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 piston cup repair kit is specially developed for General GB170E hydraulic rock breakers, widely matched on medium-sized excavators for demolition, mining and road construction. The full set includes core energy storage diaphragm, piston cup, O-rings, gaskets and auxiliary sealing rings for complete accumulator overhaul maintenance.
Manufactured with imported modified NBR + high-toughness PU composite material, the kit features outstanding high-frequency fatigue resistance, nitrogen isolation and hydraulic oil aging resistance. It perfectly replaces original General GB170E OEM rubber parts, thoroughly solves common failures such as nitrogen leakage, weak impact force and unstable hammer output, and greatly extends the service life of the breaker under continuous heavy impact working conditions.
Item |
Detailed Parameter |
Product Name |
GB170E Hydraulic Breaker Diaphragm & Piston Cup Repair Kit |
Applicable Model |
GB170E Medium Hydraulic Rock Breaker |
Compatible Series |
General GB E Series Hydraulic Hammer |
Main Material |
Imported Modified NBR + High Toughness PU Composite Rubber + Reinforced Fiber Layer |
Max Working Pressure |
22.0MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Energy storage diaphragm, piston cup, O-rings, gaskets, anti-extrusion backup rings, full overhaul sealing accessories |
Cross Reference OEM No. |
GB-170E, GB170E-ACC001 |
Net Weight |
Approximately 0.68kg |
Applicable System |
Breaker accumulator nitrogen-hydraulic energy storage system |
Warranty |
12 Months |
Fully dimensional matched with original General GB170E rock breaker accumulator parts, consistent with OEM part numbers GB-170E and GB170E-ACC001. Direct installation without cutting or modification, perfectly fits the breaker back head accumulator cavity.
Core diaphragm and piston cup adopt imported PU-NBR composite raw material with fiber reinforcement layer. Excellent anti-fatigue performance against thousands of high-frequency reciprocating impacts per minute, oil-resistant, nitrogen penetration resistant and anti-aging, stable performance within -30°C ~ 120°C wide temperature range.
All components pass strict 22.0MPa high-pressure nitrogen tightness test. Effectively isolate high-pressure nitrogen chamber and hydraulic oil circuit, eliminate internal air leakage and oil seepage, maintain stable accumulator energy storage efficiency and consistent breaking impact force during long-time operation.
Integrates all sealing consumables required for GB170E breaker accumulator full maintenance. One-stop complete accessories reduce matching trouble, shorten on-site repair downtime and lower equipment overall operation maintenance cost.
Every diaphragm and piston cup set undergoes high-frequency fatigue cycle test, air tightness test and high-temperature aging test before delivery, fully meets OEM manufacturing standards, guarantees long-term reliable performance under harsh construction working conditions.
Suitable for General GB170E hydraulic breakers equipped on multiple medium-duty construction machinery: • Medium excavators (12–18 ton class: Sany 135, XCMG 150, Liugong 130, Lonking 155) • Road repair & pavement demolition equipment • Mine secondary rock crushing machinery • Municipal old building demolition equipment • Tunneling & foundation excavation machinery • Heavy-duty mobile hydraulic breaking 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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