Hydraulic rock drills and drifters
High-performance hydraulic rock drill
Doofor DF500S is a high-frequency hydraulic rock drill for bolting, general excavations, and tunneling. Suitable drill steels are 28mm [1 ¹/8"] and 32mm [1 ¼"] extension- and drifter steels. The rock drill is equipped with a separate side flushing box. Flushing can be done with water or with air.
Optimal maximum hole diameter for the DF500S is 45mm [1 ¾"].
The rock drill is equipped with R28 or R32 male shank adapter (striker bar).
|Percussion power||10 kW|
|Percussion pressure||100-130 bar|
|(oil flow)||(55-80 litres/min)|
|Rotation motor*||32 cm3|
|Speed max.||205 rpm|
|Oil flow max.*||25 litres/min|
|Lubrication||Air-oil mist, min. 75 g/h|
|Flushing air pressure||12 bar max.|
|Flushing air flow||700-1200 litres/min|
|Flushing water flow||25–30 litres/min|
Feed force (pressure) must be adjustable during operation
*) Numbers given are for standard rotation motor (32cm³) at an intermittent pressure of 140bar [2031psi]. Motor options are 12.5cm³, 20 cm³, 32cm³, 40cm³ and 50cm³.