Designed to endure
demanding environments

DF540L-BLT-2M

High performance hydraulic rock drill

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 stabilisation. The DF540L-BLT-2M has a 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 64mm.

Technical Data
Metric
Percussion power 14 kW
Percussion pressure 140 bar
(oil flow) (90 litres/min)
Rotation motors 80-200 cm3
Speed max. 250 rpm
Torque (2*125 cm3) 1592 Nm
Oil flow max.* 90 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 132 kg

64 mm

Optimal maximum
hole diameter

14 kW

Power class

R32, R38, T38, T45

Shank size

AIR / WATER / OTHER

Flushing

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