SCR Drilling Rigs
● The drawworks is driven by two DC motors with 4+4R step-less speed, and reversal will be realized by DC motor reversal.
● The mud pump is driven by DC motors, which are mounted on the rear skid of mud pump, with V-belt transmission and simple structure.
● The independent driven rotary table runs with 1+1R/2+2R step-less speed and reversal will be realized by DC motor reversal.
● The world popular AC-SCR-DC drive technology is used.
● K type mast is suitable for install top drive system.
● Sling shot or swing up substructure and mast are used so that all the equipment can be installed at lower position.