HL1560ST Rock drill

Sandvik HL1560ST Rock drill

Sandvik HL1560ST is a hydraulic top hammer rock drill designed for DL411 and DL421 underground longhole drills. It is capable of drilling 89 - 127 mm holes up to 54 meters in depth, using T51 MF-rods or ST58 and ST68 tube rods.

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.

Technical data
Hole diameter drilling 89 - 127 mm
Power class 33 kW
Percussion rate 30 - 40 Hz
Operating pressure
Rotation (max.)

90 - 200 bar
200 bar
Rotation motor type OMT 400, OMT 500
Stabilizer Sleeve type
Weight 470 - 490 kg
Rock tools and hole diameters
Thread Rod mm Hole mm
T51 52 89
ST58 76 (tube) 89 - 102
ST68 87 (tube) 102 - 127