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 Specifications

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
39 mm rod T35 / 600
39 mm rod T38 / 600
46 mm rod T45 / 600
52 mm rod T51 / 600

Atlas Copco, Epiroc, Tamrock, Sandvik, Furukawa, Montabert

or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.