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 is custom engineered for Montabert BRV32, BRH250, BRH501, BRH570, BRH625 hydraulic rock breakers. It serves as the core nitrogen isolation component for breaker accumulators, matching full set of matching O-rings and backup gaskets for complete accumulator overhaul.
Manufactured with imported high-performance HNBR and reinforced FKM fluororubber with fiber cloth reinforcement, this diaphragm boasts outstanding oil resistance, nitrogen aging resistance, repeated impact fatigue resistance and wide temperature adaptability. It perfectly replaces original Montabert OEM diaphragms, solves common failures including nitrogen leakage, insufficient impact force, unstable blow frequency and accumulator pressure loss, and greatly extends breaker service life under long-term mining, demolition and heavy crushing operations.
Item |
Detailed Parameter |
Product Name |
Montabert Hydraulic Breaker Accumulator Diaphragm & Seal Cup Kit |
Applicable Model |
BRV32, BRH250, BRH501, BRH570, BRH625 Montabert Rock Breakers |
Compatible Series |
Montabert BR Series Hydraulic Hammer |
Main Material |
Imported HNBR / FKM Fluororubber + Fiber Cloth Reinforcement |
Max Working Nitrogen Pressure |
32MPa |
Working Temperature |
-30°C ~ 130°C |
Kit Contents |
Accumulator diaphragm, seal cup, matching O-rings, flat gaskets, anti-extrusion backup rings |
Cross Reference OEM No. |
86248283, 86412053, 86633963, 86723764 |
Net Weight |
Approximately 0.8kg per full overhaul kit |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensionally consistent with original Montabert BRV32/BRH250/BRH501/BRH570/BRH625 breaker diaphragms, cross-referenced with official OEM part numbers 86248283, 86412053, 86633963, 86723764. No cutting, grinding or modification required for direct plug-and-play installation.
Core diaphragm adopts fiber-cloth reinforced HNBR & FKM composite rubber. Effectively resists hydraulic oil corrosion, nitrogen aging and high-frequency impact fatigue, maintaining stable elasticity under -30°C ~ 130°C wide temperature fluctuation, avoiding premature cracking and bulging.
Every diaphragm undergoes 32MPa high-pressure nitrogen sealing and cyclic impact fatigue testing before delivery. Effectively isolates hydraulic oil and nitrogen, eliminates internal gas leakage; keeps stable accumulator pressure to guarantee consistent impact energy and uniform blow frequency of the breaker.
Integrates diaphragm, seal cup and all supporting sealing accessories required for accumulator full maintenance. Complete matching parts eliminate the trouble of separate purchasing, shorten on-site repair downtime and reduce overall equipment maintenance cost.
All finished products pass air tightness, high nitrogen pressure, high-low temperature cycling and repeated impact aging tests, fully meeting Montabert OEM production standards, delivering stable and long-lasting performance in harsh construction and mining working conditions.
Suitable for Montabert BR series hydraulic breakers installed on various 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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