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 assembly is customized for MSB MS75AT hydraulic rock breakers, widely matched on 6–9 ton mini excavators for demolition, rock crushing and municipal engineering. It integrates energy storage diaphragm and sealing piston cup as core accumulator spare parts, fully replacing original MSB rubber components.
Manufactured with imported reinforced NBR and high-performance FKM fluororubber via secondary vulcanization, the product boasts outstanding fatigue resistance, hydraulic oil resistance and anti-tear performance. It effectively solves common failures like diaphragm rupture, nitrogen leakage, unstable impact force and weak hammer output, greatly extending breaker service life under continuous high-frequency impact heavy-duty working conditions.
Item |
Detailed Parameter |
Product Name |
MSB MS75AT Hydraulic Breaker Diaphragm & Piston Cup Assembly |
Applicable Model |
MSB MS75AT Rock Hammer |
Compatible Series |
MSB AT Series Hydraulic Breaker |
Main Material |
Imported Reinforced NBR / FKM Fluororubber + High Tensile Reinforcement Layer |
Max Working Pressure |
26.0MPa |
Working Temperature |
-25°C ~ 115°C |
Kit Contents |
Energy storage diaphragm, sealing piston cup, auxiliary O-rings, positioning gaskets |
Cross Reference OEM No. |
MSB-MS75AT, BR75AT001 |
Net Weight |
Approximately 0.5kg |
Applicable System |
Breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
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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