Designed to endure
demanding environments


Doofor DF430S is a high-frequency rock drill.
High-performance hydraulic rock drill

Doofor DF430S is a high-frequency rock drill made for general excavations, mining, quarrying, and bolting. Suitable drill steels are 25mm and 28mm extension and drifter steels. The rock drills are equipped with a separate side flushing box. Flushing can be done with air or with water.

The DF430S rock drill can be equipped with a male R25 or R28 shank adapter (striker bar).

Technical Data
Nominal power class5 kW
Percussion pressure120 bar
(Percussion oil-flow)(45 litres/min)
Rotation motor*20 cm3
Speed max.180–300 rpm
Torque*100 Nm
Oil flow*15 litres/min (max. 25 litres/min)
Gear ratio47/17
LubricationAir-oil mist, min. 125 g/h
Flushing air pressuremax. 12 bar
Flushing air flow700-1200 litres/min
Flushing water flow15–30 litres/min
Weight50 kg

41 mm


5 kW

Power class


shank size

*) Numbers given are for standard rotation motor (20cm³) with an intermittent pressure of 140bar [2031psi]. Motor options are 8cm³, 12.5cm³, 20 cm³, 32cm³, 40cm³. For professional use only as a component of a hydraulic system.

Doofor DF430S in action

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.

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