Designed to endure
demanding environments

Hydraulic rock drills and drifters

DF430X – DF430S – DF430F – DF500X – DF500S – DF530X – DF530SDF538L – DF540L – DF540L-BLT – DF550L – DF550L-2M – DF550L-EXT – DF560L - DF560L-2M – DF560L-EXT


High performance hydraulic rock drill

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 82.5mm 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 64mm [2 ½”].

Doofor DF540L rock drill
 Technical Data
 Percussion power  14 kW
 Percussion pressure  150 bar
 (oil flow)  (90 litres/min)
 Rotation motor*  80 cm3
 Speed max.  250 rpm
 Torque*  504 Nm
 Oil flow max.*  90 litres/min
 Gear ratio  65/40
 Lubrication  Air-oil mist, min. 75 g/h
 Flushing air pressure  5–7 bar
 Flushing air flow  4000 litres/min
 Flushing water flow  150 litres/min
 Weight  132 kg



64 mm
Optimal maximum
hole diameter
14 kW
Power class
Shank size