KPD provides industrial adhesive application and coating solutions designed to support efficient manufacturing across panel production, composite bonding, and wood door finishing. Our solutions include 2-component PUR adhesive metering and application systems, designed to deliver accurate material proportioning, consistent adhesive distribution, and reliable bonding performance. For SPC honeycomb panel production, the adhesive application process helps achieve uniform coverage and stable bonding between panel layers. For composite panel manufacturing, 2-component PUR systems provide controlled metering and mixing of the adhesive components to support consistent production quality. For wood door manufacturing, suitable spray coating solutions help achieve uniform surface coverage and a consistent finish. With configurable application systems and automation options, KPD helps manufacturers optimize adhesive consumption, improve production efficiency, reduce material waste, and maintain consistent product quality. Solutions can be tailored to panel dimensions, adhesive properties, production speed, and specific manufacturing requirements.
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.
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.
1.Automatic edge finding: (automatic recognition) automatically adjusts the glue spraying position according to the size and length of the board;
2. Automatic glue spray amount: (automatically adjusts the speed of glue dispensing according to the size of the board and the conveying speed);
3. Automatic feeding: When the glue volume in the glue barrel is lower than the set lower limit, the glue adding process will be automatically started.
4. One-click start: Eliminate the tedious preparation work before starting up, and realize automatic operation to working status with one click;
5. Glue heating: The equipment is equipped with glue heating and heat preservation functions, so that the glue is not restricted by ambient temperature and region, allowing customers to choose the brand of glue more freely;
6. Anti-sedimentation mixing: A glue barrel is equipped with an intelligent control mixing device to prevent precipitation or stratification caused by long-term stasis of glue, and to ensure that the glue is heated evenly when heated.
7. Visual mixing: The equipment adopts imported dynamic mixing tubes and is matched with Taiwan’s high-speed brushless motor to achieve adjustable mixing speed and direct viewing of the mixing status to ensure uniform mixing;
8.Disassembly-free automatic cleaning: The equipment adopts a high-pressure gas-liquid automatic switching cleaning device. There is no need to disassemble the glue spray head, achieving true disassembly-free cleaning in the industry, and the cleaning effect is visible to the naked eye;
9.Patented glue-controlled suction valve: The equipment is equipped with our company’s patented glue-controlled anti-drip suction valve, which can open the glue in time and close the glue quickly with suction adjustment;
10.Special metering pump: The equipment adopts a special polyurethane high-flow and wear-resistant precision metering pump , which can accurately control glue and adjust the flow rate to achieve an accuracy of ±0.5%, effectively avoiding inaccurate proportions and greatly improving the product qualification rate;
1. Adhesive Supply and Heating: Part A and Part B are stored in separate tanks. The main resin tank is equipped with heating and agitation systems to prevent sedimentation and separation. The curing agent tank may include an anti-crystallization function to maintain stable material conditions.
2. Metering and Ratio Control: Precision metering pumps deliver Parts A and B according to the preset mixing ratio, commonly adjustable from 1:1 to 5:1. Metering accuracy can reach ±1% to ±2%, depending on the system configuration. Accurate ratio control is essential for consistent adhesive performance and material cost management.
3. Dynamic Mixing: The two components enter a dynamic mixing head, where they are thoroughly blended before being delivered to the curtain coating head. Some configurations also include vacuum degassing to reduce residual air bubbles.
4. Curtain Coating: The coating head moves horizontally under the control of a reciprocating mechanism, while the conveyor transports the substrate longitudinally. The mixed adhesive falls onto the substrate as a continuous curtain or controlled stream. Typical application rates range from 120 to 350 g/m², with adjustable dispensing flow rates of 5–75 g/s, depending on the material and application requirements.
5. Automatic Cleaning and Material Replenishment: The system can support material replenishment during production and may include a one-touch cleaning function. Rapid cleaning of the mixing section helps prevent cured adhesive from blocking the mixing head and delivery lines.
The curtain coating system mainly consists of three functional assemblies:
Curtain Head Reciprocating System: Controls the horizontal movement of the coating head to ensure uniform coverage across the substrate.
Conveyor System: Transports panels or workpieces at a controlled speed, typically adjustable from 0 to 8 m/min, depending on the configuration.
Adhesive Supply System: Includes material tanks, metering pumps, delivery pipelines, metering valves, and the mixing head for accurate two-component material delivery.
| 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 |
Our industrial glue spreading machines are designed for uniform adhesive application across a wide range of panel manufacturing and bonding processes.
✅Sandwich Panel Manufacturing
✅Honeycomb Panel Production
✅MGO Board Manufacturing
✅Plywood and Wood Panel Production
✅Insulation Board Manufacturing
✅Furniture and Decorative Panel Lamination
✅Composite Panel Manufacturing
✅Door and Wall Panel Production
✅Building Material Bonding
✅Industrial Panel Lamination
The machine configuration can be customized according to the substrate material, adhesive type, required coating width, glue application amount, and production speed.

KPD provides industrial adhesive application and coating solutions for panel manufacturing, composite bonding, and wood door finishing. Our solutions include 2-component PUR adhesive application systems and configurable coating equipment.
A 2-component PUR adhesive application system meters and mixes two adhesive components in a controlled ratio before applying the mixed adhesive to the workpiece. It is designed to support consistent bonding in industrial panel and composite manufacturing.
KPD can provide adhesive application solutions for suitable honeycomb panel production processes. The equipment configuration depends on panel structure, adhesive properties, required coating pattern, and production speed.
The system is designed for compatible two-component polyurethane adhesives. Material viscosity, mixing ratio, temperature requirements, and curing characteristics should be confirmed before selecting the configuration.
Automatic metering and controlled mixing help maintain consistent adhesive application. Depending on the production setup, automation can reduce manual handling, improve process repeatability, and help minimize adhesive waste.
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