... .The backup clamp adopts pneumatic clamping. Structure and featuresThis bucking machine adoptshyperboloid roller-climbing clamping mode.Two slope plates installeddislocation form ... split-body structure and isinsisted of driving clamp, backup clamp, machine body, torque testing device, hydraulicpower supply, electric control system and ... (KW)30air pressure(Mpa)0.4-0.8 Casing clamps machine