3115027700, 3115 0277 00 COUPLING ATLAS COPCO

(Precision-Engineered Connection Component for Hydraulic Drifters – OEM Quality by 3GEN Export)

Overview

The 3115027700 , 3115 0277 00 COUPLING ATLAS COPCO is a high-performance connection component that plays a crucial role in the operation of hydraulic drifters. Designed to link the rotating drive shaft to the chuck adapter or shank, this coupling ensures consistent torque transmission and vibration stability throughout drilling operations.

Developed under 3GEN Export’s OEM-grade engineering standards, this coupling is manufactured using hardened alloy steel with precision-machined internal splines, ensuring a secure fit and exceptional durability even under extreme loads. It’s the ideal solution for professionals seeking high-efficiency power transfer in Atlas Copco COP-series hydraulic rock drills.

Engineered for strength, longevity, and performance, the 3115027700 COUPLING ATLAS COPCO minimizes rotational backlash, improves drilling precision, and reduces wear across connected components — ensuring reliable operation in demanding mining and construction environments.

Functional Importance

In hydraulic drifter systems, the coupling serves as a mechanical intermediary between the rotary drive motor and the shank adapter assembly. Its primary role is to transmit rotational energy with minimal loss, allowing the drill bit to maintain consistent torque and speed across varying loads.

The 3115 0277 00 COUPLING ATLAS COPCO is built to withstand:

• Constant rotational stress

• Axial vibration from impact cycles

• Frictional wear between mating splines

• Misalignment from long-term machine operation

By providing a stable link between critical powertrain elements, this coupling prevents performance degradation, reduces mechanical noise, and maintains the drifter’s precision alignment.

The result is smoother drilling performance, increased efficiency, and extended lifespan of both the drifter and its internal assemblies.

Technical Specifications

Design and Construction

The 3115027700 , 3115 0277 00 COUPLING ATLAS COPCO is built with precision engineering to handle both rotational and axial loads simultaneously. The internal spline design ensures that torque is evenly distributed along the entire contact surface, minimizing wear and eliminating the risk of spline stripping during heavy-duty applications.

Key Design Features:

• Precision Internal Spline Geometry: Provides accurate interlocking between shafts, allowing smooth torque transfer and eliminating power loss.

• Hardened Outer Shell: Resists deformation and surface fatigue under continuous load.

• Black Oxide Coating: Protects against corrosion and improves surface lubrication during assembly.

• Tight Tolerance Machining: Guarantees perfect concentricity and uniform torque distribution.

The coupling’s internal splines are machined using high-precision CNC tools and subsequently heat-treated to achieve optimal surface hardness. This ensures maximum wear resistance without compromising the material’s inherent toughness.

Role in the Drifter Assembly

Within Atlas Copco’s hydraulic drifters, the 3115 0277 00 COUPLING connects two major assemblies:

• The rotation motor output shaft

• The front drilling mechanism (chuck and shank adapter)

This connection transmits rotational power from the motor to the drill bit, synchronized with the percussion system. Its design allows for high-torque transmission even under the immense mechanical stress generated during rock drilling operations.

Key Operational Advantages:

• Maintains torque consistency throughout the drilling process

• Reduces vibration and operational noise

• Improves drilling precision and energy efficiency

• Prevents mechanical slippage or spline wear

Its superior dimensional accuracy ensures perfect alignment between components, minimizing eccentric loading and extending overall drifter lifespan.

Performance Benefits

1. High Torque Transmission

The coupling is designed to handle continuous torque loads exceeding 180 Nm without distortion or spline deformation. This ensures efficient power transfer even during high-resistance drilling operations.

2. Exceptional Wear Resistance

With hardened spline surfaces (60 HRC) and a robust alloy composition, the coupling withstands constant frictional stress, dramatically extending replacement intervals.

3. Reduced Downtime

Quick-fit design enables easy installation and removal during maintenance, reducing assembly time and operational interruptions.

4. Enhanced Equipment Longevity

By maintaining proper shaft alignment and torque stability, it prevents excessive wear on adjoining components such as bushings, bearings, and shanks.

5. Vibration Control

Optimized balance and surface finish help dampen rotational vibration, ensuring smoother drilling cycles and better operator control.

Compatible Atlas Copco Models

The 3115027700 , 3115 0277 00 COUPLING ATLAS COPCO is compatible with a wide range of Atlas Copco hydraulic drifters, including some of the most widely used models in mining and tunneling equipment.

