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TOYO656-HIGH Breaker Piston Cup & Diaphragm

TOYO656-HIGH Breaker Piston Cup & Diaphragm

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TOYO656-HIGH Breaker Piston Cup & Diaphragm
TOYO656-HIGH Breaker Piston Cup & Diaphragm
TOYO656-HIGH Breaker Piston Cup & Diaphragm
TOYO656-HIGH Breaker Piston Cup & Diaphragm

Product Overview

This heavy-duty accumulator piston cup & diaphragm is specially developed for TOYO TOYO656-HIGH hydraulic rock breakers, the core sealing component of breaker nitrogen accumulator system widely equipped on medium & large excavators for demolition and mining work. It integrates integrated piston cup and high-elastic diaphragm to fully isolate nitrogen chamber and hydraulic oil circuit.

Manufactured with imported high-performance HNBR fluororubber composite material via secondary vulcanization molding, it delivers outstanding high-frequency fatigue resistance, hydraulic oil resistance and high-low temperature stability. Directly replace original TOYO OEM diaphragm, thoroughly solve common failures including nitrogen leakage, impact power drop, breaker overheating and short service life under continuous heavy crushing operation, greatly extend accumulator and whole breaker service cycle.

Product Specifications

Item

Detailed Parameter

Product Name

TOYO656-HIGH Hydraulic Breaker Piston Cup & Diaphragm

Applicable Model

TOYO656-HIGH High-pressure Version Hydraulic Rock Breaker

Compatible Series

TOYO 656 Series Hydraulic Hammer (High-pressure accumulator type)

Main Material

Imported Modified HNBR + Reinforced Fiber Composite Layer

Max Working Pressure

28MPa

Working Temperature

-35°C ~ 180°C

Kit Contents

Integrated piston cup, main diaphragm, auxiliary sealing gaskets, positioning retaining rings

Cross Reference OEM No.

TOYO-656-H, 3115656H01

Net Weight

Approximately 0.32kg

Applicable System

Breaker nitrogen accumulator energy storage sealing system

Warranty

12 Months

Key Selling Points

  • 1. 100% OEM Direct Replacement. Perfect dimensional matching for original TOYO656-HIGH breaker accumulator, corresponds to OEM part numbers TOYO-656-H and 3115656H01. No cutting, grinding or modification required for one-step installation.
  • 2. Premium Composite Sealing Material. Core diaphragm and piston cup adopt imported reinforced HNBR material with fiber interlayer, anti-aging, anti-oil corrosion and anti-high-frequency fatigue, stable elastic performance within -35°C to 180°C wide temperature range.
  • 3. Zero Nitrogen Leakage & Stable Impact Energy. All finished products pass 28MPa ultra-high pressure air tightness cycle test. Effectively prevent nitrogen-oil mixing, maintain constant accumulator pressure, ensure consistent breaker impact force without power attenuation during long-hour continuous crushing.
  • 4. Integrated All-in-One Repair Accessory. Complete set of matching sealing spare parts for full accumulator overhaul, avoid separate purchasing scattered accessories, shorten on-site maintenance time and reduce equipment downtime cost.
  • 5. Rigorous Factory Quality Inspection. Every batch of diaphragm assemblies undergoes high-frequency reciprocating fatigue test, high temperature aging test and pressure holding leakage test before delivery, fully meets OEM manufacturing standards with stable long-term construction site performance.
  • 6. Wide Application Scope. Matches TOYO656-HIGH hydraulic breakers mounted on various heavy-duty construction equipment:
  • Medium & large tonnage excavators (12–22 ton class: SANY135, XCMG150, SDLG160, CAT312)
  • Hydraulic rock breaking hammers for mining operations
  • Demolition machinery for old building dismantling
  • Highway & municipal road surface crushing equipment
  • Quarry stone secondary crushing equipment
  • Heavy-duty mobile hydraulic demolition attachments

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