Hydraulic Drill Pipe Power Tong ZQ Series 

Modern drill pipe is made from the welding of at least three separate pieces: box tool joint, pin tool joint, and the tube. The green tubes are received by the drill pipe manufacturer from the steel mill. The ends of the tubes are then upset to increase the cross-sectional area of the ends. The tube end may be externally upset (EU), internally upset (IU), or internally and externally upset (IEU). Standard max upset dimensions are specified in API 5DP, but the exact dimensions of the upset are proprietary to the manufacturer. After upsetting, the tube then goes through a heat treating process. Drill pipe steel is commonly quenched and tempered to achieve high yield strengths (135 ksi is a common tube yield strength). Hydraulic Drill Pipe Tong   ZQ drill pipe power tong is ideal tool for oil & gas drilling, widely applied for makeup and breakout in offshore and onshore drilling operations and workover operations. Open head design of the ZQ series allows the ton…