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 kit is specially developed for MSB SAGA500 and SAGA510 hydraulic rock breakers, core energy storage sealing spare parts for medium-large excavator mounted demolition hammers. The complete set includes accumulator diaphragm, integral piston cup, auxiliary O-rings, gaskets and anti-extrusion backup rings for full nitrogen chamber overhaul.
Manufactured with imported modified FKM fluororubber + high-toughness reinforced NBR composite material, the kit features outstanding oil resistance, high-frequency fatigue resistance, low-temperature flexibility and heat stability. It perfectly matches original MSB OEM dimensions, thoroughly solves common failures like nitrogen leakage, impact power attenuation, breaker weak striking and hydraulic oil mixing with nitrogen, effectively extending continuous working life of hydraulic breakers under long-duration mining, demolition and heavy crushing conditions.
Item |
Detailed Parameter |
Product Name |
MSB SAGA500/SAGA510 Breaker Accumulator Diaphragm & Cup Kit |
Applicable Model |
MSB SAGA500, MSB SAGA510 Hydraulic Rock Breaker |
Compatible Series |
MSB SAGA Medium-Large Hydraulic Breaker Series |
Main Material |
Imported FKM Fluororubber + Reinforced Modified NBR + Polyurethane Backup Rings |
Max Working Impact Pressure |
120MPa |
Working Temperature |
-35°C ~ 115°C |
Kit Contents |
Accumulator diaphragm, energy storage piston cup, matching O-rings, sealing gaskets, anti-extrusion backup rings, full overhaul auxiliary seals |
Cross Reference OEM No. |
MSB-SAGA500-DIA, MSB-SAGA510-CUP, 3068921, 3068922 |
Net Weight |
Approximately 1.1kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
1. 100% OEM Exact Replacement. Fully dimensional compatible with original MSB SAGA500/SAGA510 breakers, consistent with OEM part numbers MSB-SAGA500-DIA, MSB-SAGA510-CUP, 3068921 and 3068922. Zero modification required for direct disassembly & installation.
2. Premium Composite Sealing Material. Core diaphragm and piston cup adopt high-performance FKM + reinforced NBR composite vulcanization process, with ultra-high fatigue resistance to withstand thousands of high-frequency stretching cycles per minute. Excellent hydraulic oil, anti-aging and anti-corrosion performance, stable elasticity between -35°C and 115°C.
3. Zero Nitrogen Leakage & Stable Striking Force. All components pass strict 120MPa high-pressure nitrogen sealing test. Completely isolate hydraulic oil chamber and nitrogen accumulator chamber, eliminate gas leakage, oil mixing and pressure loss, maintain consistent breaker impact energy without power drop during continuous heavy operation.
4. All-In-One Complete Overhaul Kit. Integrates all sealing accessories required for accumulator full maintenance. Complete supporting parts shorten on-site repair time and reduce equipment downtime and overall operation maintenance cost.
5. Strict Factory Quality Inspection. Every diaphragm cup kit undergoes air tightness, high-pressure fatigue and thermal aging testing before delivery, fully meets MSB OEM production standards, ensuring stable long-term performance in harsh construction environments.
6. Wide Application Scope. Suitable for MSB SAGA500 / SAGA510 hydraulic breakers matched on various heavy-duty engineering equipment:
• Medium & large excavators (20–36 ton: Sany, Liugong, XCMG, Doosan, Hyundai, Komatsu) • Mining rock crushing & secondary ore breaking • Municipal building demolition, reinforced concrete dismantling • Road reconstruction, pavement crushing, tunnel excavation • Quarry & stone yard processing equipment • Heavy-duty mobile hydraulic demolition 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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