Feature
With high accuracy, rigidity and strength, suitable for punching, blanking, and shallow pull extension and other processing.
JS31-160~JS31-500:  Casting body (welded steel is optional).
Double level drive
JS31-500A~JS31-1600:  With three parts: the beams, columns and the base
Closed framework is connected by four tighten bolts with eight nuts locked to be a closed framework.
Eccentric transmission and triple level drive.