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 rubber diaphragm (breaker cup seal) is specially customized for Eddie EDT9500F and EDT10000 hydraulic rock breakers. It is the core sealing component of the breaker nitrogen accumulator, used to isolate high-pressure nitrogen and hydraulic oil completely.
Adopted imported reinforced HNBR / FKM fluororubber composite material with special vulcanization forming process, the diaphragm features outstanding fatigue resistance, oil resistance, high pressure resistance and low temperature flexibility. It thoroughly solves common faults such as nitrogen leakage, hydraulic oil mixing, weak impact force and pressure attenuation, greatly extending the service life of EDT series large hydraulic breakers under continuous high-frequency heavy crushing operation.
Item |
Detailed Parameter |
Product Name |
EDT9500F / EDT10000 Hydraulic Breaker Accumulator Diaphragm (Cup Seal) |
Applicable Models |
EDT9500F, EDT10000 Large Hydraulic Rock Breaker |
Compatible Series |
Eddie EDT Heavy-Duty Hydraulic Breaker Series |
Main Material |
Imported Reinforced HNBR + FKM Fluororubber Composite |
Max Instant Impact Pressure |
52MPa |
Working Temperature |
-35°C ~ 135°C |
Product Structure |
Integral one-piece forming, reinforced thickened edge anti-tear design |
Cross Reference OEM No. |
EDT9500-012, EDT10000-008 |
Net Weight |
Approximately 0.85kg |
Applicable System |
Breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
Precisely consistent with original Eddie OEM drawing dimensions, fully compatible with EDT9500F and EDT10000 breakers, corresponding OEM part numbers EDT9500-012 and EDT10000-008. No cutting, trimming or modification required for quick on-site installation, perfectly matching accumulator inner cavity structure.
Core diaphragm body adopts imported HNBR base material compounded with FKM fluororubber, plus fiber-reinforced edge treatment. It resists hydraulic oil corrosion, high temperature aging and low-temperature hardening, maintains stable elasticity at -35°C ~ 135°C, and withstands millions of high-frequency stretching cycles without cracking or permanent deformation.
All finished diaphragms pass strict 52MPa instantaneous impact pressure and air tightness testing. Effectively blocks nitrogen leakage and hydraulic oil backflow into the nitrogen chamber, maintains stable accumulator pressure, eliminates problems of weak striking force, unstable impact frequency and increased fuel consumption caused by failed original diaphragms.
The outer sealing edge is thickened and reinforced with fiber interlayer, avoiding edge tearing and local damage under long-term high-pressure reciprocating deformation. Compared with ordinary domestic rubber diaphragms, service life is increased by more than 2 times, reducing frequent shutdown maintenance cost.
Each batch of diaphragms undergoes raw material tensile test, vulcanization hardness inspection, air tightness aging test and high-frequency fatigue impact test before delivery, fully meets Eddie OEM manufacturing standards, ensuring stable and reliable long-term operation in harsh construction environments.
Specially matched for EDT9500F / EDT10000 large hydraulic breakers on heavy-duty construction machinery:
• Open-pit mining & stone quarry crushing
• Tunnel excavation and underground engineering
• Highway & road foundation demolition
• Reinforced concrete building dismantling
• Large mine slag clearing
• Heavy-duty excavator supporting crushing operation
• High-intensity continuous construction working conditions
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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