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 80 cm³ to 160 cm³. 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).
|Nominal power class||14 kW|
|Percussion pressure||140 bar|
|(Percussion oil-flow)||(90 litres/min)|
|Rotation motors||2*125 cm3|
|Speed max.||250 rpm|
|Oil flow*||2*40 litres/min (max. 2*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|
R32, R38, T38
AIR / WATER
*) Numbers given are for two standard rotation motors (2*125 cm³) at an intermittent pressure of 275 bar [3989psi]. Motor options are 80 cm³, 100 cm³, 125 cm³, 160 cm³, 200 cm³, 250 cm³. For professional use only as a component of a hydraulic system.