3GEN Export

3115182201 , 3115 1822 01 DIAPHRAGM ATLAS COPCO

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Product Description

3115182201 DIAPHRAGM ATLAS COPCO

The 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO is a premium-grade hydraulic component engineered to deliver reliability, precision, and durability in heavy-duty pneumatic and hydraulic systems. Developed according to strict OEM-level standards, this diaphragm ensures consistent pressure regulation and flawless air separation within Atlas Copco drilling and compressor assemblies. Distributed globally by 3GEN Export, it combines material resilience, superior elasticity, and high-temperature resistance for exceptional long-term operation in demanding industrial environments.


Overview

The 3115182201 DIAPHRAGM ATLAS COPCO functions as a critical flexible barrier within the pneumatic and hydraulic control systems of rock drills, compressors, and drifters. It maintains pressure stability between chambers, isolating hydraulic fluids from compressed air zones while allowing controlled motion transfer.

Made from advanced synthetic elastomers and reinforced with multi-layer composite fiber, this diaphragm is designed to withstand high-frequency pulsations, pressure fluctuations, and thermal stress. It ensures accurate pressure modulation, preventing hydraulic oil leakage and air contamination, which are essential for efficient drilling and compressor performance.

Every 3115182201 diaphragm undergoes precision molding, dimensional inspection, and surface treatment to meet Atlas Copco’s exact tolerance standards. Its lightweight and robust structure provide a balance of flexibility and rigidity — enabling optimal movement under varying load conditions.


Technical Specifications

Parameter Specification
Part Number 3115182201 / 3115 1822 01
Description Diaphragm Assembly for Atlas Copco
Material Composition Nitrile Butadiene Rubber (NBR) + Reinforced Synthetic Fabric
Weight 0.32 kg
Operating Pressure Range 0 – 400 bar
Temperature Range –40 °C to +120 °C
Flex Life Cycle 1,000,000+ pressure cycles
Surface Finish Anti-friction polymer coating
Color Black matte
Compatibility Atlas Copco hydraulic and pneumatic drilling units
Mount Type Central stem with molded seal ring

The material is formulated to resist swelling from hydraulic fluids, maintain elasticity under high load, and sustain sealing strength after thousands of flexing cycles.


Function and Working Principle

The 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO operates as a dynamic sealing membrane. Its primary function is to divide two chambers — typically oil and air — while allowing motion transfer through pressure differential. When the hydraulic fluid pressure rises, the diaphragm flexes upward, transferring movement and maintaining equilibrium between the hydraulic and pneumatic sides.

This regulated movement ensures that energy from the compressor or hydraulic pump is effectively transmitted to the drilling mechanism without loss, vibration, or cavitation. In addition, it absorbs pulsations, acting as a mechanical cushion that prolongs the life of connected components like valve seats, seals, and piston assemblies.


Construction and Design Excellence

The 3115182201 DIAPHRAGM features a dome-shaped construction with a reinforced central stem. The outer rim is precision-molded to ensure tight sealing against the housing flange. The symmetrical profile allows uniform pressure distribution across its surface, preventing deformation or cracking even after extensive use.

Key design elements include:

  • Central Reinforced Shaft: Provides direct mechanical stability during pressure shifts.

  • Molded Edge Seal: Guarantees leak-free operation under varying torque loads.

  • Elastic Polymer Structure: Ensures consistent flexibility through temperature fluctuations.

  • High-Tear-Strength Design: Withstands repetitive mechanical stress during drilling vibration cycles.

This design ensures compatibility with high-frequency drifter mechanisms found in Atlas Copco ROC, Boomer, and Simba series drilling systems.


Compatible Atlas Copco Models

The 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO is compatible with multiple drilling and compressor units across the Atlas Copco lineup. Below are the most commonly supported systems:

  • ROC L8 and ROC D7 Series Surface Drills

  • FlexiROC T35, T40, and T45 Models

  • SmartROC T45 and T55 Drill Rigs

  • Boomer 281, 282, and Boomer E2C Underground Drills

  • Simba S7, Simba M4C, and Simba E7 Production Drills

  • Hydraulic Compressor and Drifter Assemblies

  • Hydraulic Power Packs using HLX5 or RD520 Drifters

(Compatibility should be verified based on the individual rig’s configuration and system version.)


Application Areas

The 3115182201 diaphragm plays a crucial role in multiple Atlas Copco systems, including:

  • Hydraulic control blocks for drifters and rock drills

  • Pneumatic compressor pressure regulators

  • Accumulator assemblies for vibration dampening

  • Flow control circuits in rotary drilling heads

  • Energy recovery and damping chambers in air-hydraulic modules

By maintaining separation and dynamic pressure equilibrium, this diaphragm ensures that equipment retains full power output and prevents premature failure of valves and seals.


Performance and Durability

Precision engineering is the defining trait of the 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO. Each diaphragm is produced using high-pressure molding and post-curing to eliminate micro-imperfections. The reinforced fiber network prevents elongation and guarantees repeatable movement patterns under heavy mechanical loads.

