Atlas Copco has launched three new heavyduty versions of its proven COP 1800 series hydraulic rock drills. The new models include the COP 1638HD, COP 1838HD and COP 2238HD and are intended for face drilling in underground mining and tunneling projects involving tough conditions.

A primary feature of the new drills is a new side-bolt design consisting of four front bolts and two at the rear. This minimizes the risk of impact piston misalignment and secondary damage to internal parts. It also improves serviceability due to easier side-bolt torque procedures. In addition, says the company, the front head has been strengthened, making the rock drills more robust for demanding conditions.

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