About Us

Our Company

Hangzhou Ruiwei Machinery Equipment Co., Ltd. is a professional sealing system supplier dedicated to the research, design and production of excavator oil seals, hydraulic breaker oil seals and oil seals of other construction machinery. The company's own brands include BORISE, WECKERSEALS, etc., and it’s currently the seal supplier for most breaker brands in China. The company adopts German technology in R&D and production engineering, developed polyurethane oil seals of high-resilience and excellent wear resistance,and step seals of high wear resistance and tear resistance based on PPDI material, matching the various needs of construction machinery sealing.

Professional and efficient

The Company specializes in the design, production of polyurethane oil seals and has supplied new and replacement seal kits to world known brands of hydraulic breakers such as Soosan, General, Furukawa, Atlas copco, KRUPP, DAEMO, DOOSAN, TOKU, Montabert, FINE, Eddie etc. In China, we’re one of the only few suppliers of the seal kits to match the hydraulic breakers, occupying the market share of 50~70%.

Industry leading

Borise, the seal brand developed by the company “HANGZHOU RUIWEI MACHINERY EQUIPMENT CO.,LTD.” Over the past decade. With the tenet “Quality Builds Brand, Sealing Makes the Future”, Borise seal persists on producing good quality product, and achieving the best personal development for each employee.


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