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 D&A 32V, 43V, 60V series hydraulic rock breakers, widely fitted on medium & large excavators for mining, demolition and road construction. It acts as the core isolation component separating high-pressure nitrogen and hydraulic oil inside the breaker backhead accumulator.
Manufactured with imported high-performance HNBR & reinforced polyurethane composite material, the diaphragm features outstanding anti-fatigue, high impact resistance, oil aging resistance and wide temperature adaptability. It perfectly replaces original D&A OEM diaphragms, eliminates nitrogen leakage, unstable striking force and frequent early failure, and greatly extends breaker service life under continuous high-frequency impact working conditions.
Item |
Detailed Parameter |
Product Name |
D&A 32V 43V 60V Breaker Accumulator Diaphragm Seal Cup |
Applicable Model |
D&A 32V, D&A 43V, D&A 60V Hydraulic Rock Breaker |
Compatible Series |
D&A V Series Medium-Large Hydraulic Hammers |
Main Material |
Imported High Toughness HNBR + Reinforced PU Composite Layer |
Max Working Impact Pressure |
135MPa |
Working Temperature |
-35°C ~ 130°C |
Kit Contents |
Main diaphragm, auxiliary sealing ring, positioning gasket, wear-resistant backup ring |
Cross Reference OEM No. |
DA-32V-DIA, DA-43V-DIA, DA-60V-DIA, 32V0889, 43V1265, 60V1572 |
Net Weight |
Approximately 1.1kg per full repair set |
Applicable System |
Breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional matched with original D&A 32V/43V/60V breaker accumulator structure, consistent with OEM part numbers DA-32V-DIA, DA-43V-DIA, DA-60V-DIA. No cutting, grinding or modification required for direct on-site installation.
Core diaphragm adopts imported HNBR with thickened PU reinforcement layer. Ultra-high tensile & anti-fatigue performance, resistant to hydraulic oil corrosion, oxidation and hardening, stable elastic performance from -35°C low temperature to 130°C high temperature working environment.
All finished diaphragms pass 135MPa high-pressure impact cycle aging test. Effectively isolate nitrogen gas and hydraulic fluid, prevent slow nitrogen loss during long operation, maintain consistent impact energy and stable breaker output without power drop.
Equipped with all matching sealing accessories required for accumulator overhaul, including main diaphragm, O-rings, gaskets and wear-resistant backup rings. One set meets full maintenance demands, shorten repair downtime and reduce overall equipment operating cost.
Every batch undergoes air tightness testing, high-frequency fatigue impact test and high-low temperature aging screening before delivery. Fully meets D&A OEM production standards to guarantee long-term reliable performance in heavy-duty harsh working conditions.
Designed exclusively for D&A 32V, 43V, 60V hydraulic breakers equipped on various construction & mining 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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