... 4F,7K,8A, Oil Rig Type and Basic Parameters of SY/T5609-1999 1. Motorized Rig: To realize the intelligent control ... , drill pump, and drum, all adopt independent electric driving, infinite speed regulation, (for the drum, the compound driving is also available ... realized by energy consumption.2. Combination Rig: it takes the diesel engine as driving power source, and the driving chain box in ...