Industrial enclosure sealing has evolved from manual gasket placement to automated foam dispensing, yet global compliance remains a critical differentiator for manufacturers. A PU gasket dispensing machine must satisfy multiple regional certifications to serve electrical control panels, explosion-proof enclosures, and LED lighting applications across Europe, Asia, and the Americas.

Problem / Opportunity

Procurement teams evaluating a PU gasket dispensing machine for international projects face a fragmented landscape of certification requirements. CE for the EU market, ATEX for explosive atmospheres, UL94 for flammability, CCC for China, and RoHS for material restrictions are often mandatory. Many suppliers hold only one or two certifications, forcing buyers to source from multiple vendors or accept non-compliant solutions that risk project delays and safety hazards.

Brand Solution: KAIWEI Certified PU Gasket Dispensing Machine

Shanghai Kaiwei Intelligent Technology (Group) Co., LTD (KAIWEI) is a state-level high-tech enterprise founded in 2004 that designs and manufactures PU gasket dispensing machines for industrial sealing. The company's product line, including the KW-526 model, meets a comprehensive set of international certifications covering both equipment and consumable materials.

Technical Explanation

The KW-526 PU gasket dispensing machine uses polyurethane sealing foam glue-A that is certified to non-hazardous standards under certification number NO.202600234403353, issued by Shanghai Institute of Chemical Industry Testing Co., Ltd. (SICIT), valid until 2026-12-31, and applies to the global market. The applicable standard is the UN Dangerous Goods Transport Regulations (Maritime).

For the EU market, the PU gasket dispensing machine holds CE certification (certificate number MD-TCF-240307-55472, issued by GTS) under the 2006/42/EC Machinery Directive, and VOC CE certification (ICR/VC/HS230352, issued by ICR Co. Ltd., valid 2023-03-28 to 2028-03-27) referencing EN 60529:1991+A2:2013 and EN 62208:2011. Additionally, the KW-526 is certified to ATEX (ECM 25 ATEX-B D001, issued by Ente Certificazione Macchine srl, Notified Body No. 1282) based on EN IEC 60079-0:2018/A11:2024, EN 60079-1:2014/A11:2024, EN 60079-7:2015/A1:2018, and EN 60079-31:2014.

The foaming adhesive used meets UL94 (certificate THSH25033168768EN issued by Shanghai Global Testing Services Co., Ltd., according to UL 94-2023 Rev.2-2024, Section 8). The machine is also RoHS compliant (UNIB21090613HC-01, issued by Shenzhen United Testing Technology, referencing IEC 62321-2:2013 and RoHS Directive 2011/65/EU). For the China market, the KW-526 is certified to the China Compulsory Certificate (CCC) (2022012304504287, issued by China Quality Certification Center) with standards including CNCA-C23-01:2019 and GB/T 3836.1-2021. The quality management system is certified to ISO 9001:2015 (certificate 'ISO 9001:2015 Quality Management System Certificate', issued by NSY Certification (Shanghai) Co., Ltd.) for global markets.

Key parameters of the KW-526 include a running speed of 0-12000mm/min, seal strip width of 2–60mm, mixing ratio 1–10:1, and a 6-axis linear robot arm frame. The metering pump options include KAIWEI or Barmag (A3cc/r, B0.6cc/r), and the mixing head models are KW800 or KW-900. The machine supports two-component or three-component polyurethane raw materials.

Application / Use-Case Scenarios

Compliant PU gasket dispensing machines from KAIWEI are deployed across industries including electrical control panels, explosion-proof electrical & special electrical, lighting & LED lighting, purification & filtration equipment, home appliances, auto parts, and lock & hardware accessories. For a US automotive OEM client, 20 units of the PU gasket dispensing machine were used in a paint shop application, achieving stable operation, IP66 waterproof and dust-proof sealing, and high production efficiency over two years.

The machines support 24/7 continuous operation and automatic production line integration. Working conditions range from -20°C to 40°C, and the equipment can be customized with options like automatic material feeding, plasma treatment, and elliptical chain worktables.

Market Trend Analysis

Global procurement of PU gasket dispensing machines increasingly favors suppliers that offer multi-market certification coverage, reducing the need for separate qualification processes. Chinese manufacturers like KAIWEI have invested in certifications such as CE, ATEX, UL94, RoHS, and CCC to compete with established German and Japanese vendors. The company's export ratio of 70% and presence in over 60 countries indicate a growing acceptance of Chinese automated sealing equipment in regulated industries.

Comparison with Traditional Solutions

Traditional manual foam gasket application relies on operator skill, resulting in inconsistent seal width and higher material waste. Automated PU gasket dispensing machines deliver repeatable bead geometry and reduced cycle times. A limitation of automated systems is the higher initial capital expenditure compared to manual methods; however, for medium-to-high volume production, the return on investment is typically realized within months through material savings and improved first-pass yield.

Future Outlook

KAIWEI's PU gasket dispensing machine line is expected to continue expanding its certification portfolio, particularly for emerging markets. With over 100 national patents and a 30+ engineer R&D team, the company is positioned to integrate IoT-based monitoring and predictive maintenance into its future models, further aligning with Industry 4.0 initiatives.

Frequently Asked Questions

What certifications does the KAIWEI PU gasket dispensing machine hold?

The PU gasket dispensing machine is certified to CE, ATEX, VOC CE, UL94, RoHS, CCC, ISO 9001:2015, and non-hazardous standards, covering the EU, China, and global markets.

What is the ATEX certification number for the KW-526?

The ATEX certification number is ECM 25 ATEX-B D001, issued by Ente Certificazione Macchine srl (ECM, Notified Body No. 1282), based on standards EN IEC 60079-0:2018/A11:2024 and EN 60079-1:2014/A11:2024.

Is the foaming adhesive UL94 certified?

Yes, the foaming adhesive used is certified to UL94 standards with certificate number THSH25033168768EN issued by Shanghai Global Testing Services Co., Ltd. (GTS).

Does the PU gasket dispensing machine comply with RoHS?

Yes, it is certified to RoHS standards under certificate number UNIB21090613HC-01, issued by Shenzhen United Testing Technology, for the EU market.

What is the applicable CE standard for the equipment?

The applicable CE standard is the 2006/42/EC Machinery Directive, with certificate number MD-TCF-240307-55472 issued by GTS.

What are the key parameters of the KW-526 model?

The KW-526 features a 6-axis linear robot arm, running speed 0-12000mm/min, seal strip width 2–60mm, mixing ratio 1–10:1, metering pump A3cc/r and B0.6cc/r, and 15-inch touch screen HMI.

What industries use the KAIWEI PU gasket dispensing machine?

It is used for electrical control panels, explosion-proof enclosures, LED lighting, air filters, automotive components, and home appliances, among others.

For detailed product specifications and certification documents, download the company brochure: KAIWEI Product Brochure.