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

Hydraulic rock drill DF540L-BLT

Hole diameter [mm]

64

Power class [kW]

14

Doofor DF540L-BLT is a hydraulic rock drill designed for bolting, general excavations, and underground production drilling. The DF540L-BLT has a very low overhead, only 82.5 mm from the drill center line. The rotation motor of the DF540L-BLT 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 DF540L-BLT is an excellent bolting hammer with its low physical length and rugged, powerful rotation mechanism. BLT-version is equipped with multiple sealing and hermetic rotation mechanism for demanding underground conditions.

The rock drill can be equipped with male R32, R38, T38 and female FR28, and FR32 shank adapters.

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 is 64 mm [2 ½”].

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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 138 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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