Usage: For coiling the following filament: the first procedure of coiling filament of 220V 25 100W coiled-coil incandescent lamp The direction of coiling is right. It can be changed to left if required. Technical details: Tungsten wire diameter: 0.015mm 0.05mm Mandrel diameter: 0.035 0.12mm Spindle speed: 30000 33000rpm Thread pitch: 0.03 0.08mm Motor: fine-induction motor: 250W,1400rpm Traverse Motor: synchronous motor 1/2 rpm External dimensions(L*W*H): 600mm*450mm*1350mm Weight: 300kg