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 and seal cup repair kit is specially engineered for JSC JSB210 hydraulic rock breakers, widely matched on 20–26 ton excavators for mine crushing, concrete demolition and road construction. The set integrates accumulator diaphragm, integral seal cup, full set of O-rings, piston seals, gaskets and backup rings to complete full breaker overhaul maintenance.
Adopted imported high-performance HNBR and FKM fluororubber composite materials, the kit delivers outstanding shock resistance, oil resistance, high-low temperature resistance and anti-fatigue performance. It perfectly replaces original JSC OEM rubber parts, solves common failures including accumulator pressure loss, diaphragm rupture, seal cup oil leakage and weak impact force, greatly extending breaker service life under long-term high-frequency impact operation.
Item |
Detailed Parameter |
Product Name |
JSC JSB210 Breaker Diaphragm & Seal Cup Repair Kit |
Applicable Model |
JSB210 Hydraulic Rock Breaker |
Compatible Series |
JSC JSB Heavy-Duty Breaker Series |
Main Material |
Imported HNBR / FKM Fluororubber + Reinforced Nylon Backup Ring + Metal Reinforced Diaphragm Core |
Max Working Pressure |
26MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Accumulator diaphragm, integral seal cup, piston shaft seals, O-rings, gaskets, wear-resistant backup rings, full overhaul spare parts |
Cross Reference OEM No. |
JSC-JSB210, 3115210001 |
Net Weight |
Approximately 1.2kg |
Applicable System |
Hydraulic breaker nitrogen accumulator system & main cylinder sealing system |
Warranty |
12 Months |
Fully dimensionally consistent with original JSC JSB210 breaker parts, matches OEM part numbers JSC-JSB210 and 3115210001. Zero modification required for direct installation, no air leakage or pressure drop after assembly.
Core diaphragm and seal cup adopt thickened HNBR composite rubber with built-in metal skeleton, matched with FKM high-temperature oil-resistant sealing rings. Anti-tear, anti-aging, anti-nitrogen corrosion, stable operation under -30°C ~ 120°C severe working conditions.
All components pass 26MPa high-pressure nitrogen fatigue impact test. Effectively avoid diaphragm cracking, seal cup swelling and internal-external oil leakage, maintain stable accumulator nitrogen pressure, guarantee continuous and powerful breaker impact output.
Contains all diaphragm, seal cup and sealing accessories required for full breaker maintenance. One set meets all overhaul demands, shorten on-site repair time and reduce equipment downtime and operation cost.
Every kit undergoes air tightness test, high-pressure nitrogen aging test and repeated impact fatigue test before delivery, fully meets OEM production standards, stable and reliable long-term construction performance.
Suitable for JSC JSB210 hydraulic breakers mounted on various heavy-duty excavators and engineering 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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