Designed to endure
demanding environments

DF540L-BLT

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”].

Technical Data
Metric
Percussion power 14 kW
Percussion pressure 140 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. 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
FR28, FR32

Shank size

AIR / WATER

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