This machine tool is an automatically controlled certical CNC lathe developed on teh basis of collectiong successful experience of developing vertical CNC lathe for several decades, and combining world advanced technology. It adopts CAD and modular design method. It can meet the demands of machining medium-sized disc parts of automobile trade and other trades. It features high efficiency, high precision, and setting up once, fulfilling all turning process. it can machine various disc or sleeve parts with multi-steps and inner hole such as automobile brake plate, brake hub, fly wheel, gear, flange ect. Ball screw of X/Z axis adopts precision angle contact ball bearing and pre-extruding structure. So it has good rigidity, high accuracy and low heat distortion. Guideway pair of X/Z-axis adopts linear sliding bearing, increase its wear-reslstance degree, reduces its rub coefficient, increase rapid speed and accuracy holding. The tool turret adopts 8 positions electric indexing, clamping adopts end tooth plate opsitioning mechanism. The positioning tooth plate is made by secial technology and advanced device, also made by user’s demand. Intexing time 0.7".