Designed to endure
demanding environments


High-performance hydraulic rock drill

Doofor DF500S is a high-frequency hydraulic rock drill for bolting, general excavations, and tunneling. The rock drill is equipped with a separated side flushing box. Flushing can be done with water or with air.

Optimal maximum hole diameter for the DF500S is 45 mm in hard rock.

The rock drill is equipped with R28 or R32 male shank adapter (striker bar).

Technical Data
Nominal power class10 kW
Percussion pressure100-130 bar
(Percussion oil-flow)(55-80 litres/min)
Rotation motor*32 cm3
Speed max.205 rpm
Torque*175 Nm
Oil flow*15 litres/min (max 25 litres/min)
Gear ratio52/17
LubricationAir-oil mist, min. 125 g/h
Flushing air pressure12 bar max.
Flushing air flow700-1200 litres/min
Flushing water flow25–30 litres/min
Weight77 kg

45 mm

Optimal maximum
hole diameter

10 kW

Power class

R28, R32

Shank size



*) Numbers given are for standard rotation motor (32 cm³) at an intermittent pressure of 140 bar [2031psi]. Motor options are 8 cm³, 12.5 cm³, 20 cm³, 32 cm³, 40 cm³ and 50 cm³. For professional use only as a component of a hydraulic system.

Doofor DF500S 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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