Sandvik HL1560ST is a heavy-duty hydraulic rock drill designed for large diameter longhole drilling. The construction of the rock drill is based on three body modules tied together with short side bolts which ensures a minimum number of joint faces and large contact surfaces. The percussion module is simple in design and consists of only two moving parts – the piston and the distributor sleeve around the piston - which are not in contact with the body of the rock drill.

Sandvik HL1560ST is fitted with a stabilizer, which is designed to keep the shank adapter in an optimal position in relation to the piston; this ensures good rock/bit contact and energy transfer, high penetration rate, good hole straightness and rock tool service life.

There are two rotation motor variants to meet the rotation torque and RPM requirements in the HL1560ST application range. An optional power extractor can be used for opening rock tool joints manually or automatically when using one-hole or fan automation and the design of Sandvik HL1560ST is covered by several patents.