Hydraulic rock drill DF540L-BLT-2M
Wiertarka hydrauliczna udarowa DF540L-BLT-2M
Hydraulic percussion rock drills

Hydraulic rock drill DF540L-BLT-2M

Hole diameter [mm]


Power class [kW]


Doofor DF540L-BLT-2M is a hydraulic drifter in the 14kW size class with two OMS-type rotation motors and a BLT-flushing head. The rock drill is designed for bolting, general excavations, and ground stabilization. The DF540L-BLT-2M has very low overhead and two rotation motors. Two rotation motors offer a stable, high torque while offering a high rotation speed necessary for patented high-frequency percussion.

Flushing media can be water or air or even grout (limitations apply). BLT-versions are protected with multiple sealing and hermetic rotation mechanism for demanding underground conditions.
Available shank adapters are R32, T35, R38, T38, and T45.
This rock drill can be equipped with stainless steel, separated flushing head for underground mining, bolting, and grouting.
Optimal maximum hole diameter for the DF540L-BLT-2M is 64 mm.

  • Nominal power class 14 kW
  • Percussion pressure 140 bar
  • Percussion oil-flow (90 litres/min)
  • Rotation motor* 2*125 cm3
  • Speed max. 250 rpm
  • Torque* 1592 Nm
  • Oil flow* 2*40 litres/min (max 2*90 litres/min)
  • Gear ratio 65/40
  • Lubrication Air-oil mist 250–350 g/h
  • Flushing air pressure 5–7 bar
  • Flushing air flow 4000 litres/min
  • Flushing water flow 150 litres/min
  • Weight 165 kg

*) Numbers given are for standard rotation motors (2*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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