The STC series is a pipe threading lathe that combines economy, practicality, and professionalism, utilizing the FANUC system. Primarily designed for pipe threading machining, it can efficiently cut metric and British system cylindrical/conical threads. Additionally, this versatile machine tool is capable of handling various lathe operations, including work on shafts and disc components with diverse shapes and surfaces such as arc conical surfaces and ordinary thread internal and external cylindrical surfaces. Ideal for applications in the petroleum, metallurgical, chemical, and hydropower/geology sectors, it excels at machining drill pipes, drill collars, casing pipes, and petroleum casing pipes. Particularly well-suited for casing pipe machining in the petroleum industry, the machine tool achieves a normal machining accuracy of IT6-IT7, with a workpiece surface roughness reaching Ra1.3um. The STC series stands as a reliable and practical choice for large-scale machining of petroleum pipe threads.