  • Temperature Resistance: Works effectively from –40 °C to +120 °C without losing elasticity.

  • Fluid Compatibility: Resists hydraulic oils, synthetic lubricants, and mineral fluids.

  • Pressure Stability: Maintains form under continuous operation up to 400 bar.

  • Aging Resistance: UV- and ozone-resistant outer layer prevents hardening or cracking.

  • Elastic Memory: Restores its shape instantly after compression, preserving performance.

These properties make it ideal for both surface and underground drilling conditions — from dusty quarries to humid mine shafts.


Installation and Maintenance

The 3115182201 diaphragm is designed for easy installation with standard Atlas Copco assemblies. The central stem aligns with housing guides to ensure precise placement. Always inspect seating surfaces for debris before installation to prevent seal damage.

Routine inspection is recommended every 500 operating hours, focusing on:

  • Surface elasticity and cracks

  • Edge sealing integrity

  • Shaft alignment and flexibility

Replacement intervals typically occur every 2000–3000 hours depending on operating conditions. Using OEM-standard diaphragms like this model prevents costly system downtime and maintains drilling precision.


Why Choose 3GEN Export as Your OEM Supplier

3GEN Export is a leading international supplier of OEM-standard spare parts for heavy machinery, including Atlas Copco, Sandvik, Komatsu, Volvo, and Caterpillar. The 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO is distributed exclusively by 3GEN Export with full OEM compatibility assurance and fast global logistics.

We provide:

  • Worldwide delivery in 5 working days

  • OEM quality at competitive rates

  • Comprehensive compatibility verification

  • One-year manufacturer warranty

  • Expert technical assistance

Our products are engineered to match the mechanical precision of original components, ensuring performance reliability and long lifecycle value.


Packaging and Logistics

Every 3115182201 DIAPHRAGM ATLAS COPCO is individually packed in sealed anti-static bags with moisture protection. Each item is barcoded for traceability, and bulk orders are vacuum-packed in reinforced export cartons to prevent deformation during shipment.

We work with global courier services such as DHL, FedEx, and UPS to ensure your parts reach your site within 5 working days. Packaging includes full product identification labels for immediate warehouse integration.


Advantages of Using the 3115182201 DIAPHRAGM

  • Extended service life under cyclic pressure conditions

  • Enhanced sealing performance for both hydraulic and pneumatic sides

  • Resistance to oil, temperature, and vibration

  • Maintains dimensional accuracy and elasticity after long-term use

  • Compatible with a wide range of Atlas Copco drilling and compressor systems

  • Lightweight and easy to install

  • Immediate availability via 3GEN Export’s global supply chain


Quality Control and Testing

Each diaphragm undergoes a multi-step verification process:

  1. Visual Inspection: Checks for surface imperfections or air bubbles.

  2. Dimensional Analysis: Confirms OEM geometric tolerances.

  3. Pressure Flex Testing: Simulates repeated hydraulic cycles at up to 400 bar.

  4. Temperature Endurance Testing: Exposes material to –40 °C and +120 °C for flexibility retention.

  5. Fluid Compatibility Verification: Confirms no degradation from hydraulic oils and synthetic lubricants.

These tests guarantee the 3115182201 diaphragm performs identically to the original Atlas Copco part in field conditions.


The Role of the Diaphragm in Hydraulic Systems

In rock drill systems, the diaphragm acts as the mechanical heart of the pressure chamber. It regulates the energy exchange between hydraulic fluid and compressed air, allowing controlled hammering action without fluid contamination.

If a diaphragm fails, the system loses its energy equilibrium, leading to power drop, oil foaming, and seal damage. That’s why using an OEM-level component like 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO is essential for machine longevity and operational efficiency.


Technical Summary

Feature Details
Product Name 3115182201 / 3115 1822 01 DIAPHRAGM ATLAS COPCO
Function Flexible sealing membrane for pressure regulation
Weight 0.32 kg
Material Reinforced nitrile rubber compound
Compatibility ROC, FlexiROC, Boomer, Simba, and HLX drifters
OEM Standard 3GEN Export-certified
Operating Range –40 °C to +120 °C, up to 400 bar
Delivery Time 5 working days worldwide

Global Reach and Trusted Supply

3GEN Export serves customers across more than 60 countries. Our mission is to ensure that industrial operators can access reliable, OEM-quality parts like the 3115182201 DIAPHRAGM ATLAS COPCO quickly and efficiently, minimizing equipment downtime and maximizing productivity.

Every product we deliver is backed by traceable manufacturing documentation, technical support, and post-sale service for customer satisfaction.


Conclusion

The 3115182201 (3115 1822 01) DIAPHRAGM ATLAS COPCO represents the pinnacle of engineering reliability and material innovation. Designed to handle the toughest operational conditions, it safeguards your hydraulic and pneumatic systems from failure while maintaining seamless pressure balance and energy transfer.

By choosing 3GEN Export as your OEM supplier, you secure an authentic, precision-engineered part with guaranteed global delivery in 5 working days. This diaphragm not only supports your machinery but also reinforces your operation’s commitment to efficiency, performance, and sustainability.

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.  
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