Hydraulic rock drills and drifters
High-performance hydraulic rock drill
Doofor DF430X rock drill is a high-frequency rock drill for general excavations, quarrying and bolting with hexagonal shank steels with a shank size of 108mm [4 ¼”] * 22mm [7/8”] or 25mm [1”]. The rock drill has a female hexagonal chuck.
Doofor DF430X can use water or air as media for drill hole flushing. It has a flushing tube for enhanced flushing power. The rock drill has a patented, high energy piston shape for good penetration speed in hard rock and good drill tool lifetime.
Light piston models DF410X and DF420X are available.
Hydraulic, pneumatic and mechanical steel retainer lock cylinders are available from the manufacturer. Manufacturer can also provide a universal carriage plate for the rock drill.
|Percussion power||5 kW|
|Percussion pressure||120 bar|
|(Percussion oil flow)||(45 litres/min)|
|Rotation motor*||20,0 cm3|
|Rotation speed max.||200–300 rpm|
|Oil flow max.*||10–15 litres/min|
|Lubrication||Air-oil mist, min. 125 g/h|
|Flushing air pressure||5–8 bar|
|Flushing air flow||700-1200 litres/min|
|Flushing water flow||15–30 litres/min|
Feed force (pressure) must be adjustable during operation.
For efficient lubrication, the lubrication air pressure should always be set 2 bar higher than flushing pressure.
*) Numbers given are for standard rotation motors at an intermittent pressure of 140bar [2031psi]. Motor options are 12.5cm³, 20 cm³, 32cm³, 40cm³. For professional use only as a component of a hydraulic system.