Hydraulic rock drills and drifters
High-performance hydraulic rock drill
Doofor DF550L-2M is a high-frequency hydraulic rock drill specially designed for underground production drilling and tunneling. The DF550L-2M has a very low overhead, only 84mm from the drill center line. 2M versions are equipped with two 160cm3 OMS-series rotation motors. This enables continuous, high torque (1593Nm).
The rock drill has a separated flushing box. Flushing media can be water or air.
The rock drill can be equipped with shank adapters (striker bars) R32, R38, T38, and T45. It can be equipped with stainless steel, separated flushing head for underground mining, bolting, and grouting.
Optimal maximum hole diameter for the DF550L is 76mm [3”].
|Percussion power||17 kW|
|Percussion pressure||160 bar|
|(oil flow)||(90-120 litres/min)|
|Rotation motor*||Two 160cm3 OMS-series rotation motors|
|Speed max.||250 rpm|
|Torque*||Continuous torque 1593Nm|
|Oil flow max.*||51 litres/min|
|Lubrication||Air-oil mist, min. 250 g/h|
|Flushing air pressure||5–7 bar|
|Flushing air flow||4000 litres/min|
|Flushing water flow||150 litres/min|