this machine can used for precious outside thread, samll model worm wheel, ... centre distance max260mm min150mmkeyway width12.7mm spindle diameter φ75spindle r.p.m16,22,32,45,63,90 r/minspindle max angle ... /6KWhydraulic motor power3.7KWheightxwidth xheight1631mm×1630mm×1700mm weight2700kg Thread Rolling machine