Hydraulic rock drill DF540L-EXT
category:
Hydraulic percussion rock drills

Hydraulic rock drill DF540L-EXT

Hole diameter [mm]

64

Power class [kW]

14

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).

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  • Nominal power class 14 kW
  • Percussion pressure 140 bar
  • Percussion oil-flow (90 litres/min)
  • Rotation motor* 80 cm3
  • Speed max. 250 rpm
  • Torque* 504 Nm
  • Oil flow* 40 litres/min (max. 80 litres/min)
  • Gear ratio 65/40
  • 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
  • Weight 159 kg

*) Numbers given are for standard rotation motor (80 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.

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