Nordic pioneer
in the drilling industry


Doofor DF540L-2M hydraulic rock drill
High-performance hydraulic rock drill

Doofor DF540L-2M is a hydraulic drifter in the 14kW size class with two OMS-type rotation motors and a standard flushing head. The rock drill is designed for general excavations and ground stabilisation. The DF540L-2M has a 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 air-water -mist. 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 (BLT-version).

Optimal maximum hole diameter for the DF540L is 64mm.

Technical data
Nominal power class14 kW
Percussion pressure140 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 ratio65/40
LubricationAir-oil mist 250–350 g/h
Flushing air pressure5–7 bar
Flushing air flow4000 litres/min
Flushing water flow150 litres/min
Weight165 kg

64 mm

Optimal maximum
hole diameter

14 kW

Power class

R32, R38, T38

Shank size



*) Numbers given are for standard rotation motor (2*125 cm³) at max. the pressure of 275 bar. 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.

Doofor DF540L in action

Feed force (pressure) must be adjustable during operation. Rotation torque and oil flow values given are for a typical rotation motor. See full brochure for detailed information on different rotation motors. Percussion pressure mentioned is a recommended value for a typical application. The product is intended for professional use by skilled personnel. Doofor reserves all rights for changes without prior notice.

©2019 Doofor Inc