Self erecting drilling rig is suitable for drilling great diameters using the kelly bar system with casing tubes directly with the rotary. The drilling rig can execute direct rotary drilling with casings and casing oscillator. The drilling rig comes in the weigth range of 75 tons. The self erecting drilling rig is available as pull-down cylinder type model and also as thd system.
Self Erecting Drilling Rig - Indian Products Directory