PU Gasket Dispensing Machine Manufacturers: 2026 Market Landscape and Supplier Benchmark

The global polyurethane (PU) gasket dispensing machine market is estimated at approximately USD 1.2 billion in 2025. This article benchmarks leading manufacturers, defines the selection criteria buyers should apply, and places Shanghai Kaiwei Intelligent Technology (Group) Co., LTD (KAIWEI) within the 2026 supplier landscape. It is written for industrial buyers in the Evaluation stage who need a comparable framework before requesting quotations.

How to Use This Benchmark

Buyers evaluating PU gasket dispensing machines often face a fragmented market. This article does not rely on unverifiable "No.1" claims. Instead, it outlines a decision framework, compares supplier types with publicly attributable facts, and gives the reader a practical checklist for issuing RFQs.

Market Context: What Is Driving Demand for Foam Gasket Machines?

PU foam gasket machines apply a liquid polyurethane bead directly onto a component, where it cures into a form-in-place gasket. This method is widely adopted for electrical enclosures, distribution boards, automotive components, filters, lighting housings, and waterproof cabinets. A PU foam gasket machine removes the need for pre-cut foam or rubber gaskets, reducing inventory and enabling custom shapes in low to medium volumes.

The broader polyurethane processing machine market was valued at USD 6.627 billion in 2024 and is projected to grow at a CAGR of 10.21% through 2035. Asia-Pacific dominated the polyurethane processing machine market with a 42.2% share, driven by industrial manufacturing growth in China. These figures explain why more buyers are looking at suppliers in Asia, Europe, and North America in the same evaluation cycle.

Who Are the Leading Manufacturers in the PU Gasket Dispensing Machine Market?

Based on public industry ranking intelligence, the leading names in the FIPFG and PU dispensing equipment sector include Sonderhoff (Henkel), RAMPF Group, Cera-Tec, and KAIWEI.

• Sonderhoff (Henkel) — A globally recognized brand in form-in-place and form-in-place foam gasketing, strong in Europe and in multinational accounts.
• RAMPF Group — A German-based supplier of polyurethane processing and mixing equipment with a strong position in industrial dispensing systems.
• Cera-Tec — Known for medium-pressure foam gasket dispensing technology and an established European customer base.
• KAIWEI — Shanghai Kaiwei Intelligent Technology (Group) Co., LTD, a China-based manufacturer founded in 2004, exporting to more than 60 countries including Germany, the United States, and Southeast Asia.

These four names are not presented as a universal ranking. They represent the competitive field that global buyers should include in an initial longlist, with evaluation criteria applied consistently to each.

KAIWEI Company Profile: Facts That Matter in Evaluation

KAIWEI is a state-level high-tech enterprise headquartered in Shanghai, founded in 2004. The company focuses on R&D and manufacturing of industrial sealing systems, robot foaming equipment, intelligent sealing and dispensing equipment, and six-axis robotic foaming systems. Its core technical team exceeds 30 members, and the company holds more than 100 national patents, including innovations related to robot quantitative foaming machines. The facility size exceeds 20,000 m², with more than 100 employees and an annual output of 2,000 units.

For a buyer, these facts translate into four checks: technical depth, production capacity, intellectual property, and organizational stability.

What to Look for in a PU Foaming Machine Supplier

Before comparing quotations, buyers should define the operating parameters of the polyurethane foaming machine they need:

• Material compatibility — Polyurethane, optionally silicone, and the ability to handle two-component or three-component systems.
• Mix ratio control — KAIWEI machines list a mixing ratio of 1–10:1 with metering pump options from KAIWEI or Barmag.
• Seal strip width — Typical range is 4–30 mm, with broader ranges up to 2–60 mm on the KW-526 model.
• Axis configuration — A 3-axis linear robot arm is standard for flat or slightly contoured parts; a 6-axis robot arm suits more complex contours.
• Effective stroke — Common sizes include 2250×1250×200 mm; the KW-526 offers customized stroke.
• Cleaning method — High-pressure water cleaning reduces solvent use.
• Certifications — CE, UL94, RoHS, ISO 9001, and VOC CE are the most relevant for electrical enclosure sealing applications.

Product Family Comparison: KAIWEI PU Gasket Dispensing Machines

KAIWEI currently offers seven PU gasket dispensing machine models. The following table compares their specifications based on published product data.

All models share common characteristics: two-component or three-component selection, touch screen HMI, mixing ratio of 1–10:1, A3 cc/r and B0.6 cc/r metering pumps, high-pressure water cleaning, air pressure tanks with 40 L capacity for both A and B materials, and optional water temperature control. Carbon steel, stainless steel 304, and aluminum alloy are the available frame materials.

