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 is customized for MSB series MS45AT / MS900 hydraulic rock breakers, core spare parts for excavator hammer accumulator energy storage system. It adopts imported high-performance modified PU + FKM fluororubber composite material, integrating ultra-high fatigue resistance, oil resistance and high-pressure resilience. The product fully matches original breaker dimensions, solves frequent rupture, nitrogen leakage, impact force attenuation and oil mixing failures of old diaphragms, greatly extend breaker continuous working life under long-frequency heavy crushing operation.
Item |
Detailed Parameter |
Product Name |
MSB MS45AT MS900 Breaker Accumulator Diaphragm & Piston Cup |
Applicable Model |
MS45AT / MS900 MSB Series Hydraulic Rock Breaker |
Compatible Series |
MSB Medium & Large Excavator Hammer Range |
Main Material |
Imported Modified PU + FKM Fluororubber Composite |
Max Working Pressure |
28MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Main diaphragm, piston cup, matching O-rings, backup sealing rings, full accumulator overhaul accessories |
Cross Reference OEM No. |
MSB-MS45AT, MSB-MS900, 8951046210 |
Net Weight |
Approximately 0.68kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional consistent with original MS45AT & MS900 breaker diaphragms, corresponds to OEM part numbers MSB-MS45AT, MSB-MS900, 8951046210. No cutting, grinding or modification required for direct on-site replacement, quick maintenance without downtime loss.
Core diaphragm adopts imported PU-FKM composite vulcanization process. Superior hydraulic oil resistance, anti-aging, anti-fatigue performance; withstand thousands of high-frequency stretch cycles per minute without cracking or permanent deformation, stable elasticity under -30°C low temperature and 120°C high temperature working conditions.
All finished products pass 28MPa ultra-high pressure fatigue aging test. Effectively isolate nitrogen chamber and hydraulic oil circuit, eliminate nitrogen loss, oil mixing inside accumulator, maintain stable breaker impact force, avoid weak breaking efficiency caused by diaphragm damage.
Equipped with matched piston cup, sealing O-rings and anti-extrusion backup rings needed for full accumulator maintenance. One set covers all sealing spare parts, reduce parts matching trouble and cut overall equipment maintenance cost.
Every diaphragm set undergoes air tightness test, high-pressure pulse fatigue test and temperature alternating aging test before delivery, fully meets OEM manufacturing standards, stable reliable performance for long-term mining and construction heavy-duty use.
Suitable for MS45AT / MS900 MSB hydraulic breakers mounted on multiple engineering 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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