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Kaxite Company

About Us

Ningbo Kaxite Sealing Materials Co., Ltd.

Founded in 1995, Kaxite is a leading spiral wound gasket manufacturer certified under ISO 9001:2025, API 601, and ASME B16.20. We supply inner/outer ring SWGs, RTJ gaskets, Kammprofile, and PTFE packings to over 60 countries, including ExxonMobil, Saudi Aramco projects, and European valve manufacturers.

Our in-house R&D and CNC machining ensure ±0.1mm precision and rapid 7-day delivery for non-standard sizes.

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ISO 9001:2025 Certified

ASME/API Spiral Wound Gasket Manufacturer Precision Sealing for Oil & Gas, Chemical & Power Industries

KAXITE – certified spiral wound gasket manufacturer with 30+ years experience. Supply ASME B16.20, API 601 SWG with inner/outer rings, RTJ gaskets, Kammprofile, and PTFE packings to 60+ countries. OEM/ODM with ±0.1mm precision and 7-day custom lead time.

✔ MOQ: 10 pcs ✔ Lead Time: 7–15 Days ✔ FOB / CIF / EXW ✔ Custom OEM/ODM ✔ Free Sample Available
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Full-Scale Production Hub

6,000 m² facility with automated SWG winding, CNC machining, and in-house heat treatment.

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Certified Material Lab

Comprehensive testing for sealability, creep relaxation, and tensile strength – certified reports with every order.

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Global Export Network

Supplying to 60+ countries including ExxonMobil, Saudi Aramco projects, and European valve manufacturers.

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Oil & Gas

ASME B16.20 SWG, RTJ, and Kammprofile gaskets for refineries, subsea pipelines, and offshore platforms. Built for extreme pressure and high-temperature service.

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Chemical & Petrochemical

PTFE, expanded graphite, and non-asbestos gaskets for aggressive media, high-temperature reactors, and sanitary processing environments with strict purity requirements.

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Power & Utilities

High-temperature sealing solutions for steam turbines, HRSG boilers, and exhaust systems. Reliable performance in continuous operation up to 650°C.

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Custom OEM/ODM

Tailored gasket fabrication, braided packing, and compression sheets manufactured to your precise drawings. 30+ years of custom production experience with 500+ molds available.

Request Custom Quote →
✓ ISO 9001:2025 ✓ API 601 ✓ ASME B16.20 ✓ TUV Tested ✓ NACE MR0175

Frequently Asked Questions

Everything you need to know about ordering spiral wound gaskets from KAXITE

Q: What materials can you use for spiral wound gasket windings?

A: We provide SS304, SS316, SS316L, Monel, Inconel, Titanium for windings; fillers include graphite, PTFE, ceramic fiber, and mica. All comply with ASME B16.20.

Q: Can you customize spiral wound gaskets with both inner and outer rings?

A: Yes. Our ASME B16.20 SWGs are available with inner ring for pressure resistance and outer ring for centering. We also produce non-standard dimensions for special flanges.

Q: What is the minimum order quantity for API 601 gaskets?

A: MOQ is only 10 pcs for standard sizes, and we offer sample service free for existing customers.

Q: What quality documentation is provided with each order?

A: Every shipment includes comprehensive material test reports covering compression, creep relaxation, and sealability. Full material traceability and compliance with your specifications.

Need High-Quality Spiral Wound Gaskets at Factory Prices?

Send us your flange specifications – we'll provide a detailed quote within 2 hours with engineering support for bulk orders.

Get Your Free Quote →

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