The Doofor DF550L-BLTG-2M Rok Drill is a hydraulic rock drill equipped with two rotation motors, multiple sealings and a Hermetic Rotation mechanism for demanding underground conditions.
Two rotation motors enables continuous, high torque while maintaining high rotation speed. The Doofor stainless steel BLT-flushing head can be turned upside down. The Motor fitting direction can be specified, such as up, down or side placement.
The Doofor DF550L-BLTG-2M is a high-frequency Hydraulic Rock Drill specially designed for ground stabilisation and general excavations.
The drifter has a very low overhead height, only 84 mm from the drill center line.
The Doofor Rock Drill has a separated, non-corrosive flushing box. Flushing media can be water, air or grout (limitations apply). The Rock Drill can be equipped with shank adapters in the size range of (striker bars) R32, R38, T38, and T45.
Optimal maximum hole diameter for the DF550L is 76 mm.
 
SUITABLE APPLICATIONS:
Civil Engineering, Surface
 
TECHNICAL SPECIFICATIONS:
Nominal power class
17 kW
Percussion pressure
160 bar
(Percussion oil-flow)
(95-120 litres/min)
Rotation motors*
2*160 cm3
Speed max.
250 rpm
Torque (2*160 cm3)*
1950 Nm
Oil flow*
2*40 litres/min (max 2*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
198 kg
*) Motor options are 80 cm³, 100 cm³, 125 cm³ and 160 cm³. Number given is for standard rotation motors (2*160 cm³) at an intermittent pressure of 275 bar [3989psi].
**) Number given is for standard rotation motor (2*160cm³) 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.
The 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.