DQ70BSC

DQ70BSC Specifications

Drive Mode AC VFD
Nominal Drilling Depth 7,000m
(114mm drill pipe)		 22,9668ft
(4 1/2 drill pipe)
(API8A/8C PSL 1)
Rated Load Capacities		 4,500kN 500ton(US)
Power Supply 600VAC/50Hz(60Hz)
Main Motor Rated Power
(continuous)		 295kW x 2 400HP x 2
Rotary Speed 0-200r/min
Drilling Torque
(continuous)		 50kN . m 36,900lbf . ft
Maximum Torque of Break-Out 75kN . m 55,300lbf . ft
Backup Tong Range 87-220 mm 2 7/8-6 5/8 in
(drill pipe)
Hydraulic System Working Pressure 16 MPa 2,280 psi
Mud Criculating Diameter 75 mm 3 in
Rated Criculating Pressure 35 Mpa 5,000 psi
Main Body Working Height 6.1 m 20 ft
Main Body Width 1,663 mm 5.46 ft
Distance of Guide Rail to the Center of Well 930 mm 3.05 ft

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