Boyu Petro PC Series planetary clamping bucking unit is a high-performance oilfield bucking machine. It delivers precise makeup, stable breakout and connection integrity testing for casing, tubing, drill pipes and downhole tool joints. The planetary clamping mechanism provides evenly distributed clamping force, minimizing stress concentration and protecting premium threads. This design suits precision-critical connections in OCTG production lines and repair shops. This reliable bucking unit operates across multiple models (YNJX120 to YNJX400), meeting various torque requirements for casing, tubing and downhole tool assembly. It complies with API standards with non-slip clamping. Contact us for a factory quote on your required model.