Sandvik HL710 hydraulic rock drill is designed for long hole drilling of 64 - 115 mm diameter holes. It is used in Sandvik underground production and surface drill rigs.
Sandvik HL710 is a heavy hydraulic percussive rock drill with independent rotation and separate flushing. High drilling capacity and reliability is achieved through functional modules.
Three rotation motor type options are available for torque/speed adjustment. The design is covered by several patents.