This HRP-02 slot coating hot melt gun adopts dedicated slot die structure specially designed for uniform flat strip scraping coating. Controlled by a fast-response 24 VDC solenoid valve, it supports a maximum operating speed over 3500 cycles per minute to match medium and high-speed automated assembly lines. Equipped with Ni120 high-precision temperature sensor, its max working temperature reaches 200°C (392°F) to maintain stable heating and avoid glue carbonization during long continuous operation.

It bears adhesive viscosity up to 10,000 mPa.s, compatible with medium and high-viscosity EVA and pressure-sensitive hot melt adhesives. The maximum scraping width hits 25mm, realizing full-width even glue layer without uneven thickness or missing coating. It runs stably under air pressure of 3.1–5.5 bar (80–145 psi) and supports real-time coating thickness and width adjustment without complicated disassembly, greatly shortening mold change and debugging time.

With integrated compact metal body, it supports flexible horizontal and vertical mounting on folder gluers, composite laminators and automatic jigs. It adopts standard 220V ±10%, 50/60Hz wide-frequency power supply to fit global factory power grids. Internal valve core is made of wear-resistant alloy, ensuring stable mechanical performance, low failure rate and extended service life under long-term high-frequency intermittent coating.

The core advantage of slot coating gun lies in its slot die scraping design, which produces extremely uniform continuous flat glue strips, perfectly solving uneven coating issues of traditional dot or line glue guns and significantly reducing defective products caused by inconsistent glue thickness. It supports real-time parameter adjustment directly on the gun body, eliminating tedious disassembly and calibration work and improving production line switching efficiency.

With high cycle speed over 3500 times per minute, it can keep pace with medium-high speed packaging and composite production lines to boost overall output. It has wide adhesive compatibility, handling high-viscosity hot melt glue up to 10,000 mPa.s to cover more composite and lamination processes. The compact modular structure is easy to install on various automation equipment without occupying extra workshop layout space.

Wear-resistant internal components lower long-term maintenance frequency and spare part cost. Precise constant temperature control prevents glue aging and blockage, extending continuous operation hours. Compared with separate multi-line dispensing guns, one slot coating gun replaces multiple single-line nozzles, simplifying pipeline layout and lowering overall equipment investment for customers focusing on surface laminating and full-width edge coating processes.

The HRP-02 slot coating gun is a specialized dispensing accessory for continuous flat strip hot melt coating, widely used in packaging printing, composite lamination, furniture and hygiene product industries. In packaging field, it handles full-edge scraping bonding for gift boxes, cosmetic cartons and food packaging boxes, forming neat uniform glue layers on coated paper and UV-laminated substrates without scratching printed patterns, matching medium-speed folder gluer production lines.

It dominates fabric and non-woven composite processes such as mattress edge laminating, shoe surface material fitting and filter element compounding, providing full-width even adhesive layers to enhance composite firmness and surface flatness. It also applies to thin plate veneer lamination, small electronic part surface bonding and disposable hygiene material edge sealing.

Compatible with both gear-type and pneumatic heating pump main machines, it can form multi-station synchronous coating systems by matching multiple guns. Its flexible mounting structure fits automatic jigs and roll-to-roll laminating equipment, ideal for factories with mass continuous lamination demands. It is the optimal choice for manufacturers requiring consistent full-width coating instead of scattered dot or thin-line gluing.