Compatible Models:

• COP 1238

• COP 1638

• COP 1838

• COP 1840

• COP 1850

• COP 2238

• COP 2240

These models are commonly found in Boomer, ROC, and FlexiROC series drilling rigs, used globally in mining, tunneling, and infrastructure development.

Material Engineering and Surface Protection

The coupling is manufactured from chromium-molybdenum (Cr-Mo) alloy steel, chosen for its superior mechanical strength, impact resistance, and thermal stability.

Engineering Properties:

• High fatigue resistance for repetitive load cycles

• Excellent surface hardness for spline retention

• Stable dimensional performance under temperature fluctuation

• Non-corrosive surface finish with black oxide coating

This combination ensures that the 3115 0277 00 COUPLING ATLAS COPCO retains its mechanical precision even in the harshest drilling conditions.

Manufacturing Standards and Quality Control

Each 3115027700 COUPLING undergoes a rigorous manufacturing process, ensuring that every unit leaving 3GEN Export’s production facility meets international OEM quality benchmarks.

Production Steps:

1. CNC Forging and Machining – Ensures dimensional uniformity and precise spline geometry.

2. Heat Treatment and Tempering – Achieves optimal hardness for surface durability.

3. Grinding and Lapping – Provides smooth finish and ensures accurate concentricity.

4. Black Oxide Treatment – Enhances corrosion resistance.

5. Dimensional Inspection – Verified through 3D coordinate measurement systems (CMM).

Quality assurance includes hardness tests, torque tests, and non-destructive evaluations (NDT) to confirm material integrity and surface structure consistency.

Installation and Maintenance

Installation Guide:

1. Clean the spline bores and shaft ends to remove any debris or contaminants.

2. Lightly lubricate the internal splines with assembly grease.

3. Align the splines precisely before insertion to prevent cross-threading or damage.

4. Secure the coupling using factory-recommended torque settings.

Maintenance Recommendations:

• Inspect the coupling every 1000 operational hours for wear or cracks.

• Replace immediately if any spline deformation is detected.

• Store in a dry environment to prevent moisture-related oxidation.

• Use only OEM-equivalent replacements from 3GEN Export for guaranteed performance.

Proper care ensures long-term durability and prevents misalignment that could affect drilling performance.

Applications

The 3115027700 , 3115 0277 00 COUPLING ATLAS COPCO is used across multiple industries that depend on high-torque rock drilling machinery, including:

• Mining and Quarrying: For efficient rock penetration and continuous drilling.

• Tunneling: For underground infrastructure and metro development.

• Construction: For foundation drilling and slope stabilization projects.

• Hydraulic Equipment Maintenance: As a vital spare during machine overhauls.

Its adaptability across heavy-duty applications demonstrates its superior build quality and compatibility with industrial drilling systems worldwide.

Why Choose 3GEN Export

3GEN Export stands as a global leader in the supply of OEM-grade spare parts for heavy machinery and drilling systems. With a network that spans over 120 countries, we specialize in high-precision parts that match or exceed original equipment performance standards.

Key Advantages:

• OEM-Level Precision Engineering – All couplings are tested for torque, fitment, and performance consistency.

• Fast Worldwide Delivery – Shipping to all destinations within 5 working days.

• Comprehensive Product Range – Coverage across Atlas Copco, Sandvik, and other major equipment brands.

• 1-Year Warranty – Ensuring confidence and reliability in every purchase.

• Expert After-Sales Support – Technical assistance for compatibility and installation queries.

Each product embodies 3GEN Export’s mission: to deliver industrial excellence and reliability to every client, anywhere in the world.

Environmental Commitment

3GEN Export is committed to sustainable production practices. Each 3115 0277 00 COUPLING is produced under eco-compliant standards, minimizing waste and energy consumption. Packaging materials are recyclable, and shipping processes are optimized for reduced carbon emissions.

By choosing 3GEN Export, you’re not only securing quality—you’re supporting a greener, more efficient manufacturing ecosystem.

Conclusion

The 3115027700 , 3115 0277 00 COUPLING ATLAS COPCO is a cornerstone of precision and endurance in hydraulic drifter performance. Built from high-strength alloy steel and manufactured to OEM specifications, this coupling ensures flawless torque transmission, minimal vibration, and extended service life.

Whether you’re operating in deep mining shafts or large-scale tunneling sites, this component ensures uninterrupted performance and mechanical stability.

With 3GEN Export’s certified OEM quality, global logistics capability, and five-day worldwide delivery promise, your operations can maintain peak productivity with absolute confidence.

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.