1 Adopting advanced AC-SCR-DC technology 2 Rotary table is driven by drawworks or by an independent motor.

1     Adopting advanced AC-SCR-DC technology, smooth shift changes are available for drawworks, rotary table and mud pumps for optimum drilling performance;

2     Both swing lift and sling-shot parallel-integrated substructures with 9m and 10.5m floor height are optional. All parts on rig floor and mast are installed on ground and raised with drawworks power;

3     Rotary table is driven by drawworks or by an independent motor.

4    Main brake of drawworks can be hydraulic disc brake. Auxiliary brake of drawworks may be air-cooled or water-cooled electric magnetic eddy brake;

5     A separate driller cabin is fitted. Operations for air, electric and hydraulic, drilling instruments are all in the cabin. Logic control, supervision and maintenance during complete drilling operations are available by PLC processes. The parameters of drilling instruments can be displayed, printed and remote transmitted. All operations by driller can be completed in the cabin for better working conditions and less working strength;

6     Top drive drilling system can be assembled.

DZJ50 Drilling Rig