... welding and rolling face milling & processing CNC Face Milling Machine/ Miller for box columnFeature:1. It is consisting ... of milling and cutting head, lifting upright column, worktable, machine body, mechanical feeding system, electrical controlsystem, rail protection device, ... milling cutter dia.N=80~400RPMmilling head spindle turning speedL=80MMmilling head spindle extrusion lengthV=50~600MM/MIN