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 JSC JSB81 and JSB100 hydraulic rock breakers, widely matched on medium-small excavator hydraulic hammers for demolition, mining and road construction. The package integrates complete accumulator diaphragm, piston seal cups, O-rings, gaskets and anti-extrusion backup rings for full breaker accumulator overhaul.
Manufactured with imported high-toughness reinforced NBR and FKM fluororubber with fabric interlayer, the kit delivers outstanding hydraulic oil resistance, anti-fatigue, tear resistance and wide temperature adaptability. It perfectly replaces original JSC breaker rubber parts, effectively solving common failures including accumulator air leakage, pressure attenuation, hammer weak impact and frequent rubber damage, greatly extending the service life of hydraulic breakers under continuous high-frequency impact working conditions.
Item |
Detailed Parameter |
Product Name |
JSB81 JSB100 Hydraulic Breaker Diaphragm & Seal Cup Kit |
Applicable Model |
JSB81, JSB100 Hydraulic Rock Breaker |
Compatible Series |
JSC JSB Series Medium Hydraulic Hammer |
Main Material |
Imported Reinforced Fabric NBR / FKM Fluororubber + Reinforced Backup Ring |
Max Working Pressure |
23MPa |
Working Temperature |
-25°C ~ 115°C |
Kit Contents |
Accumulator diaphragm, piston seal cups, O-rings, gaskets, anti-extrusion backup rings, full accumulator repair accessories |
Cross Reference OEM No. |
JSC-JSB81, JSC-JSB100, 30810026, 31000158 |
Net Weight |
Approximately 0.68kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensionally consistent with original JSC JSB81/JSB100 breaker rubber parts, matches OEM part numbers JSC-JSB81, JSC-JSB100, 30810026, 31000158. Direct plug-and-play installation without cutting, grinding or modification.
Core diaphragm and piston cup adopt fabric-reinforced imported FKM composite rubber, with strong anti-tear and anti-fatigue performance. Resist hydraulic oil corrosion, high-frequency impact fatigue and aging, stable operation under -25°C ~ 115°C variable temperature environment.
All components pass 23MPa high pressure nitrogen sealing test. Eliminate accumulator internal air leakage and pressure loss, maintain stable nitrogen energy storage, guarantee consistent hammer impact force and avoid weak breaking efficiency caused by rubber failure.
Contains all sealing and rubber consumables required for full disassembly and maintenance of JSB81/JSB100 accumulator. One-stop complete parts reduce spare parts stocking types, shorten on-site maintenance time and lower equipment operation & maintenance cost.
Every diaphragm & seal cup kit undergoes air tightness, high-frequency impact fatigue and high-low temperature aging tests before delivery. Strictly conform to OEM manufacturing standards, stable and reliable long-term heavy-load construction performance.
Suitable for JSC JSB81, JSB100 hydraulic rock breakers installed on various construction heavy machinery: • Medium & small excavators (6–18 ton class: SWE90, Sunward 80, Lovol 75, Liugong 908, XCMG 75) • Backhoe loaders with hydraulic hammer attachments • Road renovation & demolition engineering machinery • Quarry & mine secondary crushing equipment • Municipal old building demolition equipment • Mobile hydraulic breaking heavy 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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