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 heavy-duty accumulator diaphragm & full repair seal kit is customized for EVERDIGM (Hanwoo) RHB335, RHB340, RHB350, EHB40, EHB50 hydraulic rock breakers, widely matched on medium & large excavator demolition, mining and road construction machinery. The complete set includes breaker accumulator diaphragm (rubber bowl), piston seals, dust seals, O-rings, gaskets and anti-extrusion backup rings for full breaker overhaul maintenance.
Core diaphragm adopts imported high-toughness HNBR + reinforced fiber composite material, all matching seals use premium FKM fluororubber. It delivers outstanding oil resistance, nitrogen aging resistance, impact fatigue resistance and high-pressure bearing capacity. Directly replaces original EVERDIGM OEM diaphragm & seal parts, thoroughly solves common failures like accumulator nitrogen leakage, hydraulic oil seepage, unstable impact force and pressure attenuation, effectively extending breaker service life under long-period high-frequency impact heavy-load operation.
Item |
Detailed Parameter |
Product Name |
EVERDIGM RHB/EHB Series Breaker Diaphragm & Full Seal Kit |
Applicable Models |
RHB335, RHB340, RHB350, EHB40, EHB50 Hydraulic Rock Breaker |
Compatible Series |
EVERDIGM RHB medium breaker series, EHB light-medium breaker series |
Main Material |
Accumulator Diaphragm: Imported high-strength HNBR fiber composite; Sealing parts: FKM fluororubber + PU reinforced backup rings |
Max Working Impact Pressure |
130MPa |
Working Temperature |
-35°C ~ 120°C |
Kit Contents |
Accumulator diaphragm (rubber bowl), piston seal, dust wiper, O-rings, valve gaskets, anti-extrusion rings, full overhaul sealing accessories |
Cross Reference OEM No. |
RHB335-DIA, RHB340-DIA, RHB350-DIA, EHB40-DIA, EHB50-DIA, HW-ACC-DIA-008 |
Net Weight |
Approximately 1.1kg |
Applicable System |
Hydraulic breaker nitrogen accumulator system, main cylinder impact sealing system |
Warranty |
12 Months |
Fully dimensional matched with original EVERDIGM RHB335/RHB340/RHB350/EHB40/EHB50 breakers, consistent with OEM diaphragm and seal part numbers. No cutting, grinding or modification required for direct field installation, perfectly fit breaker accumulator and main cylinder assembly.
The core nitrogen storage diaphragm uses imported HNBR fiber composite formula, with ultra-high anti-fatigue performance against millions of high-frequency impact cycles. Auxiliary sealing components adopt high-performance FKM fluororubber, resistant to hydraulic oil, nitrogen aging, acid and alkali corrosion, stable performance within -35°C ~ 120°C wide temperature range.
All components pass strict 130MPa high-pressure impact cycle testing. Effectively stops accumulator nitrogen leakage and internal/external hydraulic oil seepage, maintains constant nitrogen pre-charge pressure and stable breaker impact output, avoids frequent nitrogen refilling and power drop issues during construction.
Integrates all sealing and diaphragm spare parts required for full breaker disassembly maintenance. One set covers accumulator and main cylinder overhaul, reduces separate parts procurement time, shortens equipment downtime and lowers overall construction operation maintenance cost.
Every diaphragm seal kit undergoes air tightness, high-frequency impact fatigue, high temperature aging and compression permanent deformation tests before delivery, fully meets EVERDIGM OEM production standards, guarantees long-term reliable performance under harsh mining, demolition and road crushing working conditions.
Suitable for all excavator-mounted EVERDIGM RHB335/RHB340/RHB350/EHB40/EHB50 hydraulic rock breakers in multiple heavy-duty working scenarios: • Municipal building demolition & concrete breaking • Quarry stone mining & rock crushing • Highway roadbed excavation & pavement breaking • Mine underground tunneling & slag clearing • Engineering machinery rental fleet maintenance • Medium & large tonnage excavator supporting crushing attachments
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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