Home / Rock Drill Accessories / Accessories For 1838HD+ Rock Drills, Part Number 3115 2129 00, Impact Piston.

Accessories For 1838HD+ Rock Drills, Part Number 3115 2129 00, Impact Piston.

Precision-Engineered Impact Piston for Maximum Uptime & Reliability

Part No. 3115 2129 00 is the critical impact piston for the Atlas Copco COP 1838HD+ hydraulic rock drill — a core component responsible for generating and transferring high-frequency impact energy to break rock efficiently.

Manufactured to strict OEM specifications using high-strength alloy steel, then precision-ground and heat-treated for superior impact resistance, fatigue strength, and dimensional stability. Fully interchangeable with original equipment — no modifications required.

Ideal for demanding underground mining, tunneling jumbos, and surface quarry operations where reliability, longevity, and consistent performance are non-negotiable.

Key Advantages

  • OEM-spec design: 100% dimensionally and functionally compatible with original Atlas Copco COP 1838HD+/HD/ME
  • Heat-treated alloy steel construction for exceptional impact resistance and fatigue life under high-frequency operation
  • Precision grinding ensures perfect balance, minimal vibration, and optimal energy transfer to shank adapter
  • Rigorous 100% pre-shipment inspection for surface integrity, hardness uniformity, and dimensional accuracy
  • Cost-effective alternative to OEM without compromising on performance, durability or safety compliance
  • Optimized for harsh environments: resistant to thermal cycling, pressure spikes, and abrasive contamination

Applications

  • Underground hard-rock mining drilling rigs
  • Tunnel boring jumbo machines (e.g., Boomer, Simba variants)
  • Quarry and open-pit surface drilling systems
  • Heavy-duty hydraulic rock drills in high-production blasting operations
  • Retrofit and maintenance programs for aging COP 1838 fleet
  • Emergency spares inventory for continuous drilling operations

Technical Specifications

Part Number3115 2129 00
Compatible ModelsCOP 1838HD+, COP 1838HD, COP 1838ME
MaterialHigh-strength low-alloy (HSLA) steel
Surface HardnessHRC 58–62 (case-hardened)
Tolerance ClassIT6 (ISO 286-1)
ConditionBrand new, vacuum-packed, anti-corrosion coated

FAQ

Is this piston certified to meet Atlas Copco OEM specifications?
Yes — manufactured under ISO 9001-certified processes with full traceability; material certs, hardness reports, and dimensional validation provided upon request.
Will it fit my existing COP 1838HD+ without modification?
Yes. It is fully dimensionally and functionally interchangeable with the original part — no rework, recalibration, or adapter needed.
What is the typical lead time for bulk orders?
In-stock items ship within 1–2 business days; custom/large orders (50+ units) typically deliver in 10–14 days — expedited options available.
How does its service life compare to standard aftermarket pistons?
Average service life is 25–40% longer than non-OEM alternatives due to optimized heat treatment depth and precision surface finish.

Detailed Description

Atlas Copco COP 1838HD+ Impact Piston 3115 2129 00 | Rock Drill Spare Parts

Product Overview

Part No. 3115 2129 00 is an impact piston used in Atlas Copco COP 1838HD+ rock drill.

It is one of the core components of the rock drill, responsible for generating high-frequency impact energy and transferring it to the shank adapter, which drives the drill steel to break rock.

The piston works under high pressure and high impact frequency, so material quality and machining accuracy are critical. Our product is manufactured according to OEM standards and can directly replace the original part.

Quick Details

  • Part Number: 3115 2129 00

  • Product Name: Impact Piston

  • Machine Model: COP 1838HD+, COP 1838HD, COP 1838ME

  • Application: Hydraulic Rock Drill

  • Material: High-strength alloy steel

  • Process: Precision machining + heat treatment

  • Type: OEM Replacement / Aftermarket

  • Condition: Brand New

  • Compatibility: 100% interchangeable with original

Key Selling Points

  • ✅ Core impact component with stable performance

  • ✅ High impact resistance and fatigue strength

  • ✅ Precision grinding for perfect fit and balance

  • ✅ Heat-treated surface for long service life

  • ✅ Reliable performance under high-frequency operation

  • ✅ Cost-effective replacement for OEM piston

Function

  • Generates high-frequency impact energy

  • Transfers удар force to shank adapter

  • Ensures efficient rock breaking

  • Maintains stable drilling performance

Applications

  • Underground mining drilling rigs

  • Tunneling jumbo machines

  • Quarry and surface drilling

  • Heavy-duty hydraulic rock drills

Quality & Production

  • Strict material selection (alloy steel)

  • Advanced heat treatment process

  • Precision machining and grinding

  • 100% inspection before shipment

  • Stable quality for long-term use

Other Available Parts

We supply full range of Atlas Copco / Epiroc rock drill spare parts:

  • Gearbox / rotation unit

  • Flushing head

  • Copper guide bushings

  • Hydraulic motors

  • Seal kits

  • Shank adapters

Keywords (SEO)

COP 1838HD+ impact piston
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rock drill piston replacement
Atlas Copco piston supplier
Epiroc rock drill spare parts

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