Ningbo Kaxite Sealing Materials Co., Ltd.

About Us

Ningbo Kaxite Sealing Materials Co., Ltd.

Ningbo Kaxite Sealing Materials Co., Ltd. is based in Ningbo, Zhejiang Province, China. Kaxite is one of the biggest sealing and heat preservation products manufacturer in China. Kaxite supply the overall solution of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets. To assure create more valve for customers from all over the world.

Kaxite has been found and conformed according to ISO 9001, As a professional manufacturer and supplier, Kaxite can offer a widely range of sealing raw materials and products,more competitive price, prompt feedback, fast delivery time & keep the order updated. We promise Kaxite Gasket & Seals is your good choice.

Ningbo kaxite sealing

Product Category

Copper Metal Gaskets
Copper Metal Gaskets

We are producer for high performance copper metal gaskets and we currently have few lines of copper metal gaskets equipment which allow us create over 200,000 pieces monthly. We regularly provide our products to world markets which can pass ISO 9001:2015, ROSH quality standard.


The copper metal gasket we can make is such as copper head gasket, copper exhaust gasket, OFHC copper gasket.

ISO 9001 · RoHS · ASME

China Copper Gasket Manufacturer – OFHC, Cylinder Head & Exhaust Metal Gaskets for High‑Pressure Sealing

Kaxite Sealing is a trusted copper gasket manufacturer and copper metal gasket supplier in China, offering OFHC copper gaskets, cylinder head gaskets, exhaust manifold gaskets, and silver‑plated copper gaskets for automotive, aerospace, vacuum, and industrial sealing applications. 15+ years of expertise, exporting to 60+ countries.

MOQ: 100 pcs Lead Time: 7‑15 days FOB Ningbo / EXW / CIF Custom Sizes & Thickness Free Sample
15+
Years Expertise
60+
Countries Served
OFHC
Grade Available
ISO 9001
Certified Quality
RoHS
Compliant Grades
ASME
B16.20 Compliant
100%
Traceability (MTC)

Copper Gasket Solutions by Industry

From automotive engines to ultra‑high vacuum systems – choose the right copper gasket for your application.

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Automotive & Engine

Copper cylinder head gaskets, exhaust manifold gaskets, and copper head gaskets for high‑performance and racing engines.

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Aerospace & Defense

OFHC copper gaskets for ultra‑high vacuum, cryogenic, and high‑temperature aerospace sealing applications.

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Vacuum & Semiconductor

Oxygen‑free copper gaskets for vacuum chambers, semiconductor equipment, and leak‑tight sealing.

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Oil & Gas

Copper ring gaskets and custom metal gaskets for high‑pressure pipelines, valves, and refinery equipment.

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Power Generation

Copper gaskets for turbine systems, heat exchangers, and high‑temperature steam applications.

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Custom OEM / ODM

Custom copper gaskets – any size, thickness, shape, and plating. Prototype to mass production.

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Why Choose Kaxite for Copper Gaskets?

  • ✅ In‑house stamping & annealing production
  • ✅ ISO 9001:2015 certified quality system
  • ✅ RoHS, REACH compliant materials
  • ✅ OFHC, C11000, C10200 copper grades
  • ✅ Silver‑plated and coated options
  • ✅ Custom thickness, diameter, and shape
  • ✅ Full traceability – MTC per EN 10204 3.1
  • ✅ Factory‑direct – competitive wholesale pricing
ISO 9001 RoHS ASME

Copper Gasket Capabilities

  • 🔹 Materials: OFHC, C11000, C10200, silver‑plated
  • 🔹 Types: Cylinder head, exhaust, OFHC vacuum, silver‑plated
  • 🔹 Thickness: 0.2mm – 10mm (custom)
  • 🔹 Diameter: DN10 – DN2000+
  • 🔹 Hardness: Annealed, 1/2 hard, full hard
  • 🔹 Plating: Silver, tin, nickel (custom)
  • 🔹 Standards: ASME, DIN, JIS, custom
Full Custom OEM/ODM Rapid Proto

Frequently Asked Questions

Quick answers about copper metal gaskets – what buyers and engineers want to know.

Q: What is OFHC copper and why is it used for gaskets?
A: OFHC (Oxygen‑Free High Thermal Conductivity) copper is ultra‑pure copper with excellent thermal and electrical conductivity, ideal for vacuum and high‑temperature sealing applications.
Q: What copper gasket types do you offer?
A: Cylinder head gaskets, exhaust manifold gaskets, OFHC vacuum gaskets, silver‑plated copper gaskets, and custom metal gaskets.
Q: Can you produce custom copper gaskets?
A: Yes – any size, thickness, shape, and plating. We work from drawings or samples. Custom packaging available.
Q: What is your typical lead time for copper gaskets?
A: Standard gaskets ship in 7‑15 working days. Custom orders may take 15‑20 days. Express service available.
Q: Do you provide material test reports and certificates?
A: Yes, every batch includes an MTC (EN 10204 3.1). Third‑party inspections (SGS, BV) are also supported.
Q: Can I get a sample before placing a bulk order?
A: Yes, free samples are available for standard copper gaskets. Contact our sales team with your requirements.

Need High‑Quality Copper Gaskets at Factory Prices?

Tell us your size, thickness, and quantity – our engineering team will respond within 24 hours with a tailored quote and technical support.

Get Your Quote Now →
🏭 Factory Direct ✅ ISO 9001 📦 MOQ: 100 pcs 🚢 Fast Shipping
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