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 specially engineered for MTB360 hydraulic rock breakers, widely equipped on medium & large excavators for mining, demolition and road construction. It serves as the core sealing component of breaker accumulator, fully isolating nitrogen chamber and hydraulic oil circuit.
Adopted imported high-performance HNBR modified rubber with reinforced fiber layer, the product features outstanding fatigue resistance, oil resistance, low-temperature & high-temperature tolerance. It perfectly replaces original MTB diaphragm parts, solves typical failures including nitrogen leakage, insufficient impact force, unstable pressure and frequent breaker stall, greatly extending breaker service life under continuous heavy impact operation.
Item |
Detailed Parameter |
Product Name |
MTB360 Hydraulic Breaker Diaphragm & Piston Cup Assembly |
Applicable Model |
MTB360 Medium-large Hydraulic Rock Breaker |
Compatible Series |
MTB Full Series Hydraulic Hammer |
Main Material |
Imported High-strength HNBR Rubber + Fiber Reinforced Layer |
Max Working Pressure |
125MPa |
Working Temperature |
-35°C ~ 135°C |
Kit Contents |
Main diaphragm, piston cup, auxiliary O-rings, backup sealing rings, complete repair accessories |
Cross Reference OEM No. |
MTB-360, 45B0116MT360 |
Net Weight |
Approximately 1.1kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully matched with original MTB360 breaker accumulator structure, consistent with OEM part numbers MTB-360 and 45B0116MT360. Standard size without cutting or modification, direct plug-and-play installation.
Core diaphragm and piston cup adopt high-durability HNBR rubber with internal fiber reinforcement. Excellent anti-fatigue performance against thousands of high-frequency reciprocating impacts every minute, stable elasticity within -35°C to 135°C, resistant to hydraulic oil corrosion and aging cracking.
All finished products pass strict 125MPa high-pressure fatigue cycle tests. Effectively block nitrogen escape and hydraulic oil cross-leakage, maintain stable accumulator energy storage, guarantee consistent breaker impact energy and continuous construction efficiency.
Contains all supporting sealing accessories required for full accumulator overhaul. One set meets one-time repair demand, shorten equipment downtime and reduce overall operation & maintenance cost.
Every batch of diaphragm assemblies undergoes dimensional inspection, air tightness test, high-pressure fatigue test and thermal aging test before delivery, fully compliant with OEM production standards to ensure long-term reliable performance in harsh construction sites.
Suitable for MTB360 hydraulic rock breakers mounted on various heavy-duty engineering equipment: • Medium & large excavators (20-36 tonnage: Sany 215/245, XCMG 240, Liugong 926, Lovol 260) • Mine rock crushing equipment • Building demolition machinery • Road pavement breaking & renovation equipment • Quarry stone excavation equipment • Heavy-duty mobile hydraulic breaking systems
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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