Top Drive in Drilling Components, Pros & Maintenance Steps
Definition:

A top drive is an essential part of the drilling equipment. It is located on a drilling rig (Check also types of drilling rigs) hoisted on a rig mast or a derrick. The top drive is a combination of electrical and mechanical motor systems. Top drives have a variety of advantages and prove beneficial in drilling operations ranging from truck-mounted rigs to offshore drilling platforms.
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