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 & piston cup repair kit is specially developed for EVERDIGM (Hanwoo) RHB314, TF17, EHB13, EHB17 hydraulic rock breakers, widely matched to medium & small excavator hydraulic hammers for mining, demolition and road construction. The set includes complete energy storage chamber core parts: main diaphragm, piston cup, auxiliary sealing O-rings and reinforced edge backing rings for full accumulator overhaul.
Adopting imported modified HNBR + high-toughness polyurethane composite material, the kit features outstanding anti-fatigue stretch, hydraulic oil resistance, low-temperature flexibility and high-pressure tearing resistance. It perfectly replaces original EVERDIGM OEM diaphragm & piston cup, solves common failures such as nitrogen leakage, weak impact force, unstable hammer output and short accumulator service life, greatly extending continuous working time of breakers under frequent high-frequency impact heavy-load conditions.
Item |
Detailed Parameter |
Product Name |
EVERDIGM RHB314 TF17 EHB13 EHB17 Breaker Diaphragm & Piston Cup Kit |
Applicable Model |
RHB314, TF17, EHB13, EHB17 Hydraulic Rock Breaker |
Compatible Series |
EVERDIGM RHB / TF / EHB Series Hydraulic Hammer |
Main Material |
Imported Modified HNBR + Reinforced PU Composite + Anti-wear Backup Ring |
Max Working Pressure |
28MPa |
Working Temperature |
-30°C ~ 125°C |
Kit Contents |
Main accumulator diaphragm, piston cup, matched O-rings, edge reinforcing rings, full overhaul sealing accessories |
Cross Reference OEM No. |
ED-RHB314, ED-TF17, ED-EHB13, ED-EHB17, HW-ACC-DIA017 |
Net Weight |
Approximately 0.68kg |
Applicable System |
Breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional matched with original EVERDIGM RHB314, TF17, EHB13, EHB17 breaker accumulator parts, consistent with OEM part numbers ED-RHB314, ED-TF17, ED-EHB13, ED-EHB17. No cutting, grinding or modification required for direct disassembly and installation.
Core diaphragm and piston cup adopt imported modified HNBR + high-toughness PU dual composite vulcanization process. Excellent oil corrosion resistance, anti-aging, anti-tearing performance, stable elastic recovery under -30°C to 125°C wide temperature range, no hardening or permanent deformation after millions of high-frequency stretch cycles.
All components pass strict 28MPa high-pressure fatigue impact test. Effectively isolate hydraulic oil and high-pressure nitrogen cavity, eliminate internal nitrogen leakage and external oil seepage failures, maintain constant accumulator energy storage efficiency, guarantee continuous and stable breaker impact force without power attenuation.
Integrates all dedicated sealing and energy storage accessories needed for RHB314/TF17/EHB13/EHB17 breaker accumulator maintenance. Complete matching parts reduce spare parts procurement time and shorten on-site repair downtime, lowering overall equipment operation and maintenance costs.
Every diaphragm & piston cup kit undergoes air tightness high-pressure test, cyclic fatigue stretch test and high-low temperature aging test before delivery, fully meets EVERDIGM OEM manufacturing standards, ensures long-term reliable performance in harsh construction sites.
Suitable for EVERDIGM RHB314, TF17, EHB13, EHB17 hydraulic rock breakers equipped on various engineering heavy-duty 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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