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 cup is specially engineered for MTB MTB25 hydraulic rock breakers, widely fitted on small & medium excavators for quarrying, demolition and road construction. It is the core energy storage sealing part inside the breaker accumulator, isolating high-pressure nitrogen and hydraulic oil completely.
Adopted imported high-performance HNBR rubber with reinforced tensile layer, this diaphragm delivers outstanding fatigue resistance, oil resistance and wide temperature adaptability. It perfectly replaces original MTB OEM diaphragm, solves common faults like nitrogen leakage, weak impact force and frequent energy loss, and greatly extends breaker service life under long-period high-frequency striking operation.
Item |
Detailed Parameter |
Product Name |
MTB MTB25 Hydraulic Breaker Accumulator Diaphragm Cup |
Applicable Model |
MTB MTB25 Rock Hammer |
Compatible Series |
MTB Small Hydraulic Breaker Series |
Main Material |
Imported High-toughness HNBR Reinforced Rubber |
Max Working Pressure |
120MPa |
Working Temperature |
-35°C ~ 135°C |
Product Structure |
Integral forming diaphragm with thickened edge tensile ring |
Cross Reference OEM No. |
MTB-MTB25, 45B0116MT25 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully matched with original MTB MTB25 hydraulic breaker accumulator cavity, consistent with OEM part numbers MTB-MTB25 and 45B0116MT25. No cutting, grinding or modification required for direct installation.
Core diaphragm body adopts imported modified HNBR rubber with fiber-reinforced edge, featuring excellent hydraulic oil corrosion resistance, anti-aging and ultra-high tensile fatigue performance, stable operation under -35°C to 135°C severe working environment.
All finished diaphragms pass 120MPa high-pressure air tightness cycle test. It avoids nitrogen leakage and insufficient energy storage, maintains consistent breaker impact force, reduces machine power consumption and improves construction efficiency.
Optimized vulcanization molding process, can withstand millions of high-frequency reciprocating stretch without cracking, deformation or elastic failure, effectively lowering frequent replacement cost and machine downtime.
Each diaphragm undergoes air tightness, high pressure fatigue and aging accelerated tests before delivery, meets original MTB production standards, ensures stable and reliable performance in heavy construction scenarios.
Suitable for MTB MTB25 hydraulic rock breakers equipped 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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