Top Drive Rotary Drill Rig Top Drive Device – 3D Model SolidWorks
Top drive technology is one of the major changes in rotary drilling rigs since their introduction (hydraulic disc brakes, hydraulic drilling pumps, AC variable frequency drives, etc.). Since the top drive system (TDS, top drive for short) developed by Varco in the United States was put into use in December 1981, top drive has gradually been adopted by the oil drilling industry in various countries around the world.
Specification: Top Drive Rotary Drill Rig Top Drive Device – 3D Model SolidWorks
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