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 (seal cup) is specially developed for FURUKAWA HB40G, F45, F46 hydraulic rock breakers. It acts as the core isolation component of the breaker nitrogen accumulator, completely separating high-pressure nitrogen and hydraulic oil.
Manufactured with imported high-performance HNBR hydrogenated nitrile rubber with reinforced edge vulcanization, this diaphragm boasts outstanding oil resistance, high-frequency fatigue resistance, low-temperature toughness and anti-aging properties. It perfectly replaces original FURUKAWA OEM diaphragms, solves common failures including nitrogen leakage, weak impact force, unstable hammer output and frequent pressure drop, and greatly extends breaker service life under continuous heavy-load crushing operations.
Item |
Detailed Parameter |
Product Name |
FURUKAWA HB40G/F45/F46 Breaker Accumulator Diaphragm (Seal Cup) |
Applicable Model |
FURUKAWA HB40G, F45, F46 Hydraulic Rock Breaker |
Compatible Series |
FURUKAWA Medium & Large Hydraulic Hammer Series |
Main Material |
Imported High-strength HNBR Reinforced Rubber (Thickened Edge) |
Max Working Pressure |
60MPa |
Working Temperature |
-30°C ~ 120°C |
Core Function |
Isolate nitrogen chamber & hydraulic oil, store impact energy |
Cross Reference OEM No. |
HB40G-92021, F45-DIA001, F46-MEM003 |
Single Net Weight |
Approximately 0.35kg |
Applicable System |
Breaker accumulator nitrogen-hydraulic energy storage system |
Warranty |
12 Months |
Precise one-to-one dimensional matching for FURUKAWA HB40G, F45, F46 breakers, consistent with OEM part numbers HB40G-92021, F45-DIA001, F46-MEM003. No trimming, grinding or modification required for direct on-site installation.
Core diaphragm body adopts imported modified HNBR rubber with thickened reinforced edge treatment. Superior hydraulic oil corrosion resistance, high-frequency stretch fatigue resistance, stable elasticity between -30°C and 120°C, not easy to harden, crack or deform under long-term impact cycles.
All finished diaphragms pass 60MPa high-pressure air tightness and repeated fatigue cycle tests. Effectively blocks nitrogen escape and hydraulic oil infiltration, maintains constant accumulator energy storage efficiency, eliminates hammer weak blow and intermittent power loss issues.
Optimized arc dome structure design, withstands thousands of rapid stretch-rebound cycles per minute. Service life increased by over 50% compared with ordinary NBR diaphragms, reducing frequent replacement downtime and maintenance costs.
Each finished diaphragm undergoes raw material hardness testing, vulcanization inspection, high-pressure air tightness aging test and dimensional calibration before delivery. Fully meets FURUKAWA OEM production standards with consistent stable batch quality.
Matched with FURUKAWA HB40G/F45/F46 hydraulic breakers widely used in all heavy crushing scenarios:
• Quarry stone breaking & mining excavation
• Building demolition & concrete crushing
• Road construction, pavement breaking & foundation engineering
• Tunnel excavation & mine underground operation
• Municipal engineering & waste dismantling
• Large excavator supporting crushing 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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