DFR2
The Doofor DFR2 is a new generation high-power, high-frequency rock drill used for general excavations and quarrying. This rock drill is equipped with a hexagonal female chuck. Flushing media can be air or water. The rock drill has a through-piston flushing tube and advanced piston sealing.
DFR2 uses a high-energy piston shape for high-penetration speed in hard rock drilling operations and is efficient in preserving good drill tool life. This model can be used with a Doofor original drill feed system component kit.
45 MM
OPTIMAL MAXIMUM HOLE DIAMETER
7 KW
POWER CLASS
HEX 22mm, HEX 25mm
SHANK SIZE
AIR/WATER/MIST
FLUSHING
| Nominal power class | 7 kW |
| Percussion pressure | 130–160 bar |
| (Percussion oil-flow) | (40–50 l/min) |
| Rotation motors (cm3) | 12.5, 20, 32, 40, 50 |
| Rotation speed max. | 131–507 RPM |
| Rotatio torque* | 70–269 Nm |
| Rotation oil flow* | 25 l/min |
| Lubrication | Air-oil-mist, min. 125–200 g/h |
| Flushing air pressure. | 5–12 bar |
| Flushing air flow | 700-1200 l/min |
| Flushing water flow | 25–40 l/min |
| Weight | 61 kg |
*) Numbers given are for available motors. See techical specifiactions for more detailed values. Numbers given are examples for typical jobs and installations. Please refer to catalogue and technical specifications for detailed information on the Doofor products.
