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 repair kit is specially developed for MSB SAGA300, SAGA310, SAGA350, SAGA400 hydraulic rock breakers, widely matched on medium and large excavators for demolition, mining and quarry construction. The full set includes accumulator rubber diaphragm, main seal cup, O-rings, gaskets and back-up rings for complete breaker overhaul maintenance.
Made of imported high-performance PPDI composite rubber + reinforced fiber layer, the kit delivers outstanding impact resistance, oil resistance, high temperature resistance and anti-tear performance. It fully replaces original MSB OEM rubber parts, solves common faults such as nitrogen leakage, insufficient impact force and unstable breaking power, and greatly extends breaker service life under long-term heavy impact working conditions.
Item |
Detailed Parameter |
Product Name |
MSB SAGA Series Hydraulic Breaker Diaphragm & Seal Cup Kit |
Applicable Model |
SAGA300, SAGA310, SAGA350, SAGA400 |
Compatible Series |
MSB SAGA Medium-Large Hydraulic Rock Breaker Series |
Main Material |
Imported PPDI high elastic composite rubber + fiber reinforced layer |
Max Working Nitrogen Pressure |
18MPa |
Working Temperature |
-30°C ~ 150°C |
Kit Contents |
Accumulator diaphragm, main seal cup, O-rings, flat gaskets, PTFE backup rings, full overhaul sealing accessories |
Cross Reference OEM No. |
MSB-SAGA300, MSB-SAGA310, MSB-SAGA350, MSB-SAGA400, 2099704128 |
Net Weight |
Approximately 1.1kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional matched with original MSB SAGA300/310/350/400 breakers, consistent with OEM part numbers. No cutting, grinding or modification required for direct on-site installation, perfectly fit accumulator cavity structure.
Core diaphragm and seal cup adopt premium PPDI composite rubber with fiber reinforcement layer, featuring ultra-high rebound elasticity, anti-tear and anti-fatigue performance. Stable performance under -30°C low temperature to 150°C high hydraulic oil temperature, not easy to harden, crack or lose elasticity under frequent impact cycles.
All components pass strict 18MPa high-pressure nitrogen sealing test. Effectively prevent accumulator air leakage, maintain stable energy storage pressure, avoid weak impact, intermittent hammering and low breaking efficiency, keep continuous stable breaking output of the hammer.
Integrates all sealing consumables needed for full breaker disassembly maintenance. One set covers diaphragm, seal cup and all auxiliary seals, reduces spare parts procurement cost and shortens equipment maintenance downtime.
Every finished kit undergoes air tightness impact cycle test, high temperature aging test and dimensional inspection before delivery. Reach MSB original equipment quality standard, reliable long-term operation in harsh mining and construction sites.
Designed for MSB SAGA300/SAGA310/SAGA350/SAGA400 hydraulic breakers mounted on multiple heavy machinery:
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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