The Doofor DF540L-BLT Rock Drill is a Hydraulic Rock Drill designed for Bolting, general excavations, and Underground Production Drilling.
The Doofor DF540L-BLT has a very low overhead, only 82.5mm from the drill center line.
The DF540L-BLT rotation motor 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.
The flushing media can be water or air.
The Doofor DF540L-BLT is an excellent bolting hammer with its low physical length and rugged, powerful rotation mechanism.
The BLT-version is equipped with multiple sealing points and a Hermetic Rotation Mechanism for demanding Underground Mining conditions.
The Rock Drill can be equipped with male R32, R38, T38 and female FR28, and FR32 shank adapters.
This DF540L-BLT Rock Drill can be equipped with a stainless steel, separated flushing head for Underground Mining, Bolting, and Grouting.
Optimal maximum hole diameter for the DF540L-BLT is 64 mm [2 ½”].
 
MAIN APPLICATIONS:
Underground Mining & Tunnelling
 
 
TECHNICAL SPECIFICATIONS:
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*
30 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
*) Motor options are 80 cm³, 100 cm³, 125 cm³, 160 cm³ and 200 cm³. Number given is for standard rotation motor (80 cm³) at an intermittent pressure of 275 bar [3989psi].
**) Number given is for standard rotation motor (80 cm³) at an operating pressure of 175 bar [2466psi].
The product is for professional use only, as a component of a hydraulic system.
 
NOTE: The feed force (pressure) must be adjustable during operation.
The rotation torque and oil flow values given are for a typical rotation motor.
See the 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.