HIGH-PERFORMANCE HYDRAULIC ROCK DRILL
Doofor DF550S is a high-frequency hydraulic rock drill specially designed for surface production drilling and general tunnel work. The rotation motor of the DF550S is installed on the top side of the rock drill. The rock drill has a separated flushing box. Flushing media can be water or air. Flushing parts are available in brass or in stainless steel to avoid corrosion caused by saline water.
Optimal maximum hole diameter for the DF550S is 76 mm [3”].
The rock drill can be equipped with shank adapters (striker bars) R38, T38, and T45.
This rock drill can be equipped with stainless steel, separated flushing head for underground mining, bolting, and grouting.
OPTIMAL MAXIMUM HOLE DIAMETER
R38, T38, T45
|Nominal power class||17 kW|
|Percussion pressure||160 bar|
|(Percussion oil-flow)||(90-120 litres/min)|
|Rotation motor*||125 cm3|
|Speed max.||250 rpm|
|Oil flow*||40 litres/min (max 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|
*) Motor options are 125 cm³, 160 cm³ and 200 cm³. Number given is for standard rotation motor (125 cm³) at an intermittent pressure of 275 bar [3989psi].
**) Number given is for standard rotation motor (125 cm³) at an operating pressure of 175 bar [2466psi].
Feed force (pressure) must be adjustable during operation. Rotation torque and oil flow values given are for a typical rotation motor. See full brochure for detailed information on different rotation motors. 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.