... demands of small-and medium -sized ente JJBC series mechanical semi-automatic straightening machine Main Characteristics For shaft, gear, clutch, ... varieties of workpieces to be straightened contain: semi-axles, gear shafts, smooth axis, and rotors of electric tools, motor rotors ... and improves the efficiency.l Clamping of parts adopts single-ended cylinder clamping (or hand lever locking), the ...