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 cup diaphragm is specially developed for Montabert BRM700 hydraulic rock breakers. It serves as the core energy storage sealing component of the breaker nitrogen accumulator, matching the original cup diaphragm structure perfectly.
Adopted imported high-performance HNBR reinforced rubber material, it boasts outstanding impact fatigue resistance, hydraulic oil resistance, low-temperature flexibility and high-temperature aging resistance. It thoroughly solves common faults such as nitrogen leakage, insufficient striking force, diaphragm cracking and pressure attenuation, effectively stabilizing breaker output power and greatly extending service life under long-term heavy crushing operations.
Item |
Detailed Parameter |
Product Name |
MONTABERT BRM700 Breaker Accumulator Cup Diaphragm |
Applicable Model |
Montabert BRM700 / M700 Hydraulic Rock Breaker |
Compatible Series |
Montabert BRM Heavy-Duty Breaker Series |
Main Material |
Imported Reinforced HNBR Rubber + High Tensile Fabric Reinforcement |
Max Working Pressure |
32MPa |
Working Temperature |
-35°C ~ 135°C |
Kit Contents |
Integral accumulator cup diaphragm (complete single-piece replacement part) |
Cross Reference OEM No. |
86634052, 86634102 |
Net Weight |
Approximately 0.75kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensionally consistent with original Montabert BRM700 accumulator diaphragm, corresponding OEM part numbers 86634052 and 86634102. No cutting, grinding or modification required for direct installation, seamless assembly with original accumulator housing.
Core diaphragm body uses imported high-toughness HNBR rubber with internal fabric reinforcement layer. Superior anti-fatigue performance under frequent high-frequency impact, resistant to hydraulic oil erosion, ozone aging and embrittlement, stable elastic performance across -35°C to 135°C working range.
Each finished diaphragm undergoes 32MPa high-pressure nitrogen sealing test. Effectively lock accumulator nitrogen pressure, eliminate slow air leakage, pressure drop and weak hammer impact; maintain consistent striking energy for continuous crushing work.
Optimized bowl-shaped arc structure disperses instantaneous impact pressure evenly, avoids stress concentration cracking caused by long-term rock breaking. Anti-tear design greatly reduces replacement frequency and lowers equipment maintenance cost.
All diaphragms pass air tightness, high-frequency impact fatigue and high-low temperature aging tests before delivery, fully meet Montabert OEM quality standards, stable and reliable for long-term mining and construction heavy-load working conditions.
Suitable for Montabert BRM700 hydraulic breakers equipped on various heavy-duty construction & mining machinery: • Large tonnage excavator mounted rock breakers • Open-pit mining stone crushing equipment • Tunnel excavation & mine secondary crushing • Highway & road concrete demolition • Municipal engineering foundation breaking • Reinforced concrete building dismantling • Quarry heavy rock splitting 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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