About Us

Who We Are

Kaxite Sealing® is a China-based industrial sealing manufacturer with over 35 years of engineering expertise. Founded in 1990 and headquartered in Ningbo, Zhejiang Province, we have grown into one of Asia's most trusted suppliers of precision gaskets, braided packing, compression sheets, and engineered sealing materials.

Our manufacturing facilities are located in Zhenhai District, Ningbo — one of China's premier industrial and port zones — equipped with spiral wound gasket winding machines, waterjet cutting systems, hydraulic press tooling, and a dedicated in-house quality laboratory. Every batch is tested before shipment to ensure full compliance with international standards.

We serve procurement engineers, maintenance teams, and EPC contractors across the oil & gas, petrochemical, power generation, pharmaceutical, and food processing industries in more than 60 countries worldwide.

Our Product Expertise

Quality & Certifications

Kaxite Sealing operates under a rigorous quality management system recognized by international certification bodies. Our in-house QC process includes dimensional inspection, hydrostatic pressure testing, hardness and density verification, and chemical resistance analysis. Material test reports and batch traceability documentation are provided on request.

• ISO 9001:2025
• API 607
• ASME B16.20
• FDA 21 CFR 177.1550
• USP Class VI
• ASTM G63

Industries We Serve

• 🛢 Oil & Gas
• ⚗️ Petrochemical & Chemical
• ⚡ Power Generation & Nuclear
• 💊 Pharmaceutical & Biotech
• 🍃 Food & Beverage Processing
• ⚓ Marine & Shipbuilding
• 🏭 Pulp & Paper
• 🌊 Water Treatment

Oil & Gas

Upstream, midstream, and downstream applications: wellhead equipment, pipeline flanges, pressure vessels, heat exchangers, and refineries. Gaskets meeting NACE MR0175 for sour gas service are available on request.

Power Generation & Nuclear

Nuclear-grade spiral wound gaskets and high-temperature graphite packing for steam turbines, boilers, and nuclear power plant systems. Designed to withstand sudden pressure and temperature fluctuations with zero leakage tolerance.

Pharmaceutical & Food Processing

FDA 21 CFR 177.1550-compliant and USP Class VI-certified expanded PTFE gaskets for sterile process lines, bioreactors, and food-grade equipment where contamination control is critical.

Global Supply Capability

Kaxite ships directly from Ningbo Port — one of China's largest international cargo hubs — to customers in the Americas, Europe, the Middle East, Southeast Asia, and Africa. Our export team handles full customs documentation, material certifications, and third-party inspection coordination.

• Standard lead time: 15–20 business days from order confirmation
• Samples available for material and dimensional specification approval
• Custom fabrication: non-standard shapes, special alloys, complex geometries via drawing or flange data
• Industrial-grade packaging with individual part marking and batch labels
• Third-party inspection (SGS, BV, Intertek) coordination available

Why Choose Kaxite Sealing

• 35 years of focused manufacturing in industrial sealing — not a trading company
• Own production base in Ningbo with dedicated QC laboratory
• 2-hour quote response commitment for standard inquiry requests
• Full technical support: material selection, standard cross-reference, and installation guidance
• Direct factory pricing with no intermediary markup
• Internationally certified quality — ISO 9001, API 607, ASME B16.20
• Trusted by buyers in 60+ countries across six continents