The CNC lathe with increased rotary diameter has the characteristics of high precision, high power, and high rigidity. Its main components and structure have been optimized and designed, making it an important equipment for machining shafts, disks, sleeves, special surfaces, and screw workpieces. $r $n adopts variable frequency stepless speed regulation (the headstock adopts handleless or 1-speed handle variable speed), with high power and high speed. The structural layout is reasonable, and the machining accuracy can reach 6 levels. The roundness error is not greater than 0.01mm, and the surface roughness is not greater than Ra2.5um. It is suitable for precision machining in medium and small batch machining workshops. CNC precision CNC lathe