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 repair kit is specially developed for MSB series hydraulic rock breakers MS55AT, MS1000, widely matched on medium and large excavator hammer attachments for mining, demolition and road construction. The package includes integrated accumulator diaphragm, piston cup, matched O-rings, gaskets and backup sealing rings for complete breaker accumulator overhaul.
Manufactured with imported modified NBR and high-toughness PU composite rubber, the diaphragm cup features outstanding oil resistance, anti-fatigue stretching, wear and high pressure resistance. It perfectly replaces original MSB OEM rubber parts, solves common faults such as nitrogen leakage, insufficient impact force, pressure attenuation and diaphragm rupture, greatly extending continuous working life of breakers under long-period high-frequency impact heavy-load operation.
Item |
Detailed Parameter |
Product Name |
MSB MS55AT MS1000 Breaker Accumulator Diaphragm Cup Kit |
Applicable Model |
MS55AT, MS1000 MSB Series Hydraulic Rock Breaker |
Compatible Series |
MSB Medium & Large Hydraulic Hammer Series |
Main Material |
Imported Modified NBR + Reinforced PU Composite Diaphragm + PTFE Backup Ring |
Max Working Pressure |
28MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Accumulator diaphragm, piston cup, full set O-rings, gaskets, wear-resistant backup rings, complete overhaul sealing accessories |
Cross Reference OEM No. |
MSB-MS55AT, MSB-MS1000, 3089226100 |
Net Weight |
Approximately 1.2kg |
Applicable System |
Breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
Fully dimensional matched with original MSB MS55AT / MS1000 breaker accumulator components, consistent with OEM part numbers MSB-MS55AT, MSB-MS1000, 3089226100. No cutting, grinding or modification needed for direct quick installation.
Core diaphragm and piston cup adopt imported modified NBR + reinforced PU vulcanized composite material, added anti-aging and anti-stretching formula. Effectively resist hydraulic oil corrosion, high-frequency cyclic deformation, stable performance under -30°C ~ 120°C severe working environment, effectively avoid premature rupture.
All sealing assemblies pass strict 28MPa ultra-high pressure fatigue cycle test. Thoroughly isolate hydraulic oil and nitrogen cavity, eliminate internal nitrogen leakage and external oil seepage faults, maintain constant accumulator pressure, guarantee stable breaker impact frequency and striking force without power drop.
Contains all sealing and diaphragm spare parts required for full accumulator maintenance of MS55AT & MS1000 breakers. Integrated matching parts reduce spare parts sorting time, shorten equipment maintenance downtime and lower overall construction operating cost.
Every diaphragm cup kit undergoes air tightness test, high pressure fatigue test, high-low temperature aging test before delivery, fully meets OEM production standards, ensures long-term stable and reliable performance under continuous heavy construction load.
Fit for MS55AT, MS1000 MSB hydraulic rock breakers mounted on various heavy construction 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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