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 (nitrogen piston cup) is custom engineered for RAMMER series hydraulic rock breakers including S55, S56, E66, E68, BR2166, BR2266, BR2577, widely fitted on excavator demolition hammers, mining and road construction machinery. It serves as the core isolation component inside breaker accumulators, separating high-pressure nitrogen chamber and hydraulic oil circuit to stabilize impact energy output.
Adopted imported high-performance modified NBR + reinforced fiber composite rubber, the diaphragm features outstanding oil resistance, high-frequency fatigue resistance, tear resistance and wide temperature adaptability. It perfectly replaces original RAMMER OEM diaphragms, solves common failures like nitrogen leakage, unstable impact force and weak hammer blow, and extends breaker service life under continuous heavy demolition work.
Item |
Detailed Parameter |
Product Name |
Rammer S55/S56/E66/E68/BR2166/BR2266/BR2577 Hydraulic Breaker Accumulator Diaphragm (Piston Cup) |
Applicable Models |
RAMMER S55, S56, E66, E68, BR2166, BR2266, BR2577 Hydraulic Rock Breaker |
Compatible Series |
RAMMER Medium & Large Hydraulic Demolition Hammer Series |
Main Material |
Imported Modified NBR + Fiber Reinforced Composite Elastomer |
Max Working Pressure |
28MPa |
Working Temperature |
-30°C ~ 120°C |
Core Function Parts |
Nitrogen isolation diaphragm, integrated reinforced sealing edge, anti-tear buffer layer |
Cross Reference OEM No. |
RAMMER-S55, RAMMER-S56, RAMMER-E66, RAMMER-E68, RAMMER-BR2166, RAMMER-BR2266, RAMMER-BR2577 |
Net Weight |
Model-dependent, 0.3–0.9kg per piece |
Applicable System |
Breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional matched with original RAMMER breaker accumulator diaphragms, compatible with all listed hammer models and corresponding OEM part numbers. No trimming or modification required for direct plug-and-play installation.
Core diaphragm body adopts imported modified NBR with embedded fiber reinforcement layer. Superior anti-tear, anti-fatigue performance, withstands millions of high-frequency reciprocating deformation cycles without cracking, aging or elastic attenuation; stable performance from -30°C to 120°C with strong hydraulic oil & nitrogen corrosion resistance.
Each diaphragm undergoes 28MPa high-pressure nitrogen sealing test. Effectively stops internal nitrogen leakage and oil cross-contamination inside accumulators, maintains consistent striking force, avoids hammer weak blow, energy loss and frequent nitrogen refilling.
Standalone integrated diaphragm design, one piece covers full accumulator overhaul for matching RAMMER breakers. Simplifies spare part stocking, shortens on-site repair downtime and cuts overall equipment maintenance expenditure.
All finished diaphragms pass air tightness, high-pressure nitrogen aging, repeated stretching fatigue tests before delivery, fully meet RAMMER OEM production standards, guarantee long-term reliable performance under harsh demolition, quarry and mining working conditions.
Perfect fit for RAMMER S55/S56/E66/E68/BR2166/BR2266/BR2577 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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