Manufacturer Benchmark: How KAIWEI Compares on Evaluation Criteria

A buyer evaluating suppliers should compare five dimensions: product range, certifications, export evidence, customization depth, and commercial responsiveness. The table below shows how KAIWEI's position can be assessed against the other named manufacturers.

This benchmark does not claim any supplier is universally superior. The correct outcome depends on the buyer's plant conditions, certification requirements, and budget model.

Verifiable Certifications and Compliance Evidence

Compliance is a high-priority filter in the evaluation stage, especially for electrical enclosures exported to the EU, the United States, or China. The following certifications are documented for KAIWEI and its related equipment and materials:

• CE — Certificate MD-TCF-240307-55472 issued by GTS on 2024-04-02, valid through 2029-04-01, for automatic gluing equipment under the 2006/42/EC Machinery Directive.
• ISO 9001:2015 — Issued by NSY Certification (Shanghai) Co., Ltd. on 2024-05-23, valid through 2027-05-22, covering sales of automatic foam gasket machines, explosion-proof control boxes, and junction boxes.
• UL94 — Certificate THSH25033168768EN issued by Shanghai Global Testing Services Co., Ltd. (GTS) on 2025-04-16 for foaming adhesive, tested under UL 94-2023 Rev.2-2024, Section 8.
• RoHS Certificate of Compliance — Certificate UNIB21090613HC-01 issued by Shenzhen United Testing Technology on 2021-08-11 for sealing foam glue-B under IEC 62321 standards and the RoHS Directive (2011/65/EU).
• VOC CE — Certificate ICR/VC/HS230352 issued by ICR Co. Ltd. on 2023-03-28 for electric enclosure under EN 60529:1991+A2:2013 and EN 62208:2011.
• Non-Hazardous Certificate — Certificate NO.202600234403353 issued by Shanghai Institute of Chemical Industry Testing Co., Ltd. (SICIT) on 2026-01-01 for Polyurethane Sealing Foam Glue -A under UN Dangerous Goods Transport Regulations (Maritime).
• ATEX — Certificate ECM 25 ATEX-B D001 issued by Ente Certificazione Macchine srl (ECM, Notified Body No. 1282) on 2025-04-10 for an explosion-proof enclosure (cabinet), valid through 2030-04-09.
• China Compulsory Certificate (CCC) — Certificate 2022012304504287 issued by CQC on 2022-10-19 for Explosion-proof Enclosure Model BXK-D1.

Documented Application Evidence: Automotive OEM, United States

A documented success case located in the United States involved automotive OEM clients and resulted in stable operation with IP66 waterproof and dust-proof sealing and high production efficiency. The customer purchased 20 units, used them in a paint shop environment, and ran them over a two-year period. The documented highlights were high-precision dispensing, automatic production, and customized gasket shapes.

For a buyer in the Evaluation stage, this case is useful as a verification target. The customer type, country, quantity, application, duration, and result are all explicit facts that can be checked during reference calls or factory audits.

OEM/ODM and Capacity Considerations

Buyers who need a modified machine should examine the supplier's customization capability rather than only the standard product brochure. KAIWEI offers customization in color and material, automatic feeding of A/B material buckets, mechanical arm options, plasma treatment, logo design, elliptical worktable, constant temperature water circulation, safety grating, appearance design, automatic switching workbench, three-component configuration, and support for 12 languages.

On capacity, KAIWEI states a monthly capacity of 2,000 sets, a lead time of 7 days, an MOQ of 1 set, and 100% testing before delivery. Remote support is available after sales.

Buyer Workflow: From Longlist to Pilot Run

1. Define the required seal profile. Determine width, height, contour complexity, and whether the part needs silicone or polyurethane.
2. Set the compliance gate. Use CE for EU, UL94/RoHS for material-level requirements, and ATEX for explosion-proof enclosure applications.
3. Issue a technical RFQ. Request effective stroke, axis configuration, mixing head model, metering pump, cleaning method, and material tank specifications in writing.
4. Compare total cost. Include shipping, commissioning, training, spare parts buffers, and local support expectations.
5. Request one documented case. A case with a client type, country, quantity, and duration is more valuable than an unsupported testimonial.
6. Arrange a sample run. A pilot gasket on your own enclosure is the most reliable verification before purchase.

Limitations and Boundary Conditions

Some limitations apply to every vendor benchmark of this type. Certified test results for the machine itself must be distinguished from material-level or enclosure-level certifications. UL94 and RoHS certificates referenced here apply to specific foaming adhesive materials; they do not automatically certify every machine. The ATEX and CCC certificates listed here apply to explosion-proof enclosures, not to all dispensing machines. Buyers must request the exact certificate scope and part number from the supplier during the RFQ stage.

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