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 the shank adapter and drill steel. Manufactured to strict OEM specifications using high-strength alloy steel and advanced heat treatment, it delivers exceptional impact resistance, fatigue strength, and dimensional accuracy for stable, long-life performance under extreme operating conditions.

Designed as a direct, 100% interchangeable replacement, this piston ensures seamless integration, optimal balance, and consistent drilling efficiency across underground mining, tunneling jumbos, and heavy-duty quarry applications.

Key Advantages

  • OEM-spec design with full interchangeability for COP 1838HD+, HD, and ME models
  • High-strength alloy steel + controlled heat treatment for superior impact resistance & fatigue life
  • Precision grinding ensures perfect fit, dynamic balance, and minimal vibration
  • 100% pre-shipment inspection for dimensional accuracy and surface integrity
  • Optimized for high-frequency, high-pressure operation in demanding rock drilling environments
  • Cost-effective alternative to original equipment without compromising reliability

Applications

  • Underground hard-rock mining drilling rigs
  • Tunnel boring and excavation jumbo machines
  • Quarry and open-pit surface drilling operations
  • Heavy-duty hydraulic rock drills in abrasive conditions
  • Retrofit and maintenance programs for aging COP 1838 fleets
  • OEM service centers and authorized distributors

Technical Specifications

Part Number3115 2129 00
Compatible ModelsCOP 1838HD+, COP 1838HD, COP 1838ME
MaterialHeat-treated high-strength alloy steel
ProcessPrecision CNC machining + surface hardening + fine grinding
TypeOEM replacement / aftermarket
ConditionBrand new, vacuum-packed

FAQ

Is this piston compatible with older COP 1838HD units?
Yes — it is fully interchangeable with COP 1838HD+, HD, and ME variants per Atlas Copco’s latest service bulletin.
What quality certifications does this part meet?
Manufactured under ISO 9001:2015; material traceability, hardness testing (HRC 58–62), and geometric tolerance verification included.
What is the typical lead time for bulk orders?
Standard lead time is 3–5 business days for in-stock units; custom batches (≥50 pcs) ship in 12–18 days with advance notice.
Does it require special installation procedures or tools?
No — installs using standard COP 1838HD+ service manuals and factory-recommended torque specs; no re-calibration needed.

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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Atlas Copco piston supplier
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