... eliminate stress,high in rigidity,sturdy and durable. Hydraulic drive, guillotine type,return of knife beam is smooth and prompt by ... , positioning reliable. Setting the backgauge by motor.The display devices used to the backgauge' value and the shearing times are on ... down blades, each blade has 4 cutting edges can be used. The shear blades is supplied by first class manufacture. blades ...