HL820ST ROCK DRILL
Sandvik HL820ST is a hydraulic top hammer rock drill designed for DL311 and DL321 underground longhole drills. It is capable of drilling 54 - 89 mm holes up to 38 meters in depth, using T35, T38, T45, T51 MF-rods or 65 mm tube rods.
Technical data
Impact Ratings | |
Power class | 21 kW |
Percussion rate | 42-53 Hz |
Hole diameter range | 54-89 mm |
Operating pressure | |
Percussion | 80 - 200 bar |
Rotation | 200 bar |
Rotation motor type | |
Motor type | OMT200 / 250 |
Shanks | |
39 mm rod | T35 / 600 |
39 mm rod | T38 / 600 |
46 mm rod | T45 / 600 |
52 mm rod | T51 / 600 |