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two-component polyurethane (PU) glue spray machine for sandwich panel production lines
Honeycomb panel PU spraying machine for precise two-component polyurethane adhesive application. Designed for honeycomb panel bonding and production lines, featuring controlled glue metering, mixing and uniform spraying to improve bonding consistency and production efficiency.
Two-Component PU Glue Spray Machine for Sandwich Panel Production Lines
The Two-Component Polyurethane (PU) Glue Spray Machine is an industrial adhesive application system designed for sandwich panel manufacturing. It meters, mixes and sprays two-component polyurethane adhesive onto designated panel surfaces to support bonding between facing materials and insulation cores.
Designed for integration into sandwich panel production lines, the system can be configured to deliver a consistent adhesive application pattern according to panel width, line speed, adhesive properties and production requirements. The A and B components are supplied separately, accurately metered and mixed before being distributed through a suitable spraying system.
This 2K PU glue spraying solution can be configured for compatible sandwich panel materials, including PU, PIR, EPS, mineral wool (rock wool), XPS and phenolic insulation cores. It is suitable for applications involving metal facings and other compatible panel substrates.
With configurable metering, mixing, spraying and automation functions, the system helps manufacturers improve adhesive distribution, reduce manual application and support repeatable bonding quality in continuous or semi-automatic panel production processes.
Key Features
- Two-Component PU Metering: Independently meters Components A and B according to the adhesive manufacturer’s specified mixing ratio.
- In-Line Mixing: Combines the two components through a compatible static or dynamic mixing system before spraying.
- Uniform Adhesive Application: Configurable spray patterns help distribute adhesive across the required bonding area.
- Production-Line Integration: Designed for integration with compatible sandwich panel manufacturing lines.
- Adjustable Spray Parameters: Spray width, flow rate and application settings can be configured according to panel specifications and line speed.
- Wide Panel Material Compatibility: Suitable for qualified adhesive systems used with PU, PIR, EPS, rock wool, XPS and phenolic insulation panels.
- Automated Operation: Optional PLC control, production-line synchronization and recipe management.
- Material-Specific Configuration: Pump, valve, nozzle and mixing technology can be selected according to adhesive viscosity and reactivity.
- Reduced Manual Handling: Automated metering and spraying can reduce repetitive manual adhesive application.
- Customized System Design: Equipment layout and spraying configuration can be adapted to panel width, production capacity and factory requirements.
Working Principle
The two polyurethane adhesive components are stored separately in compatible material supply units to prevent premature mixing.
Step 2 – Material Conditioning
Where required by the adhesive specification, material temperature, pressure and circulation conditions are controlled to maintain suitable processing properties.
Step 3 – Precision Metering
The metering system delivers Components A and B at the required ratio and flow rate.
Step 4 – Mixing
The two components enter a compatible mixing unit and are blended before application.
Step 5 – Adhesive Spraying
The mixed adhesive is applied to the designated facing or core surface through a suitable spray head or nozzle arrangement.
Step 6 – Panel Lamination
The coated materials proceed through the panel production process, where the facing sheets and insulation core are assembled and bonded under the specified processing conditions.
Step 7 – Curing and Finishing
The panel continues through the required pressing, curing, cutting and finishing stages according to the production-line design and adhesive system.
Technical Specifications
| Item | Specification |
|---|---|
| Equipment Type | Two-Component PU Glue Spray Machine |
| Application | Sandwich Panel Production Lines |
| Material System | Two-Component Polyurethane Adhesive |
| Component Supply | Separate A and B Supply |
| Metering System | Configurable Precision Metering Pumps |
| Mixing Method | Static or Dynamic Mixing, Depending on Configuration |
| Application Method | Configurable Spray Head / Nozzle System |
| Spray Width | Customizable According to Panel Width |
| Flow Rate | Configurable According to Production Requirements |
| Mixing Ratio | According to Adhesive Manufacturer’s Specification |
| Control System | Optional PLC and Touchscreen HMI |
| Line Integration | Optional Production-Line Synchronization |
| Compatible Panel Types | PU, PIR, EPS, Rock Wool, XPS and Phenolic |
| Customization | Available According to Line Layout and Process Requirements |
Applications
Advantages
Why Choose Our 2K PU Glue Spray Machine?
Consistent Adhesive Distribution
A configurable spraying system helps achieve repeatable adhesive coverage across the designated bonding area.
Accurate Two-Component Metering
Independent metering of Components A and B helps maintain the required mixing ratio.
Improved Production Efficiency
Automated adhesive preparation and spraying can reduce manual operations and support continuous manufacturing workflows.
Flexible Production-Line Integration
The system can be adapted to different panel widths, conveyor arrangements, production speeds and automation requirements.
Reduced Material Waste
Controlled flow and spray parameters can help reduce excess adhesive when properly matched to the panel design and bonding process.
Application-Specific Engineering
Pump technology, mixing units, spray heads and cleaning arrangements can be selected according to the adhesive’s chemical properties and process requirements.
Consistent Bonding Process
Repeatable adhesive application supports process stability, while final bond quality depends on adhesive compatibility, substrate preparation, pressing and curing conditions.
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