XQ series of hydraulic power tongs have inner cam rolling-up clamping mechanism, with a hydraulic backup tong. It is an ideal tool for makeup or breakout of various of tubings, and small sizes of casings and drill pipes in workover operation. The tong with extra long rod is available for backup tong to grip tubing body. The power tong also can be equipped with automatic torque control system. The tongs are designed and manufactured according to SY/T5074 standard and API Spec 7K specification for drilling and well serviceing equipment Technical parameters: Applicable range main tong 60-89mm(2 3/8-3 1/2) Applicable range backup tong 60-114mm (2 3/8-4 1/2 inch) Max torque 3300N.m/2213ft.lbf Speed 30-90rpm Rated pressure 10Mpa/1450psi Max. flow 80L/min 21gpm size 25.6 16.9 21.7inch weight 158kg/348lb