High speed semi-automatic winding machine to suit with winding HV coils up to 315 KVA. Servo-driven spindle synchronized with a Servo-driven traverse system enables to have accurate turn-by-turn winding. Pneumatically loaded dead center on a pneumatically loaded swing frame enables for easy job removal. Live center duly supported on suitable bearings for withstanding higher operating speeds. The machine has easy to operate rectangular air expandable shaft to have controlled winding dimensions.