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Doofor DF528 hydraulic rock drill

Doofor DF528 is a high frequency hydraulic rock drill for bolting, general excavations and tunnelling. Suitable
drill steels are 28mm:n (1 1/8”) extension- and drifter steels. The rock drill is equipped with a separate side flushing box.

Flushing can be done with air or with water.

Doofor DF528 is suitable for drilling up to 41mm (maximum 45mm) holes. The rock drill is equipped with a R28 –shank adapter (strike bar).

 
percussion power class kW  10
percussion oil flow l/min 70-80
percussion pressure bar 120-140
rotation speed RPM 175
rotation torque* Nm 150-250
rotation oil flow l/min 15-25
shank lubrication air l/min 200-300
flushing air pressure bar 5-7
flushing air volume l/min 800-1800
flushing water l/min 25-30
weight kg 77

DOWNLOAD TECHNICAL SPECIFICATION [PDF-file]

*) Numbers given are for a standard rotation motor (32cm³) at a peak pressure of 140bar. Motor options are 12,5cm³, 20 cm³, 32cm³, 40cm³ and 50cm³.

PROTECTED BY VARIOUS PATENTS AND APPLICATIONS. MADE IN FINLAND.
MANUFACTURER RESERVES ALL RIGHTS FOR CHANGES WITHOUT PRIOR NOTICE. © DOOFOR OY 2006.


The Doofor DF528 drifter in a drilling rig manufactured by GGC Drilling & Blasting. Rig is made by Piedmont Drilling Equipment LLC in Virginia, USA.