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 piston cup diaphragm is custom-engineered for JAB JB101, JB110, JB111, JB121, JB141, JB171 series hydraulic rock breakers, widely matched to small & medium excavator hydraulic hammers for construction demolition, mining and road engineering. It is the core energy storage sealing component inside breaker accumulators, isolating high-pressure nitrogen chamber and hydraulic oil circuit independently.
Adopted imported high-performance HNBR composite rubber with reinforced fiber layer, the diaphragm delivers outstanding oil resistance, high-frequency fatigue resistance, wide temperature adaptability and anti-aging performance. It perfectly replaces original JAB OEM diaphragm parts, solves common faults including nitrogen leakage, insufficient impact force, unstable hammer output and frequent pressure drop, greatly extending breaker service life under long-period heavy impact working conditions.
Item |
Detailed Parameter |
Product Name |
JAB Series Hydraulic Breaker Piston Cup Diaphragm |
Applicable Models |
JB101, JB110, JB111, JB121, JB141, JB171 |
Compatible Series |
JAB medium & small hydraulic breaker hammer series |
Main Material |
Imported reinforced HNBR composite rubber with fiber reinforcement layer |
Max Bearing Pressure |
130MPa |
Working Temperature |
-35°C ~ 130°C |
Core Function |
Isolate nitrogen & hydraulic oil, store impact energy, stabilize hammer striking power |
Cross Reference OEM No. |
JAB-JB101, JAB-JB110, JAB-JB111, JAB-JB121, JAB-JB141, JAB-JB171 |
Net Weight |
0.3–0.6kg (varies by model) |
Install Position |
Hydraulic breaker nitrogen accumulator |
Warranty |
12 Months |
Fully dimensional matched for original JAB JB101/JB110/JB111/JB121/JB141/JB171 breakers, consistent with OEM part numbers. No cutting, grinding or modification required for direct on-site installation, fast maintenance without machine downtime.
Core diaphragm body uses imported HNBR rubber with built-in fiber reinforcement layer. Superior hydraulic oil corrosion resistance, ozone aging resistance and high-frequency stretch fatigue resistance, no hardening, cracking or elastic failure under long-time high pressure impact circulation. Stable performance within -35°C ~ 130°C extreme working environment.
All finished diaphragms pass 130MPa ultra-high pressure air tightness and fatigue cycle testing. Effectively prevent nitrogen gas leakage and hydraulic oil cross-contamination inside accumulator, maintain constant striking force, eliminate weak hammer, intermittent striking and pressure loss failures.
Covers all mainstream JAB small & medium breaker models (JB101/JB110/JB111/JB121/JB141/JB171). One-stop matching diaphragm parts reduce spare parts stocking types, shorten repair time and lower equipment operation & maintenance costs.
Each diaphragm undergoes raw material tensile test, high-low temperature aging test, high-pressure air tightness test and 100,000 times high-frequency stretch fatigue test before delivery, fully meets OEM production standards, guarantees long-term reliable performance under harsh construction working conditions.
Suitable for all equipment equipped with JAB JB101/JB110/JB111/JB121/JB141/JB171 hydraulic breakers:
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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