Product Specification

Indeco MES Series Hydraulic Breaker Diaphragm Nitrogen Membrane Replacement 

Reliable Gas Pressure Control for Hydraulic Breaker Performance

Product Introduction

The Indeco MES Series Hydraulic Breaker Diaphragm is a high-quality replacement membrane designed for Indeco MES Series hydraulic breakers. Installed inside the hydraulic breaker accumulator or gas chamber, the diaphragm separates hydraulic oil from nitrogen gas while maintaining stable pressure throughout the operating cycle. It is one of the most important sealing components affecting breaker efficiency, striking force, and operational reliability.

Modern hydraulic breakers rely on hydraulic pressure together with compressed nitrogen to generate powerful impact energy. During continuous rock breaking, concrete demolition, quarry production, trench excavation, and road maintenance, the diaphragm is repeatedly compressed and expanded thousands of times every working day. Because it operates under high pressure, rapid deformation, temperature fluctuations, and continuous vibration, it is considered a normal wear component that requires periodic inspection and replacement.

When a diaphragm begins to age, crack, harden, or lose elasticity, nitrogen pressure can no longer remain stable. This often results in reduced impact energy, unstable striking frequency, excessive hydraulic oil contamination, poor energy transfer, and higher maintenance costs.

Our aftermarket Indeco MES Series Diaphragm is manufactured according to OEM dimensions, providing reliable compatibility and easy installation for hydraulic breaker repair and preventive maintenance. The names Indeco and MES Series are used solely for product compatibility identification.

Premium Materials

Material quality directly determines diaphragm durability.

Our diaphragms are produced using premium elastomer compounds developed for high-pressure hydraulic applications.

Available materials include:

• NBR (Nitrile Rubber) – excellent resistance to hydraulic oil, wear and compression.
• FKM (Fluoroelastomer) – outstanding resistance to high temperature, oxidation and chemical aging.
• Customized rubber compounds for special working environments.

Each diaphragm is manufactured using precision molding technology followed by strict inspection of dimensional accuracy, elasticity, hardness and sealing performance before shipment.

Product Features

Stable Nitrogen Pressure

Maintains consistent nitrogen pressure inside the accumulator to ensure stable impact performance.

Excellent Elastic Recovery

High-quality rubber quickly returns to its original shape after repeated compression cycles.

Superior Oil Resistance

Designed to withstand continuous exposure to hydraulic oil without swelling or deterioration.

High Temperature Durability

Suitable for demanding construction and mining environments where hydraulic systems generate elevated temperatures.

Long Fatigue Life

Engineered to resist millions of compression cycles while maintaining sealing efficiency.

Easy Installation

Manufactured according to OEM specifications for direct replacement without modification.

Why Is the Diaphragm Important?

Many users only pay attention to pistons or seal kits, while the diaphragm is often overlooked.

However, the diaphragm directly affects nitrogen pressure stability, which is essential for hydraulic breaker efficiency.

A damaged diaphragm may cause:

• Nitrogen leakage
• Reduced striking force
• Slow impact frequency
• Unstable operation
• Increased hydraulic oil contamination
• Lower energy efficiency
• Additional stress on internal components
• Higher maintenance costs

Replacing the diaphragm during scheduled maintenance helps maintain optimal accumulator performance and reduces the risk of unexpected machine downtime.

Why Choose Our Diaphragms?

We specialize in manufacturing aftermarket hydraulic breaker spare parts for distributors, repair workshops, equipment dealers and OEM customers worldwide.

Our advantages include:

• Professional hydraulic breaker component manufacturing
• Strict raw material selection
• Stable rubber formulation
• Precision molding technology
• Complete quality inspection
• OEM & ODM production
• Fast delivery
• Export-standard packaging
• Competitive pricing
• Technical support

Besides diaphragms, we also manufacture:

• Breaker Chisels
• Pistons
• Cylinders
• Front Heads
• Back Heads
• Seal Kits
• Through Bolts
• Side Bolts
• Rod Pins
• Tool Retainers
• Buffers
• Wear Plates
• Inner Bushings
• Outer Bushings
• Thrust Rings

Applications

Suitable for:

• Hydraulic breaker overhaul
• Preventive maintenance
• Mining equipment
• Quarry machinery
• Concrete demolition
• Road construction
• Municipal engineering
• Tunnel excavation
• Foundation projects
• Equipment rental maintenance

Technical Specifications

FAQ

Q1. Is this an original Indeco diaphragm?

No. This is a premium aftermarket diaphragm manufactured for compatibility with Indeco MES Series hydraulic breakers.

Q2. What does a hydraulic breaker diaphragm do?

It separates nitrogen gas from hydraulic oil, maintains accumulator pressure, and improves impact efficiency.

Q3. Which material is better, NBR or FKM?

NBR is suitable for standard operating conditions, while FKM provides better resistance to high temperature and long-term aging.

Q4. When should a diaphragm be replaced?

Replacement is recommended if nitrogen pressure cannot be maintained, the diaphragm becomes cracked, hardened, deformed, or during major hydraulic breaker overhaul.

Q5. Can customized diaphragms be produced?

Yes. We support customized materials, dimensions, hardness, packaging and private labeling.

Q6. Do you provide complete hydraulic breaker spare parts?

Yes. We offer one-stop solutions including diaphragms, seal kits, pistons, cylinders, chisels, bushings, bolts and other hydraulic breaker components.