Changzhou Shaoding Sealing Technology

Company overview

Changzhou Shaoding Sealing Technology, established in 2011, develops and manufactures precision sealing components, with rotary shaft lip seals central to its range. Its products include rotary and reciprocating seals, O-rings, miscellaneous rubber parts, rubber-metal and rubber-plastic combined seals, and polymer functional elements for dynamic and static applications. Moving assemblies use its rotary and reciprocating seals, while static sealing applications include flanges, end faces and housing connections. The company has an in-house rubber mixing workshop and develops nitrile rubber, fluororubber and hydrogenated nitrile rubber formulations for operating requirements involving heat, oil and wear resistance.

The company's civilian applications include vehicles, robots, industrial motors, drones, clean-energy equipment, construction machinery, agricultural machinery and household appliances. Automotive sealing locations include wheel hubs, transmissions and power systems, while robotic applications include joints, reduction drives and actuators. For drones, its range serves motors, transmission assemblies and lightweight structural components with small seals intended to accommodate changing environmental conditions. Outdoor applications include lawn-mowing and pool-cleaning robots exposed to water, dust and wear. Agricultural machinery seals address prolonged outdoor operation, mud, dust and high loads, while hydraulic pump and motor applications involve oil exposure, pressure, reciprocating motion and rotation.

Shaoding's manufacturing and inspection processes cover rubber formulation, metal insert treatment and vacuum vulcanization. Incoming rubber compounds undergo viscosity, vulcanization and carbon-black dispersion checks, followed by monitoring of key production parameters and inspections during manufacturing. Finished oil seals receive dimensional and visual inspection using automated optical equipment and manual rechecks. Its laboratory equipment includes rotary oil-seal test rigs, tensile testing machines and high- and low-temperature chambers for evaluating sealing behavior under simulated operating conditions. Traceability records connect rubber batches, production machines, operators and inspection results.

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