Main Technical Specification No. Item Units TK6916-Parameter 1 Spindle bore diameter mm Ф160 2 Spindle taper 　 ISO 50（BT50） 3 Max. Spindle turning speed rpm 1500 4 Section dimension of ram mm 480X520 5 Spindle and ram travel total mm 2400 6 Boring spindle travel（W axis） mm 1200 7 Ram travel（Z axis） mm 1200 8 Boring head travel up/down（Y axis） mm 5000 8 Column longitudinal travel ( X axis） mm 14000 9 Ram feedrate（Z axis） mm/min 1~4000 10 Boring spindle feedrate （W axis） mm/min 1~4000 11 Column longitudinal travel speed （X axis） mm/min 1~6000 12 Boring head travel speed up/down （Y axis） mm/min 1~6000 13 X, Y axis positioning accuracy-with linear scale mm ±0.025/1000 14 Z, W positioning accuracy-with linear scale mm ±0.03/1000 15 X, Y Repetitive positioning accuracy-with linear scale mm ±0.015/1000 16 Z, W Repetitive positioning accuracy-with linear scale mm ±0.015/1000 17 Max. Torque of boring head N．m 10000 18 Boring spindle axial resisting force N 50000 19 Main motor power KW 50Kw