1.Product length:3-55~50-300 2.Dia.:2-5~16-32 3.Slider stroke:80-380 4.Productivity(pc/smin):36-100 5.Motor power:2.2-55 This cold former machine produce various kinds of ball peen, semi-ball peens, counter-sinks, interior hexagon and other bolts.The light disk material and the vertical bar material are adopted our machine tool to produce various kinds of ball peens, semi-ball peens, counter- ...