High performance hydraulic rock drill
Doofor DF540L-EXT-2M is a hydraulic rock drill in the 14kW size class and it has a hydraulic extractor function and two OMS-type rotation motors. Motor displacement can vary between 80cm3 to 160cm3. Two rotation motors offer a consistent torque and yet a high rotation speed necessary for successful high frequency rock drilling. It is designed for general excavations, underground production drilling and bolting.
The DF540L-EXT-2M has a low overhead, which makes it a good underground and limited access drifter and a patented percussion valve for optimal flow-power ratio.
Flushing media can be water or air. The rock drill can be equipped with male R32, R38 and T38 shank adapters (striker bars).
|Percussion power||14 kW|
|Percussion pressure||140 bar|
|(oil flow)||(90 litres/min)|
|Rotation motors||80-160 cm3
|Speed max.||250 rpm|
|Torque (2 * 125cm3)||1592 Nm|
|Oil flow max.*||90 litres/min|
|Lubrication||Air-oil mist, min. 200 g/h|
|Flushing air pressure||5–7 bar|
|Flushing air flow||4000 litres/min|
|Flushing water flow||150 litres/min|