Double-start drilling bucket with revolving hinged bottom gate, round shank chisels, calibrating cutter and pilot bit.
Effective length - 1,500 mm
1,500 mm
Diameter - 1,200 - 2,000 mm
1,200 - 2,000 mm
No. of cutters - double-start
double-start
Pilot - Round shank chisel
Round shank chisel
Connector - Kelly box - 200 mm Spanner width
Kelly box - 200 mm Spanner width
Casing - uncased
uncased
Range of application - Very densely consolidated non-cohesive soils, low strength rock up to approx. 50 Mpa and secant bored piled walls.
Very densely consolidated non-cohesive soils, low strength rock up to approx. 50 Mpa and secant bored piled walls.
Equipment - Kelly box 200 mm, round shank chisels, round shank chisel pilot bit, automatic opening mechanism in heavy-duty version with guided opening rod, calibration chisel, ventilation channel, hardfacing as wear protection
Kelly box 200 mm, round shank chisels, round shank chisel pilot bit, automatic opening mechanism in heavy-duty version with guided opening rod, calibration chisel, ventilation channel, hardfacing as wear protection