacturers to use one machine for different IGU structures and spacer specifications.

The automatic width adjustment function helps reduce setup time when changing between production orders.

Intelligent Control System

An air-liquid booster pump, touchscreen controller and precision transmission system are integrated into the machine.

The touchscreen allows the operator to adjust and monitor important production settings, including:

• Coating speed

• Heating temperature

• Spacer width

• Operating mode

• Machine status

The five-speed transmission control provides additional flexibility for different spacer sizes and production conditions.

Three Operating Modes

The machine supports full-automatic, semi-automatic and manual operation.

Full-automatic mode is suitable for continuous production and helps reduce manual intervention.

Semi-automatic mode provides a balance between automatic processing and operator control.

Manual mode can be used for equipment adjustment, testing, maintenance and special production requirements.

These operating options make the machine suitable for both experienced operators and employees who are learning the coating process.

Stable Servo Transmission

A servo motor and precision transmission system provide stable spacer movement during coating.

The machine is designed for continuous, fault-free operation of at least 500 hours under appropriate operating and maintenance conditions. Its heavy-duty 480 kg construction also helps reduce vibration during high-speed production.

Material and Energy Efficiency

The coating system is designed to achieve a butyl sealant utilization rate of at least 98%. Accurate sealant application helps reduce excessive coating and unnecessary material consumption.

The optimized heating and drive systems can reduce energy consumption by approximately 15% compared with conventional machine designs.

Actual sealant and energy savings may vary according to production speed, spacer dimensions, sealant type and operating settings.

Optional Configurations

The machine can be customized with additional functions, including:

• CCD vision positioning system

• Automatic spacer cutting unit

• Multi-station coating modules

• Customized coating-width adjustment

• Production-line connection options

The final configuration can be selected according to the customer’s spacer specifications and IGU production requirements.

Technical Specifications

Working Process

1. Add the specified butyl sealant to the glue tank.

2. Set the heating temperature according to the sealant requirements.

3. Select the aluminum spacer width and coating speed.

4. Choose automatic, semi-automatic or manual operation.

5. Feed the aluminum spacer into the guide system.

6. Apply butyl sealant evenly to both sides of the spacer.

7. Check the coating result before transferring the spacer to the next IGU production process.

Applications

The machine is suitable for:

• Double glazing production

• Triple glazing production

• Architectural insulating glass

• Window and door glass manufacturing

• Low-E insulating glass units

• Curtain-wall glass processing

• Complete IGU production lines

Installation Requirements

The machine requires a three-phase 380V power supply and a stable compressed-air source. The recommended air supply pressure is 0.8 MPa.

Before installation, sufficient operating and maintenance space should be reserved around the machine. Operators should receive training on temperature settings, pressure adjustment, sealant loading, cleaning and routine maintenance.