High performance hydraulic rock drill
Doofor DF540L-EXT is a hydraulic rock drill in the 14kW size class and it has a hydraulic extractor function. It is designed for general excavations, underground production drilling and bolting.
The DF540L-EXT has a low overhead, which makes it a good underground and limited access drifter and a patented percussion valve for optimal flow-power ratio. The rotation motor of the DF540L-EXT can be installed on the right-hand or the left-hand side. The drifter is completely horizontally symmetric so that it can be installed in a variety of positions.
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 motor*||80 cm3|
|Speed max.||250 rpm|
|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|