86634003, 8663 4003 DIAPHRAGM MONTABERT ATLAS COPCO

Engineered for Precision and Durability in Hydraulic Rock Breakers

The 86634003 DIAPHRAGM MONTABERT ATLAS COPCO (also referred to as 8663 4003 DIAPHRAGM MONTABERT ATLAS COPCO) is a critical hydraulic component designed to ensure consistent pressure control and energy storage in rock drill and breaker systems. Manufactured from high-elasticity nitrile and synthetic rubber compounds, it is built to handle the intense hydraulic cycles of Montabert and Atlas Copco systems without deformation or fatigue.

Offered exclusively by 3GEN Export as an OEM-quality component, this diaphragm guarantees superior sealing performance, pressure stability, and vibration absorption for your hydraulic equipment.

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Product Overview

Role in Hydraulic Systems

The 86634003 DIAPHRAGM MONTABERT ATLAS COPCO serves as a pressure accumulator membrane that separates hydraulic fluid from compressed nitrogen gas within the accumulator chamber. During drilling operations, it absorbs hydraulic pulsations, maintains pressure equilibrium, and ensures the smooth operation of impact mechanisms.

By stabilizing hydraulic flow and cushioning mechanical shocks, the diaphragm prevents premature wear of system components, resulting in extended service life and reduced maintenance downtime.

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Technical Specifications

Each diaphragm is precision-molded, ensuring uniform wall thickness and flawless sealing performance across all pressure cycles.

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Material Technology

Reinforced Rubber Architecture

This diaphragm utilizes a dual-layer nitrile rubber structure combined with a fiber-reinforced polymer matrix to resist cracking under repetitive stress. The material maintains its flexibility even in extreme temperature ranges, making it ideal for continuous heavy-duty use.

Oil and Pressure Resistance

The 86634003 DIAPHRAGM MONTABERT ATLAS COPCO exhibits superior chemical resistance to hydraulic oils, nitrogen gases, and lubricants used in modern drilling systems. Its high-pressure sealing performance ensures stable nitrogen retention and prevents fluid leakage even after thousands of cycles.

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Compatibility with Atlas Copco and Montabert Models

The diaphragm is designed for a wide range of hydraulic equipment and breaker systems. Compatible Atlas Copco and Montabert models include:

• Montabert BRH Series (BRH 90, BRH 125, BRH 250)

• Montabert V Series (V2500, V3500, V4500)

• Atlas Copco SB Series (SB 302, SB 450, SB 552)

• Atlas Copco MB Series (MB 750, MB 1000, MB 1200)

• Atlas Copco HB Series (HB 2000, HB 2500, HB 3100)

• Atlas Copco EC Series (EC 80, EC 135, EC 150)

This cross-compatibility ensures maximum efficiency and interchangeability between Montabert and Atlas Copco machinery used in mining, construction, and quarry operations.

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Functional Advantages

Shock Absorption and Pressure Stability

The diaphragm’s elastic structure efficiently absorbs hydraulic shocks, ensuring smooth transitions during each impact cycle. This not only protects the accumulator but also minimizes vibration transfer to other machine components.

Extended System Longevity

By maintaining constant pressure inside the hydraulic accumulator, the diaphragm prevents sudden drops that could harm the hammer piston and seals. This leads to fewer mechanical failures and longer maintenance intervals.

Energy Efficiency

Stable hydraulic pressure results in more efficient power transfer, reducing unnecessary energy loss during rock impact. Operators benefit from improved fuel efficiency and increased drilling speed.

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Application Areas

The 86634003 DIAPHRAGM MONTABERT ATLAS COPCO is essential in equipment exposed to continuous vibration, hydraulic load variation, and high-frequency impact cycles.

Used In:

• Hydraulic rock breakers

• Drilling rigs and hammer systems

• Mining and quarry excavation machinery

• Foundation drilling and tunneling equipment

• Construction demolition systems

Whether used in underground mining or surface rock fragmentation, this diaphragm ensures reliability and consistent performance under pressure.

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Installation and Maintenance

Installation Guidelines

1. Inspect the accumulator housing: Ensure the inner walls are free from dirt and scoring.

2. Lubricate the diaphragm: Apply a thin layer of compatible hydraulic oil before fitting.

3. Correct Positioning: Place the diaphragm symmetrically within the accumulator dome.

4. Pre-Charge Nitrogen: Fill the accumulator to the specified pre-charge level using a calibrated gas valve.

5. Test the System: Monitor for leaks and pressure loss after reassembly.

Maintenance Recommendations

• Replace every 12–18 months or as part of scheduled overhaul maintenance.

• Avoid overcharging nitrogen pressure beyond specified limits.

• Store diaphragms in a dry, shaded environment at ambient temperature.

• Inspect regularly for surface cracking or elasticity loss.

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Quality Testing and Assurance

All 86634003 DIAPHRAGM MONTABERT ATLAS COPCO units supplied by 3GEN Export undergo rigorous quality control processes:

• Pressure Fatigue Test: Simulates 1 million compression cycles at full load.

• Material Elasticity Test: Ensures rubber maintains 95% flexibility after thermal aging.

• Oil Resistance Evaluation: Validated using mineral and synthetic hydraulic fluids.

• Nitrogen Retention Test: Confirms long-term pressure stability under continuous cycles.

Only diaphragms meeting OEM-equivalent performance metrics are approved for export.

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Advantages of 3GEN Export OEM Supply

Global OEM Expertise

3GEN Export specializes in heavy machinery spare parts for hydraulic drilling, construction, and mining sectors. With extensive expertise in OEM-equivalent manufacturing, we ensure each component matches the dimensional accuracy and material integrity required by global brands.

Why Choose 3GEN Export

• 100% OEM-quality compatibility

• Certified production and quality control

• Worldwide delivery within 5 working days

• One-year warranty on all products

• Customer-oriented support and technical guidance

Your 86634003 DIAPHRAGM MONTABERT ATLAS COPCO is packaged, inspected, and shipped with complete documentation and traceability for fast and secure international delivery.

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Packaging & Logistics

• Weight: 0.34 KG

• Packaging: Anti-static sealed bag inside a shockproof box

• Labeling: Includes part number, manufacturing batch, and inspection date

• Delivery: Global express shipping , delivered within 5 business days by 3GEN Export

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Summary of Key Features

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Conclusion

The 86634003 DIAPHRAGM MONTABERT ATLAS COPCO is a core component in maintaining optimal hydraulic balance within rock drill and breaker systems. Its resilient structure, precision molding, and long-lasting elasticity make it an indispensable element in ensuring continuous, shock-free operation.

By sourcing from 3GEN Export, you guarantee that your machinery operates at maximum efficiency, backed by OEM-grade engineering and international delivery assurance.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.