Two WC67YA/VC67K series in same specification or different specification are choosen as main machine with double motor linckage synchro-device, which may work together to process overlong workpiece or operate separately to increase production efficiency. Deflection compensationdevice is fitted too. Mechanic and fluid servos with mechanic slider are ultized in synchronous device. The stroke of upper beam and the position of rear stopper are regulated quickly by mechine and micro-regulated by hand with electronic display o CNC controllers.
