Hydraulic rock drills and drifters
High-performance hydraulic rock drill
Doofor DF560L-EXT is a high-frequency hydraulic rock drill specially designed for underground production drilling and tunneling. The DF560L-EXT has a very low overhead, only 84mm from the drill center line. The rotation motor of the DF560L-EXT can be installed on the right-hand or the left-hand side. The rock drill has a separated flushing box. Flushing media can be water or air. Flushing parts are available in bronze or in plastic to avoid corrosion caused by saline water. EXT-version is for back hammering to break drill strings and for removing stuck drill steels from the rock.
Optimal maximum hole diameter for the DF560L-EXT is 89mm [3 ½”].
The rock drill can be equipped with shank adapters (striker bars) R38, T38, and T45. It can be equipped with stainless steel, separated flushing head for underground mining, bolting, and grouting.
The DF560L-EXT can be equipped with heat resistant sealing for tap hole drilling.
|Percussion power||20 kW|
|Percussion pressure||150 bar|
|(oil flow)||(110-130 litres/min)|
|Speed max.||250 rpm|
|Oil flow max.*||65 litres/min|
|Lubrication||Air-oil mist, min. 75 g/h|
|Flushing air pressure||5–7 bar|
|Flushing air flow||4000 litres/min|
|Flushing water flow||150 litres/min|