HL820T Rock drill

Sandvik HL820T Rock drill

Sandvik HL820T hydraulic rock drill is designed for drilling 64 - 127 mm diameter holes in Sandvik hydraulically controlled surface long hole drill rigs.

Sandvik HL820T is a heavy hydraulic percussive rock drill with independent rotation and separate flushing. Whilst high drilling capacity and reliability are enabled by functional modules, Sandvik HL820T is equipped with a hydraulic stabilizer to control contact between drill bit and rock. This ensures optimal drilling performance with high drill steel lifetime and three rotation motor options are available for torque/speed adjustment.

An optional power extractor guarantees trouble-free drilling in extreme conditions and the design is covered by several patents.

Technical data
Hole diameter drilling 64 - 127 mm
Power class 21 kW
Percussion rate 53 Hz
Operating pressure
Rotation (max.)

80 - 200 bar
200 bar
Rotation motor type OMT 200, OMT 250, OMT 315
Drill steels 38 mm / 45 mm / 51 mm
38 mm rods (Not optimal)
45 mm rods
51 mm rods (Optimal)
Male type, side flushing
T38 / 600
T45 / 600
T51 / 600