HongJie Sealing

O-Rings & Seals

Hongjie supplies custom O-rings, rubber seals, sealing rings, lip seals, and piston seal rings for static and dynamic sealing applications, with flexible material options, custom sizes, and hardness control.

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Products

Featured Products

Custom-molded O-rings, gaskets, and seals manufactured to IATF 16949 & ISO standards. Delivering high-reliability components for automotive, medical, and industrial applications.

Can't Find the Right O-Ring or Seal?

Hongjie customizes O-rings and seals by size, material, hardness, temperature, pressure, and media requirements.

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APPLICATION GUIDE

O-Rings and Seals for Industrial Applications

Hongjie O-rings and rubber seals help prevent leakage, maintain pressure, resist chemicals, and support reliable sealing performance in equipment assemblies.

Major Industries
Served Worldwide

Automotive & Transportation

O-rings, sealing rings, lip seals, and rubber seals for engines, fuel systems, transmissions, cooling systems, and vehicle assemblies.
Medical & Sanitary Equipment

Silicone O-rings and custom rubber seals for pumps, valves, diagnostic equipment, sanitary fittings, and clean-use sealing applications.
Fluid Control & Industrial Equipment

Rubber O-rings, Viton seals, piston seals, and double lip seals for hydraulic, pneumatic, valve, pump, and machinery sealing systems.