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 & rubber cup is specially engineered for FURUKAWA series hydraulic rock breakers. It serves as the core separation component between nitrogen gas chamber and hydraulic oil, effectively isolating gas and fluid. Made of imported reinforced NBR and FKM fluororubber, it delivers outstanding oil resistance, anti-fatigue, wear & cold-heat resistance. Perfect OEM replacement for original Furukawa breaker rubber parts, solving common failures like weak striking force, nitrogen leakage, hydraulic oil seepage and abnormal breaker vibration, greatly extending breaker service life under long-term mining & demolition heavy loads.
Item |
Detailed Parameter |
Product Name |
FURUKAWA Hydraulic Breaker Diaphragm & Rubber Cup |
Applicable Model |
HB20G / F20 / F21 / F22 / F23 / F27 / F36 / FXJ275 |
Compatible Series |
FURUKAWA HB & F & FXJ Series Hydraulic Rock Breaker |
Main Material |
Imported Reinforced NBR + FKM Fluororubber, Thickened Edge Reinforcement |
Max Working Pressure |
32MPa |
Working Temperature |
-35°C ~ 125°C |
Kit Contents |
Accumulator diaphragm, rubber cup, matching auxiliary O-rings |
Cross Reference OEM No. |
HB20G-70113, 902411-920020, FXJ275-13521 |
Net Weight |
Approximately 0.45kg per piece |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully matched with FURUKAWA HB20G, F20, F21, F22, F23, F27, F36, FXJ275 breakers, consistent with OEM part numbers HB20G-70113, 902411-920020, FXJ275-13521. Zero modification required for quick on-site installation, no loose fit or gap after assembly.
Core diaphragm and rubber cup adopt premium FKM fluororubber with thickened reinforced edge structure. Excellent hydraulic oil corrosion resistance, anti-aging and anti-fatigue performance, stable elastic deformation under -35°C low temperature and 125°C high temperature, no cracking, hardening or bulging after long reciprocating compression.
All finished products pass 32MPa high-pressure nitrogen tightness cycling test. Reliably separate nitrogen and hydraulic oil, eliminate gas leakage and internal oil mixing faults. Maintain stable breaker impact energy, avoid weak hitting, jumping hammer and construction efficiency drop caused by damaged diaphragm.
Equipped with matched auxiliary O-rings for accumulator maintenance. One-piece complete repair accessory reduces spare parts procurement steps, shorten on-site breaker overhaul time and lower equipment downtime loss and maintenance cost.
Every diaphragm & rubber cup undergoes air tightness, high-pressure fatigue, high-low temperature aging and elastic rebound tests before delivery. Strictly comply with original Furukawa production standards, stable long-term performance for harsh heavy-duty construction scenarios.
Suitable for FURUKAWA hydraulic breakers equipped on various heavy construction machinery:
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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