Home / For Epirco drifter / 3115531400 EPIROC COUPLING 3115 5314 00 DRIVER ATLAS COPCO DRIFTER COP1638HD
Product

3115531400 EPIROC COUPLING 3115 5314 00 DRIVER ATLAS COPCO DRIFTER COP1638HD

One driver. No energy games. Straight drop-in for your COP1638HD+.

The 3115531400 driver takes impact force from the piston and shoves it into the shank adapter with as little waste as possible. We make it from a sintered steel alloy, then induction-harden the contact surfaces to sit between 58 and 62 HRC. That keeps the geometry from rounding off under full load, so you are not swapping it out every few hundred meters drilled.

It fits COP 1638HD+, the 1838 series, and a handful of other Atlas Copco/Epiroc drifters without shimming, grinding, or second-guessing. If your bore is losing pace and the coupling shows galling or mushrooming, this one slides in and runs like the original—because it is built to the original print.

Get a Quote Back to For Epirco drifter
3115531400 EPIROC COUPLING 3115 5314 00 DRIVER ATLAS COPCO DRIFTER COP1638HD
#311
Highlights
Key Advantages
  • Drops into COP1638HD+ and 1838-series drifters—no filing, no shims, same bolt pattern.
  • Sintered steel body with induction-hardened bearing faces: 58–62 HRC, so it does not mushroom after a few shifts.
  • Ground contact surfaces keep sliding friction low—less heat buildup, less wasted impact energy.
  • Surface coating holds off rust in wet headings and high-humidity underground drifts.
  • Every batch checked against OEM geometry—no guesswork, no call-backs for early wear.
Use Cases
Applications
  • Underground production drilling and development rounds
  • Tunnel face drilling in civil works
  • Open-pit bench drilling with COP-equipped crawlers
  • Hydraulic long-hole drifter setups
Specs
Technical Specifications
Part Number3115531400 / 3115 5314 00
ComponentDriver (coupling)
Brand CompatibilityEpiroc / Atlas Copco
MaterialHigh-strength sintered steel alloy
Heat TreatInduction hardened on working faces
Surface Hardness58–62 HRC
Surface FinishPrecision ground, then polished
Approx. Dimensions (L × OD × ID)70 mm × 60 mm × 40 mm
Weight~1.45 kg
Working Temperature Range-40 °C to +200 °C
Corrosion ProtectionCoated finish, good in wet conditions
Details
Detailed Description
Brand :Epiroc
Part No. :3115531400
Description :Driver
Use in :Cop 1638hd+ , Cop 1838+ , Cop 1838hd+ , Cop 1838he+ , Cop 1838mux+ , Cop 2238hd+


3115531400 DRIVER ATLAS COPCO
The 3115531400 Driver Atlas Copco is a precision-engineered component developed for optimal torque transmission, mechanical stability, and long-term durability in Atlas Copco’s hydraulic and pneumatic drilling systems. As a key element within the impact mechanism of rock drills, this driver ensures precise energy transfer from the piston to the striking element, minimizing energy loss while maximizing drilling power and consistency.

Manufactured to exact OEM dimensions, the 3115 5314 00 Driver Atlas Copco provides seamless compatibility with Atlas Copco drifters and rock drills. It is an essential spare part for maintaining the operational integrity of drilling machinery in mining, tunneling, and construction industries.

Function and Application of the 3115531400 Driver Atlas Copco

Central Role in Energy Transfer

The 3115531400 Driver Atlas Copco serves as a coupling component between the piston and the drill shank adapter. It is designed to transfer impact energy efficiently through direct contact surfaces, ensuring minimal loss of kinetic force during drilling. This ensures consistent penetration rates and reduces wear across the entire impact system.

In high-performance rock drills, even minor imperfections in the driver’s geometry can lead to misalignment and energy inefficiency. Therefore, this driver’s precision design and hardened surface make it critical for smooth, powerful, and accurate drilling operations.

Application Across Heavy Machinery

The 3115 5314 00 Driver Atlas Copco is widely used in various Atlas Copco drilling machines and rigs that operate in demanding conditions such as:

  • Underground mining and tunneling

  • Quarrying and construction foundation drilling

  • Open-pit operations

  • Hydraulic and pneumatic drifter systems

It performs as a stabilizing and driving interface, maintaining rotational precision and delivering continuous torque without mechanical slippage or vibration.

Technical Specifications

SpecificationDetails
Part Number3115531400 / 3115 5314 00
Component NameDriver
Compatible BrandAtlas Copco
MaterialHigh-strength sintered steel alloy
Heat TreatmentInduction-hardened for wear resistance
Surface FinishPolished and precision-ground for low friction
Dimensions (Approx.)Length: 70 mm / Outer Diameter: 60 mm / Inner Diameter: 40 mm
WeightApprox. 1.45 KG
Operating Temperature Range-40°C to +200°C
Surface Hardness58–62 HRC
Corrosion ResistanceExcellent (surface-coated finish)
FAQ
FAQ
Which drifters does this 3115531400 driver actually fit?
It goes straight into COP 1638HD+, COP 1838+, COP 1838HD+, COP 1838HE+, COP 1838MUX+, and COP 2238HD+. Same casting, same bolt circle.
Is this a genuine Epiroc part or an aftermarket copy?
It is made to the original Epiroc/Atlas Copco print. Same dimensions, same heat treat, same QC checkpoints. If your supply chain demands OEM-spec parts, this one ticks the box.
What is the actual hardness and why does it matter?
Contact faces land at 58–62 HRC. If it is softer, the driver mushrooms and sticks in the chuck. If it is too hard, it gets brittle and can crack under high blow frequency. This range has held up best in the field.
How do I spot when the driver is worn enough to swap?
Pull it and look. Mushroomed edges, spalling on the contact ring, or a loss of more than 0.5 mm off the face thickness means it is time. If your bore rate drops and everything else checks out, the driver is usually the culprit.
What is a realistic lead time?
Depends on your region and our shelf stock at the time. Most orders ship within a few days when inventory is on hand. Shoot us your location and we will give you an actual transit estimate.
Stock
Check Stock & Get a Quote
Send us your shipping destination and quantity. We will get back with stock status and a landed cost, usually same day.
Send Inquiry