33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]

This heavy-duty accumulator diaphragm & leather cup assembly is specially developed for D&A 252B hydraulic rock breakers, widely matched on medium excavator demolition machinery. It is the core energy storage sealing part of the breaker nitrogen accumulator, isolating high-pressure nitrogen and hydraulic oil completely. Manufactured with imported reinforced FKM fluororubber + high-toughness fabric-reinforced leather composite material, it features outstanding fatigue resistance, high pressure resistance and oil aging resistance. It directly replaces original D&A spare parts, solves common faults such as nitrogen leakage, insufficient impact force and rapid pressure attenuation, and greatly extends continuous working life of the breaker under frequent high-frequency impact operations.
Item |
Detailed Parameter |
Product Name |
D&A 252B Breaker Accumulator Diaphragm & Leather Cup |
Applicable Model |
D&A 252B Medium Hydraulic Rock Breaker |
Compatible Series |
D&A 250 Series Hydraulic Hammer |
Main Material |
Imported Reinforced FKM Fluororubber + Fabric Reinforced Leather Cup |
Max Working Pressure |
22.0MPa |
Working Temperature |
-25°C ~ 115°C |
Kit Contents |
Integrated diaphragm, leather cup, auxiliary O-rings, anti-extrusion backing rings |
Cross Reference OEM No. |
DA-252B, 3072116892 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
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