Hanwoo B300-0602 Hydraulic Breaker Seal Kit

The Hanwoo B300-0602 seal kit is engineered for the RHB330 series hydraulic breakers, also referenced as RHB 330, EHB30, and TF30 models. This kit comprises a complete set of dynamic and static seals manufactured from high-grade NBR and polyurethane materials, designed to withstand high-pressure hydraulic oil, nitrogen gas charging pressures, and extreme impact cycles encountered in demolition and quarry applications. Components include piston step seals, buffer rings, gas seals, cylinder O-rings, accumulator diaphragm seals, valve spool seals, dust wipers, and back-up rings. The kit restores original sealing performance, preventing hydraulic oil leakage and nitrogen gas loss, ensuring consistent impact energy and breaker longevity. Net weight is 0.4 kg. Cross-references include Hanwoo part numbers B300-0602, B300-5007, and aftermarket reference 3Q-7321.