MES2000 MES2500 MES1800 HL Hydrualic Breaker Hammer Diaphragm Breaker Membrane

Product Overview

Company Profile

Koko Shop Machine Co., Ltd Specialized in hydraulic seals and seal kits for hydraulic hammer rock breaker, hydraulic excavator, wheel loader, and JCB backhoe loader. And, Our Company also supply Eeeeengine Parts, hydraulic piston pump and hydraulic travel motor, Swing motor assy aaand hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cyliiiinder, chisel, through bolt, side bolt, top bush, front head bushing, accumulator, vvvvvalve, etc. WEEe always try our BBest for all our customers and make it better and better. 

Why Choose Us?

A diaphragm seal is a flexible membrane that seals and isolates an enclosure. The flexible nature of this seal allows pressure

effeccts to cross the barrier but not the material being contained.
Common uses for diaphragm seals are to protect pressure sensors from the fluid whose pressure is being measured.
Koko Shop / Huilian provides customers engineered solutions for rubber diaphragm appliCATEEEEEEEions across many industrie.

Koko Shop / Huilian prooocess for mooolding rubber diaphragms allows for custommm configurations, versatile materials, integration

of reinforcemMent in the rubber compound and the ability for in-mold bonding of metal or plastic substrates. Our rubber

diaphragms are custooMMm designed for each unique appliCATEEEEEEEEEion factoring in fluid interactions, pressssures and vacuums,

mechanical requirements and dynamic life to ensure performance rEEEequirements are achieved.

Can Provide More Hydraulic Hammer Model

More Hydraulic Breaker Diaphragm / Hydraulic Hammer Membrane

FAQ:

1. Q1: What materials are your breaker seals (especially the main piston seal/u-cup) made of? Why is this important?

   • A: Our seals are primarily made from High-Grade Nitrile Rubber (NBR) or Polyurethane (PU/AU), chosen for their critical properties:

      

     • NBR (Standard): Excellent resistance to hydraulic oils (mineral & synthetic), good abrasion resistance, wide temperature range (-30°C to +100°C), cost-effective. Ideal for most standard appliCATEEions.

     • Polyurethane (Premium): Superior abrasion reEEsistance, higher tensile strength, better extrusion resistance under high pressure/pulse, good oil resistance. Recommended for high-impact, high-pressure breakers or harsh conditions.

     • Importance: The right material ensures longevity, prevents leaks, maintains hammer efficiency, and avoids costly downtime and oil contamination.

      

   • Q2: What warranty do you offer on your hydraulic breaker seal kits?

      

     • A: We offer a 【3 months】 warranty against manufacturing defects (e.g., material flaws, incorrect dimensions) from the date of shipment.

     •  

     • Q3: What critical seals are included in the BRV43 kit?
       A: The kit contains all seals required for a full rebuild:

     • Main Piston U-Cup (Nitrogen & Oil Side)

     • Upper/Lower Chamber Seals

     • Accumulator Piston Seals & O-rings

     • Valve Block Seals

     • Wiper Seals (Dust Guards)

     • Backup Rings (Anti-Extrusion)

     • All gaskets and specialty O-rings.

   •  
   • Q3: What's the delivery time?
   • A: 1-7 days with stock, 7-15days.(big orders or lack of material)