MD20 Electric Hammer Cleaning Component Repair Kit3115557181Epiroc

Epiroc 3115557181 (MD20 Electric Hammer Cleaning Component Repair Kit)

1. Basic Information

• Part No.: 3115557181
• Name: MD20 Electric Hammer Cleaning Component Repair Kit
• Brand: Epiroc (Atlas Copco legacy)
• Application: For Epiroc COP MD20 hydraulic rock drill (underground drifting, 20 kW, 33–64 mm holes); servicing flushing/cleaning circuit components (pistons, valves, seals).
• Kit Contents: Wiper seals, rod/piston seals, O-rings, backup rings, wear rings, gaskets, and fasteners for the cleaning assembly.
• Weight: Approx. 0.5–0.7 kg
• Note: “Electric Hammer” is a common field term for the hydraulic drifter COP MD20.

2. Technical Specifications

• Fluid: Anti-wear hydraulic oil / mineral oil
• Pressure Rating: Max 250 bar (3,625 psi)
• Temperature Range: -20°C to +100°C
• Seal Materials:
  • Wiper: NBR (nitrile rubber)
  • Rod/Piston: NBR + PTFE backup
  • O-rings: NBR (70 Shore A)
  • Wear rings: Phenolic fabric
  
  
• Features: Dust/moisture resistant, low friction, high extrusion resistance; for heavy underground mining.

4. Installation Notes

• Service the flushing head / cleaning component on COP MD20 drifters.
• Replace all seals as a set; do not mix old/new.
• Clean cylinder, piston, and gland; avoid sharp edges.
• Lubricate seals with clean hydraulic oil during assembly.
• Pressure-test: low pressure first, then ramp to working pressure.

5. Product Image (Clean, No Logo/Watermark)