High-performance polyurethane sealing solutions for mining & construction machinery — wear-resistant materials for hydraulic power systems, engineered for zero leakage and long service life.
Three reasons OEMs and distributors choose us as their sealing partner.
We independently developed three polyurethane compounds — PHDI, PPDI and MDI (B6000) — delivering 2-3x service life and 3-10x the wear resistance of NBR.
A leading seal supplier to most rock hammer manufacturers in China, and a partner to major equipment brands — Komatsu, CAT, Volvo, Hitachi, JCB and SANY.
12 seal element families, plus 10 excavator seal positions and 7 breaker seal types — equipment-specific kits matched to your machine, quoted factory-direct.
Order individual sealing elements, or a complete equipment-specific kit — both shipped factory-direct.
Individual sealing elements for hydraulic & pneumatic systems.
Equipment-specific rebuild kits, matched to your machine.
From hydraulic breakers to rock drills — comprehensive sealing solutions across 12 key industries.
Comprehensive sealing solutions trusted by the world's leading construction equipment brands.
PHDI, PPDI and MDI (B6000) — three high-performance polyurethane compounds developed for hydraulic power systems where heat, pressure and wear decide service life.
Hangzhou Ruiwei Technology Co., Ltd. is a leading manufacturer of high-performance polyurethane sealing solutions, specializing in mining & construction machinery applications and focused on wear-resistant materials for hydraulic power systems.
Under the BORISE brand, we are the professional seal supplier to most rock hammer manufacturers in China. Committed to zero-leakage technology and long service life, we hold 5 invention patents and 10 utility patents, and are ISO 9001 certified — exporting to Europe, the Middle East, Southeast Asia, Africa and Russia.
Tell us your application, material and dimensions — get a quotation within 24 hours.
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