33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
This premium repair diaphragm & cup seal kit is specially developed for EVERDIGM (Hanwoo) RHB325, RHB330, RHB625, EHB30, EHB32 hydraulic rock breakers, widely matched on medium & large excavators, demolition and mining construction machinery. The complete set contains accumulator diaphragm, nitrogen cup seal, piston oil seals, dust seals, O-rings, gaskets and anti-extrusion backup rings for full breaker overhaul maintenance.
Manufactured with imported reinforced aramid fabric composite FKM fluororubber and high toughness PU material, the kit delivers outstanding nitrogen resistance, hydraulic oil resistance, high impact wear resistance and anti-fatigue performance. It is a direct replacement for original EVERDIGM sealing parts, effectively solving common failures such as nitrogen leakage, weak striking force, hydraulic oil seepage and pressure attenuation, greatly extending breaker service life under long-period high-frequency impact heavy-duty working conditions.
Item |
Detailed Parameter |
Product Name |
EVERDIGM RHB/EHB Series Breaker Diaphragm & Cup Seal Kit |
Applicable Model |
RHB325, RHB330, RHB625, EHB30, EHB32 |
Compatible Series |
EVERDIGM RHB & EHB Hydraulic Rock Breaker Series |
Main Material |
Imported Fabric Reinforced FKM Fluororubber + High Toughness PU Cup Seal + Reinforced Backup Ring |
Max Working Hydraulic Pressure |
18MPa |
Max Nitrogen Pre-charge Pressure |
16MPa |
Working Temperature |
-25°C ~ 120°C |
Kit Contents |
Accumulator diaphragm, nitrogen cup seal, piston rod seal, dust wiper, O-rings, metal gaskets, anti-extrusion backup rings, full overhaul sealing accessories |
Cross Reference OEM No. |
AB252-0091A, AB303-0131, AB303-0148B, B220-3006 |
Net Weight |
Approximately 1.2kg |
Applicable System |
Hydraulic impact breaker accumulator nitrogen sealing system, main cylinder hydraulic sealing system |
Warranty |
12 Months |
Fully dimensional matched with original EVERDIGM RHB325/RHB330/RHB625/EHB30/EHB32 breakers, consistent with OEM part numbers AB252-0091A, AB303-0131, AB303-0148B, B220-3006. Zero modification required for direct disassembly and installation, perfect interchangeability with original spare parts.
Core diaphragm and nitrogen cup adopt aramid fabric reinforced FKM composite material, matching high-performance PU piston seals. Excellent nitrogen permeation resistance, hydraulic oil corrosion resistance, high impact fatigue resistance, stable elastic performance under -25°C to 120°C variable temperature environment.
All components pass strict 18MPa hydraulic pressure and 16MPa nitrogen pressure aging impact testing. Effectively block internal nitrogen leakage and external hydraulic oil seepage, maintain stable striking power and consistent impact frequency, avoid breaker power drop caused by seal failure.
Contains all sealing consumables required for complete breaker disassembly maintenance, including accumulator diaphragm, nitrogen cup seal and full cylinder sealing parts. One-stop purchase reduces spare parts matching time, shortens equipment downtime and cuts overall maintenance operation costs.
Every seal kit undergoes air tightness test, high pressure fatigue impact test and high-low temperature aging test before delivery, fully meets EVERDIGM OEM manufacturing standards, stable and reliable long-term performance for mining and demolition harsh working conditions.
Suitable for EVERDIGM RHB325/RHB330/RHB625/EHB30/EHB32 hydraulic rock breakers mounted on various heavy-duty construction equipment:
Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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