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.
|Hole diameter drilling||64 - 127 mm|
|Power class||21 kW|
|Percussion rate||53 Hz|
80 - 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