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 & piston cup repair kit is specially developed for D&A 150V, 180V, 181V hydraulic rock breakers, widely matched on medium and large excavator demolition machinery. The full set includes accumulator diaphragm, piston cup, auxiliary O-rings, gaskets and positioning backup rings for complete breaker accumulator overhaul.
Constructed with imported high-performance PPDI polyurethane + modified HNBR composite material, the kit delivers outstanding high-frequency fatigue resistance, hydraulic oil resistance, wide temperature adaptability and impact wear resistance. It fully replaces original D&A rubber diaphragm parts, thoroughly solves common failures like nitrogen-oil mixing, accumulator pressure attenuation, weak impact force and frequent diaphragm rupture, greatly extending breaker service life under continuous heavy crushing operation.
Item |
Detailed Parameter |
Product Name |
D&A 150V/180V/181V Hydraulic Breaker Diaphragm & Piston Cup Kit |
Applicable Model |
D&A 150V / D&A 180V / D&A 181V Rock Breaker |
Compatible Series |
D&A V Series Hydraulic Hammer Accumulator Parts |
Main Material |
Imported PPDI Polyurethane + Modified HNBR Rubber + Reinforced Steel Backup Ring |
Max Working Impact Pressure |
130MPa |
Working Temperature |
-35°C ~ 135°C |
Kit Contents |
Accumulator diaphragm, piston cup, matching O-rings, sealing gaskets, positioning backup rings, full overhaul accessories |
Cross Reference OEM No. |
D&A-150V-DIA, D&A-180V-DIA, D&A-181V-DIA, 3062150, 3062180, 3062181 |
Net Weight |
Approximately 1.2kg |
Applicable System |
Hydraulic breaker nitrogen accumulator gas-liquid isolation system |
Warranty |
12 Months |
Fully dimensional matched for original D&A 150V/180V/181V hydraulic breakers, consistent with OEM part numbers D&A-150V-DIA, D&A-180V-DIA, D&A-181V-DIA and factory spare codes 3062150/3062180/3062181. No cutting, grinding or modification required for direct plug-and-play installation.
Core diaphragm and piston cup adopt high-tenacity PPDI polyurethane compound, matched with modified HNBR auxiliary seals. Superior oil corrosion resistance, anti-aging and high rebound performance, stably operate in harsh temperature range from -35°C to 135°C, withstand millions of high-frequency reciprocating impacts without cracking or permanent deformation.
All components pass strict 130MPa high-pressure fatigue testing. Effectively block nitrogen and hydraulic oil mixing inside accumulator, avoid pressure drop and impact attenuation during continuous crushing; maintain stable energy storage efficiency to guarantee consistent breaker striking force.
Integrates all diaphragm maintenance consumables needed for D&A 150V/180V/181V hammer accumulator disassembly and repair. Integrated complete parts reduce spare parts matching time, shorten equipment downtime and lower overall construction operation maintenance cost.
Every diaphragm kit undergoes air tightness cycling test, high-frequency impact fatigue test and high-low temperature aging test before delivery, fully meets D&A original equipment manufacturing standards, ensuring stable long-term performance under mining, demolition and road construction heavy-duty working conditions.
Suitable for D&A 150V/180V/181V hydraulic rock breakers mounted on various medium & heavy construction machinery: • Medium & large tonnage excavators (12–36 ton class Sany, XCMG, Liugong, Sunward, Lovol excavators) • Mobile demolition breakers • Mining secondary crushing equipment • Highway & municipal road renovation machinery • Old building reinforced concrete dismantling equipment • Quarry rock splitting & excavation hydraulic hammer • Heavy-duty mobile crushing construction 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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