Power: Ac110v / 220v 50 / 60 hz Main motor: Dc90 / 180v Spread: Stepping motor Pitch: 0.001-9.999mm Memory: 999 step Wire size: + 0.06 - ° 2mm R.P.M.: 1600 rpm max Spread range: 0-100mm Winding dia.: 180 mm Weight: 28 kgs Dimension: 420(w)*300(l)*400(h)mm 550(w)*630(l)*650(h)mm