DF550L-THD

Doofor DF550L-THD is a high-frequency hydraulic rock drill specially designed for tap hole drilling.

The rock drill has a separated flushing box and heat-resistant sealing. It can be equipped with shank adapters R32, R38, and T38.

Optimal maximum hole diameter for the DF550L-THD is 76 mm.

76 MM

OPTIMAL MAXIMUM HOLE DIAMETER

17 KW

POWER CLASS

R32, R38, T38, T45

SHANK SIZE

AIR/WATER

FLUSHING

Nominal power class 17 kW
Percussion pressure 160 bar
(Percussion oil-flow) (90-120 litres/min)
Rotation motor* 125 cm3
Speed max. 250 rpm
Torque* 796 Nm
Oil flow*40 litres/min (max 90 litres/min)
Gear ratio 65/40
LubricationAir-oil mist, min. 200 g/h
Flushing air pressure. 5-7 bar max.
Flushing air flow 4000 litres/min
Flushing water flowN/A
Weight152 kg

*) Motor options are 80 cm³, 100 cm³, 125 cm³, 160 cm³ and , 200 cm³ (left-hand side only). 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].

The product is for professional use only, as a component of a hydraulic system.

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.

NEW DOOFOR 2026 GENERAL BROCHURE AVAILABLE

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