Designed to endure
demanding environments

Hydraulic rock drills and drifters

DF430X – DF430S – DF430F – DF500X – DF500S – DF530X – DF530SDF538L – DF540L – DF540L-BLT – DF550L – DF550L-2M – DF550L-EXT – DF560L - DF560L-2M – DF560L-EXT

DF550L

High-performance hydraulic rock drill

Doofor DF550L is a high-frequency hydraulic rock drill specially designed for underground production drilling and tunneling. The DF550L has a very low overhead, only 84mm from the drill center line. The rotation motor of the DF550L can be installed on the right-hand or the left-hand side.

The rock drill has a separated flushing box. Flushing media can be water or air. It can be equipped with shank adapters (striker bars) R32, R38, T38, and T45. It can also be equipped with stainless steel, separated flushing head for underground mining, bolting, and grouting.

Optimal maximum hole diameter for the DF550L is 76mm [3”].

Doofor DF550L hydraulic rock drill
 Technical Data
 Metric
 Percussion power  17 kW
 Percussion pressure  160 bar
 (oil flow)  (90-120 litres/min)
 Rotation motor*  125 cm3
 Speed max.  250 rpm
 Torque*  796 Nm
 Oil flow max.*  51 litres/min
 Gear ratio  65/40
 Lubrication  Air-oil mist, min. 75 g/h
 Flushing air pressure  5–7 bar
 Flushing air flow  4000 litres/min
 Flushing water flow  150 litres/min
 Weight  152 kg


Feed force (pressure)must be adjustable during operation
*) Numbers given are for standard rotation motor (125cm³) at an intermittent pressure of 275bar [3989psi]. Motor options are 80cm³, 100cm³, 125cm³, 160cm³ (right hand side installation).

 

76 mm
Optimal maximum
hole diameter
17 kW
Power class
R32
R38
T38
T45
Shank size
AIR / WATER
Flushing

Doofor DF550L in action

Doofor DF550L hydraulic rock drill in action

Doofor DF550L hydraulic rock drill in action

Doofor DF550L hydraulic rock drill in action