Engineered for Perfection

Premium sealing solutions trusted by industries worldwide. From Spiral Wound Gaskets to PTFE Seals, Kaxite delivers unmatched quality, durability, and performance.

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15+ Years

Global Manufacturing Excellence

50+ Countries

Serving Clients Worldwide

ISO Certified

Quality & Environmental Standards

About Kaxite Seals

Ningbo Kaxite Sealing Materials Co., Ltd. is one of the leading manufacturers of sealing and heat preservation products in China. Based in Ningbo, Zhejiang Province, we specialize in providing comprehensive sealing solutions for industries across the globe.

Our product range includes metal and non-metallic gaskets, braided packings, compressed gasket sheets, PTFE & PEEK seals, and advanced sealing machinery. We are committed to innovation, quality, and customer satisfaction.

ISO Certified Quality Management
Complete In-House R&D and Testing
Global Distribution Network
Custom Solutions & OEM Support

Our Products

Comprehensive range of high-performance sealing materials and components for industrial, petrochemical, power, and mechanical applications.

Spiral Wound Gasket

Stainless steel winding with graphite/PTFE filler. Ideal for high-pressure flanges in oil & gas.

Standard, Nuclear, Heat Exchanger Models

PTFE Braided Packing

Pure PTFE or reinforced with glass fiber. Excellent chemical resistance for pumps and valves.

Virgin, Graphite-Enhanced, Anti-Extrusion

Expanded Graphite Sheet

Flexible, high-temperature resistant sheet for custom gasket fabrication.

0.5mm to 6mm Thickness | Reinforced Options

OFHC Copper Gasket

Oxygen-Free High Conductivity copper for vacuum and high-temperature systems.

Annealed, Soft, Formable | ASTM B152 Compliant

PTFE Rod & Tube

Virgin and filled PTFE rods for machining seals, bushings, and insulators.

Diameter: 5mm to 300mm | ASTM D1710

SWG Manufacturing Machine

Fully automatic spiral wound gasket production line with CNC control.

High Precision | 500+ Units/Day Capacity

Non-Asbestos Compression Sheet

Eco-friendly alternative with aramid and cellulose fibers. High strength and temperature resistance.

NEMA, JIS, DIN Standards Available

Die-Formed Graphite Ring

Precision-molded rings for valve stems and rotating shafts. Low friction and high recovery.

Custom Sizes | High Thermal Conductivity

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Why Choose Kaxite?

Engineered reliability, global compliance, and unmatched technical support.

Quality Assurance

ISO 9001 certified processes. Every product undergoes rigorous testing for pressure, temperature, and chemical resistance.

Global Reach

Exported to over 50 countries. Localized support and fast delivery through strategic logistics partners.

Custom Engineering

OEM/ODM services available. We design and manufacture sealing solutions tailored to your specifications.

Frequently Asked Questions

What materials do you offer for gaskets?

We offer spiral wound, graphite, PTFE, copper, rubber, non-asbestos, and composite gaskets in various grades and standards (ASME, API, DIN, JIS).

Can you produce custom-sized seals?

Yes, we provide full OEM/ODM services. Send us your drawings or samples and we’ll manufacture to your exact specifications.

Are your products compliant with international standards?

Yes, our products meet ISO, ASTM, NEMA, and other global standards. We are ISO 9001 certified.

What is the lead time for orders?

Standard products: 7–15 days. Custom orders: 15–30 days depending on complexity and quantity.

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