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Ningbo Kaxite Sealing Materials Co., Ltd. is a professional manufacturer and supplier of high-performance sealing solutions, headquartered in Ningbo, Zhejiang, China. Since our founding, we have grown into one of the largest sealing and heat preservation product manufacturers in the country, offering a comprehensive range of metal and non-metallic gaskets, braided packings, and compressed gasket sheets.
Our core expertise lies in ring joint gaskets – including oval, octagonal, RX, BX, lens, AX, IX, and VX styles – manufactured in stainless steel (304, 316, 321), Inconel, Monel, Titanium, Hastelloy, soft iron, and carbon steel. Every gasket is produced under strict quality control to meet API 6A and ASME B16.20 standards, with full material traceability (MTC per EN 10204 3.1).
We serve diverse industries: aviation, shipbuilding, petrochemical, power generation, food and pharmaceutical, with a focus on high-pressure, high-temperature, and corrosive environments. Our factory-direct model ensures competitive pricing, fast lead times (7–15 days for standard sizes), and responsive technical support.
To deliver reliable, precision-engineered sealing solutions that enhance safety, reduce downtime, and exceed customer expectations. We are committed to continuous improvement, innovation, and sustainable manufacturing practices.
Kaxite Sealing is ISO 9001:2015 certified, and our products are fully compliant with API 6A, ASME B16.20, and NORSOK standards. We operate a comprehensive quality management system that covers raw material inspection, in-process dimensional checks, hardness testing, and final pressure simulation. Each shipment is accompanied by a Mill Test Certificate (MTC) providing full traceability.
Our Ningbo factory is equipped with advanced CNC machining centers, heat treatment furnaces, and precision grinding equipment. We produce ring joint gaskets in all standard sizes and custom dimensions, with in-house quality control labs for dimensional and hardness testing.
We export to more than 60 countries across North America, Europe, the Middle East, Southeast Asia, and beyond. Our logistics team ensures timely delivery with flexible shipping terms (FOB Ningbo, EXW, CIF).
Tell us your style, material, and size – our engineering team will respond within 24 hours with a tailored quote and technical support.
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