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 SAGA200 and SAGA250 medium hydraulic rock breakers, widely equipped on 12–22 ton excavators for demolition, mining and road construction. The kit contains matched accumulator diaphragm, piston cup, auxiliary O-rings and anti-wear gaskets for complete breaker accumulator overhaul.
Adopted imported high-performance modified NBR and PPDI polyurethane composite materials, the parts feature outstanding oil resistance, high-frequency fatigue resistance, low temperature flexibility and high pressure bearing capacity. It perfectly replaces original MSB OEM diaphragm & piston cup, solves common failures such as nitrogen leakage, weak impact force, accumulator failure and abnormal breaker vibration, greatly extending the service life of hydraulic hammers under continuous heavy crushing operation.
Item |
DetailedParameter |
Product Name |
MSB SAGA200 SAGA250 Breaker Accumulator Diaphragm & Piston Cup Kit |
Applicable Model |
MSB SAGA200、MSB SAGA250 Medium Hydraulic Rock Breaker |
Compatible Series |
MSB SAGA Series Medium Hammer |
Main Material |
Imported Modified NBR + High Toughness PPDI Polyurethane Composite |
Max Working Pressure |
26MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Accumulator diaphragm, energy storage piston cup, matching O-rings, sealing gaskets, full overhaul auxiliary parts |
Cross Reference OEM No. |
MSB-SAGA200-DIA, MSB-SAGA250-CUP, 3089127001 |
Net Weight |
Approximately 0.62kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional consistent with original MSB SAGA200/SAGA250 breaker accumulator parts, matching OEM part numbers MSB-SAGA200-DIA, MSB-SAGA250-CUP and 3089127001. No cutting, grinding or modification required, direct one-to-one installation.
Core diaphragm and piston cup adopt imported PPDI polyurethane + modified NBR dual composite process. Excellent hydraulic oil corrosion resistance, anti-aging, high rebound elasticity; stable performance from -30°C low-temperature construction to 120°C high-temperature continuous crushing operation.
All finished products pass 26MPa high pressure and millions of times high-frequency reciprocating fatigue tests. Effectively isolate nitrogen chamber and hydraulic oil circuit, eliminate internal nitrogen leakage and external oil seepage, maintain stable accumulator energy storage, guarantee continuous powerful impact output of the breaker.
All matched sealing accessories required for accumulator maintenance are included in one set. Integrated matching parts avoid separate procurement of scattered components, shorten on-site repair time and reduce equipment downtime and maintenance cost.
Every diaphragm & piston cup kit undergoes air tightness test, high pressure burst test and aging endurance test before delivery, fully meets MSB original equipment manufacturing standards, stable and reliable long-term construction performance.
Suitable for MSB SAGA200 & SAGA250 hydraulic rock breakers mounted on multiple heavy-duty 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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