API Standard Power Swivel for Drilling Rig for Oil Well Drilling As a power unit, power swivel is specially designed and manufactured for workover rig. It can connected with a stand at a time, save make-up and brake-out time 20%.In case of blocked under well or jammed during drilling, it can swiftly lift drilling tool, circulating and rotating to improve safety of well drilling and workover treatment. Hydraulic driven,3-grade speed reduced are adopted to the power swivel,
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