Nordic pioneer
in the drilling industry

DF560G

Hydraulic impact hammer

Doofor DF560G is high frequency hydraulic impact hammer designed for the use of geothermal and other rotation drilling rigs.

The impact hammer have a rapid function control valve with a large surface for a high percussion frequency and optimal shock wave control. The valve optimizes the power distributed by the piston so, that the impact hammer is capable of delivering a full blow force in all hitting points.

The Doofor impact hammers utilize the Doofor – developed trapezoid impact piston, which increases the movement of the impact pulse in the drill tool string. The two high pressure accumulators and low number of serviceable parts makes the impact hammers’ uptime a long one. The cast iron body is light and rigid. The four bolt connections in the front makes the impact hammer easy to install.

Technical Data
Metric
Percussion power 20 kW
Percussion pressure 130 bar
(oil flow) (95-120litres/min)
Piston weight 6.5 kg
Weight 90 kg

20 kW

Power class

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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