Designed to endure
demanding environments


Doofor DF538L hydraulic drifter
High-performance hydraulic rock drill

Doofor DF538L is a hydraulic drifter for general excavations, tunneling work, and mining. Typical applications include narrow vein jumbos and excavator drill attachments. The Doofor DF538L has two rotation motors for high torque. Rotation gear is robust and durable for surface and underground use.

The rock drill is equipped with a separated flushing box. Flushing can be done with water or air.

The Doofor DF538L is designed to drill up to 57 mm diameter drill holes in hard rock.

Technical data
Nominal power class13 kW
Percussion pressure110-140 bar
(Percussion oil-flow)(65-85 litres/min)
Rotation motors*2*32 cm3
Speed max.250 rpm
Torque*295 Nm
Oil flow*2*15 litres/min (max 2*25 litres/min)
Gear ratio57/22
LubricationAir-oil mist, min. 150 g/h
Flushing air pressure5–7 bar
Flushing air flow1500-2500 litres/min
Flushing water pressure12 bar
Flushing water flow max.40 litres/min
Weight83 kg

57 mm

Optimal maximum
hole diameter

13 kW

Power class

R32, R38

Shank size




*) Numbers given are for two standard rotation motors (32 cm³) with 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 DF538L 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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