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 assembly is custom-engineered for Inan Makina MTB65 hydraulic rock breakers, the core energy storage sealing component of small and medium-sized excavator hammers. It integrates reinforced piston cup and integral diaphragm to fully isolate nitrogen chamber and hydraulic oil circuit, solving frequent failures like nitrogen leakage, impact force attenuation and accumulator failure.
Adopted imported reinforced NBR & FKM fluororubber with multi-layer cloth reinforcement, the part boasts outstanding fatigue resistance, high pressure resistance and hydraulic oil aging resistance. It perfectly replaces original MTB65 OEM diaphragm & piston cup, restores full hammer impact power and extends the service cycle of the whole breaker under continuous rock breaking, demolition and heavy construction conditions.
Item |
Detailed Parameter |
Product Name |
MTB65 Hydraulic Breaker Accumulator Diaphragm & Piston Cup |
Applicable Model |
MTB65 Medium-Sized Hydraulic Rock Breaker |
Compatible Series |
Inan Makina MTB Series Hammer |
Main Material |
Imported Reinforced NBR / FKM Fluororubber + Nylon Cloth Reinforcement Layer |
Max Working Pressure |
23MPa |
Working Temperature |
-25°C ~ 115°C |
Kit Contents |
Integral diaphragm, reinforced piston cup, positioning gasket, auxiliary sealing O-rings |
Cross Reference OEM No. |
MTB65-DIA, 45B0128A07 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Breaker nitrogen accumulator energy storage sealing system |
Warranty |
12 Months |
Fully matched with original MTB65 hydraulic breaker accumulator structure, consistent with OEM part numbers MTB65-DIA and 45B0128A07. Zero modification required for direct installation, fits perfectly without clearance or extrusion leakage.
Core diaphragm and piston cup adopt cloth-reinforced FKM composite rubber, with excellent anti-tear, oil-resistant and high-temperature resistant performance. Stable elastic recovery at -25°C ~ 115°C long-term working environment, no hardening, cracking or elastic attenuation under high-frequency reciprocating deformation.
All finished products pass 23MPa high-pressure nitrogen sealing test. Effectively block nitrogen escape and hydraulic oil channeling, maintain stable accumulator energy storage capacity, avoid hammer weak striking force, frequent nitrogen refilling and construction efficiency drop.
Complete matching combination of diaphragm, piston cup and auxiliary gaskets for one-time accumulator overhaul. Integrated spare parts reduce separate procurement cost and shorten on-site maintenance downtime.
Every diaphragm & piston cup set undergoes air tightness, high-frequency fatigue cycling and thermal aging tests before delivery, fully meets OEM production standards, guarantees long-term reliable operation under harsh mining and demolition working conditions.
Suitable for MTB65 hydraulic rock breakers matched with multiple construction 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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