COP4050 Rock Drill | Alternative Spare Parts & Complete Drifter Unit

The COP4050 is a next-generation hydraulic rock drill developed by Epiroc for high-capacity, deep-hole top hammer drilling. Known for its high impact energy, enhanced durability, and exceptional reliability, the COP4050 is built to handle the most demanding drilling environments.

Onsamak Machinery supplies compatible spare parts for the COP4050 drifter, including pistons, chuck bushings, rotation assemblies, wear components, and full overhaul kits. Our parts are designed for exact fit and long-lasting performance under extreme working conditions.

We also offer complete COP4050 drifter units — assembled, pressure tested, and ready to install. All units are engineered to meet your production demands with minimal downtime.

Compatible COP4050 Spare Parts

• Heavy-duty Piston – High-impact forged steel
• Front Head & Rotation Assembly
• Driver, Sealing Kits, and Wear Plates
• Backhead Components and Side Covers
• Complete Rebuild / Overhaul Kits

Request a Complete COP4050 Drifter

Onsamak Machinery offers fully rebuilt and ready-to-install COP4050 units. All drifters are performance tested and delivered with full compatibility assurance.