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