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BS560 BS585 Accumulator Diaphragm & Piston Cup

BS560 BS585 Accumulator Diaphragm & Piston Cup

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BS560 BS585 Accumulator Diaphragm & Piston Cup
BS560 BS585 Accumulator Diaphragm & Piston Cup

Product Overview

This heavy-duty accumulator diaphragm & piston cup set is custom engineered for BRESTA BS560 / BS585 hydraulic rock breakers, widely fitted on medium & large excavator hydraulic hammers for mining, demolition and road construction. The package includes integrated energy storage diaphragm, wear-resistant piston cup, auxiliary sealing gaskets and positioning washers for full accumulator overhaul replacement.

Manufactured with imported reinforced NBR + FKM fluororubber composite material with high-strength fabric interlayer, the product delivers outstanding fatigue resistance, hydraulic oil resistance, abrasion and low/high temperature tolerance. It perfectly matches original BRESTA spare parts, effectively solving common failures including nitrogen leakage, insufficient impact force, pressure attenuation and short diaphragm service life, stabilizing hammer output under continuous high-frequency heavy-duty crushing operation.

Product Specifications

Item

Detailed Parameter

Product Name

BS560 BS585 Hydraulic Breaker Accumulator Diaphragm & Piston Cup Kit

Applicable Model

BS560, BS585 BRESTA Hydraulic Rock Breaker

Compatible Series

BRESTA BS Series Medium-Large Hydraulic Hammer

Main Material

Imported Reinforced NBR + FKM Fluororubber with Fabric Reinforcement Layer

Max Working Nitrogen Pressure

22.0MPa

Working Temperature

-30°C ~ 120°C

Kit Contents

Energy storage diaphragm, piston cup, sealing gaskets, positioning backing washers, full accumulator repair accessories

Cross Reference OEM No.

BRESTA-BS560, BRESTA-BS585, BR560088, BR585126

Net Weight

Approximately 1.1kg

Applicable System

Hydraulic breaker nitrogen accumulator energy storage system

Warranty

12 Months

Key Selling Points

  • 1. 100% OEM Exact Replacement. Fully dimensionally matched with original BRESTA BS560 & BS585 breakers, corresponds to OEM part numbers BRESTA-BS560, BRESTA-BS585, BR560088, BR585126. Direct mounting without cutting, grinding or modification.
  • 2. Reinforced Composite Sealing Material. Core diaphragm and piston cup adopt fabric-reinforced FKM composite rubber, featuring ultra-high tensile fatigue resistance. Resist hydraulic oil erosion, aging and cracking, stably operate within -30°C ~ 120°C extreme construction environment.
  • 3. Zero Nitrogen Leakage & Stable Impact Output. Every finished piece undergoes 22.0MPa high-pressure nitrogen tightness cycle testing. Effectively isolate hydraulic oil and nitrogen chamber, eliminate internal air leakage, maintain constant impact energy and avoid hammer weak hitting.
  • 4. All-in-One Complete Overhaul Kit. Contains all sealing and wearing parts required for full accumulator disassembly and maintenance. Integrated matching parts simplify on-site repair, cut equipment downtime and reduce overall operation maintenance cost.
  • 5. Strict Multi-Stage Factory Inspection. Each batch passes fatigue cycle test, high-pressure air tightness test and thermal aging test before delivery, fully compliant with BRESTA original equipment quality standards, guaranteeing long-term stable service under heavy load.
  • 6. Wide Application Scope. Suitable for BRESTA BS560 / BS585 hydraulic breakers equipped on various engineering machinery:
  • 18–30 ton medium & large excavators
  • Mining rock crushing & secondary stone breaking
  • Road demolition, concrete pavement breaking, foundation excavation
  • Old building dismantling, reinforced concrete crushing
  • Municipal engineering, tunnel & mountain excavation
  • Heavy-duty mobile hydraulic hammer construction equipment

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