Bucking units, also referred to as makeup and breakout machines or torque machines, are professional oilfield equipment for high-torque threaded connection processing in the oil and gas industry. Our high-performance bucking units support precise makeup, stable breakout and connection integrity testing for casing, tubing, drill pipes and downhole tool joints. We provide three main types: wedge roller bucking units, fully rotational bucking units and planetary clamping bucking units. Widely used in OCTG production lines, they deliver high speed, large output and reliable performance for mass tubular processing.