Graphite seal rings are extensively used in machinery sectors, with customized graphite grades available for diverse working conditions. Resin-impregnated carbon graphite boosts mechanical strength, wear resistance and lowers porosity. Metal-impregnated variants achieve higher density and better high-temperature performance. Antimony-impregnated graphite excels in heat resistance, thermal conductivity and thermal-shock resistance. All materials feature low friction, fine self-lubrication, corrosion resistance, and support precision machining for various custom shapes.
Excellent self-lubricating performance, low friction coefficient, stable friction behaviour without additional lubrication.
Good corrosion resistance against most acids, alkalis and organic media.
Outstanding thermal-shock resistance and high thermal conductivity, capable of working under wide temperature ranges.
Custom-impregnated grades available to meet different operating conditions.
Easy for precision CNC machining, can be manufactured into various complex geometries per drawings.
Compact structure, stable dimensional tolerance, well-matched for mechanical sealing assemblies.
Resin-impregnated carbon-graphite Impregnated with resin under high temperature and high pressure. Effectively reduces porosity, improves mechanical strength and wear resistance. Suitable for medium-temperature working environments.
Metal-impregnated (Antimony-impregnated) graphite Antimony is infiltrated into graphite pores under high-temperature & high-pressure process. Higher density and mechanical strength, excellent high-temperature resistance, good thermal conductivity. Ideal for high-temperature sealing scenarios.
Grade customization We select proper graphite substrates and impregnation solutions according to customer’s actual working conditions: temperature, medium, pressure and rotating speed.
Precision machining Strict CNC turning & milling to guarantee flatness, dimensional accuracy and fitting tolerance for sealing application.
Raw material inspection Finished parts are tested for density, porosity, flexural strength and hardness before delivery to ensure consistent sealing performance.
Shuangjing Village, Ligezhuang Town, Jiaozhou City, Qingdao City, Shandong Province, China
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