KAIWEI touts precision PU gasket dispensing system for 2 mm to 60 mm seal strips

Shanghai Kaiwei Intelligent Technology says its PU gasket dispensing machines use precision screw metering, closed-loop temperature control and anti-drip valves to improve seal strip consistency across industrial sealing jobs. The company also lists certifications, production capacity and applications spanning electrical enclosures, automotive parts and explosion-proof equipment.

Why it matters: - KAIWEI’s dispensing architecture targets more consistent polyurethane foam seals, which can affect enclosure protection, material waste and production repeatability. - The system is positioned for industrial uses that depend on dust-proof, waterproof and explosion-proof sealing. - The seal strip range of 2 mm to 60 mm covers both fine electronics and heavier enclosure gasket applications.

What happened: - Shanghai Kaiwei Intelligent Technology (Group) Co., Ltd. detailed a PU gasket dispensing machine platform built around precision screw metering, closed-loop temperature control and anti-drip wear-resistant valve bodies. - The machines are automated form-in-place gasket systems that mix two-component polyurethane adhesive and dispense a continuous foam seal strip onto workpieces. - KAIWEI is a state-level high-tech enterprise founded in 2004 and headquartered in Shanghai.

The details: - The metering pump uses A3 cc/r for component A and B0.6 cc/r for component B, with a mixing ratio adjustable from 1:1 to 10:1. - The dual-pump setup is designed to control volumetric dispensing of isocyanate and polyol, which affects foam cell structure and seal density. - KAIWEI offers two mixing head models, KW800 and KW-900, depending on seal geometry. - The KW-900 handles seal strip widths of 2–10 mm and 10–60 mm. - The KW800 handles seal strip widths of 4–30 mm. - Both mixing heads use high-pressure water cleaning, which eliminates solvent waste. - The material control system can include water temperature control to hold raw material tanks at a user-defined setpoint. - Each component tank holds 40 L. - Tank A is agitated and Tank B is not, which is intended to prevent component separation. - The system supports manual or automatic air charging and filling. - The KW-526 uses a 6-axis linear robot arm and runs up to 12,000 mm/min. - The KW-523, KW-523A and KW-520A/B use 3-axis linear robot arms with a maximum speed of 1,200 mm/min. - Guide rails come from AIRTAC, and servo motors can come from Xinje, ABB, Fuji or Panasonic depending on configuration. - The controller combines a motion control card, teach pendant and PLC, with a 15-inch touch screen HMI. - The setup supports closed-loop path correction for complex contours on electrical enclosures, filters and automotive parts. - The anti-drip design reduces material waste at the start and end points. - Machine body options include carbon steel, stainless steel 304 or aluminum alloy. - Power options are 220 V or 380 V. - Total power is 4 kW or 5.5 kW. - The system requires compressed air at 6 bar or higher with an oil-water separator.

Between the lines: - The product pitch leans on process control, which is often what separates acceptable seals from high-yield seals in factory production. - The broad certification list suggests KAIWEI is aiming at export markets and regulated applications, not just general-purpose dispensing. - The combination of custom robot arms, temperature control and multiple mixing heads indicates the platform is built to span different throughput and geometry requirements.

What's next: - KAIWEI says it supports OEM and ODM customization across color, material, automatic feeding, plasma treatment, logo design, safety grating, three-component dispensing and other options. - The company says monthly output reaches 2,000 sets, with a lead time of 7 days and a minimum order of 1 set. - Each unit undergoes 100% quality testing. - The company lists applications in electrical control panels, distribution boards, anti-explosion boxes, air filters, purification room doors, automobile fittings, battery covers and LED lighting enclosures. - KAIWEI cites a U.S. automotive OEM case record in which 20 units were deployed in a paint shop and delivered IP66-rated waterproof and dust-proof sealing over two years. - Contact details listed in the release include Wendy, info@kaiwei-sh.com, 13761986986 and the company website.

The bottom line: - KAIWEI is marketing a highly configurable PU gasket dispensing platform built for precision sealing, industrial compliance and multi-market deployment.