High-performance hydraulic rock drill
Doofor DF550L-BLT-2M is a hydraulic rock drill equipped with two rotation motors and multiple sealing and hermetic rotation mechanism for demanding underground conditions. Two rotation motors enable continuous, high torque while maintaining high rotation speed. The stainless steel BLT-flushing head can be turned upside down. Motor fitting direction can be specified (up, down or side).
Doofor DF550L-BLT-2M is a high-frequency hydraulic rock drill specially designed for ground stabilization and general excavations. The drifter has a very low overhead, only 84 mm from the drill center line.
The 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 (striker bars) R32, R38, T38, and T45.
Optimal maximum hole diameter for the DF550L is 76 mm.
|Percussion power||17 kW|
|Percussion pressure||160 bar|
|(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)|
|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|
AIR / WATER / OTHER
*) Numbers given are for two standard rotation motors (2*160 cm³) at an intermittent pressure of 260 bar [3770psi]. Motor options are 80 cm³, 100 cm³, 125 cm³ and 160 cm³. For professional use only as a component of a hydraulic system.