C61125/61160/61180/61200 heavy machine tool adopts rectangular guide rail, good stability, good rigidity, spindle adopts precision rolling bearing combination, three support structure. Turning the cross-section, outer circle, inner hole and metric, imperial, modular, and radial joints of various parts. This machine tool has high power and strong rigidity, and can use cemented carbide tools for thread cutting to process various ferrous and non-ferrous metals.