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 cup diaphragm (leather cup membrane) is custom engineered for K-OMAC KB1500 and OKB1500 hydraulic rock breakers, the core energy storage sealing component inside breaker nitrogen accumulators. It acts as an isolation barrier between high-pressure nitrogen and hydraulic oil, solving common failures like diaphragm rupture, nitrogen leakage, weak impact force and unstable hammer output.
Manufactured with imported high-strength PU/PPDI polyurethane composite material, the product features ultra-high fatigue resistance, oil resistance and wide temperature adaptability. It perfectly matches OEM original diaphragm size, directly replaces factory spare parts, extends breaker service cycle and reduces frequent maintenance downtime under continuous heavy crushing operation.
Item |
Detailed Parameter |
Product Name |
KB1500 / OKB1500 Hydraulic Breaker Accumulator Cup Diaphragm |
Applicable Model |
KB1500, OKB1500 Hydraulic Rock Breaker |
Compatible Series |
K-OMAC KB Series / OKB Heavy-Duty Breaker Series |
Main Material |
Imported High-performance PPDI Polyurethane + Reinforced Fiber Layer |
Max Working Pressure |
26.0MPa |
Working Temperature |
-30°C ~ 130°C |
Structure Composition |
Integral forming cup diaphragm, thickened edge anti-tear structure |
Cross Reference OEM No. |
KB1500-DIA, OKB1500-MEM, 3088216001 |
Net Weight |
Approximately 0.32kg |
Applicable System |
Breaker nitrogen accumulator gas-liquid isolation system |
Warranty |
12 Months |
Fully dimensionally consistent with original KB1500 & OKB1500 breaker diaphragms, matching OEM part numbers KB1500-DIA, OKB1500-MEM and 3088216001. No cutting, padding or modification required for direct installation, perfectly fits accumulator inner cavity.
Core diaphragm adopts premium PPDI polyurethane composite with fiber reinforcement layer. Outstanding hydraulic oil corrosion resistance, anti-aging, high rebound elasticity, stable performance between -30°C and 130°C, no hardening or brittle cracking under long-time high-frequency impact cycles.
All finished diaphragms pass 26.0MPa fatigue burst testing. Thickened flange edge design effectively avoids edge tearing during frequent nitrogen expansion & contraction. Eliminates gas-oil mixing, nitrogen leakage and insufficient striking power, keeps breaker impact energy consistent all day long.
Independent finished cup diaphragm, ready for direct replacement without extra auxiliary gaskets. Simplifies breaker accumulator overhaul steps, shortens on-site repair time and lowers overall equipment operation maintenance cost.
Each batch undergoes air tightness test, high-pressure fatigue test and thermal aging test before delivery, fully meets OEM manufacturing standards. Stable long-term working performance for mining, demolition and other harsh working conditions.
Designed exclusively for KB1500 / OKB1500 hydraulic rock breakers mounted on excavators, widely used in below heavy-duty working scenarios: • Quarry mining & stone secondary crushing • Building reinforced concrete demolition • Highway road surface breaking & foundation excavation • Tunnel engineering, mountain rock excavation • Municipal old city reconstruction & pipeline trench digging • Metallurgical slag cleaning & furnace dismantling • Heavy mobile machinery hydraulic crushing 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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