When sourcing a truck wheel machine (such as a CNC wheel lathe or wheel balancer), you must prioritize processing diameter range (typically 14–26 inches for heavy trucks) and spindle accuracy. For CNC repair lathes, ensure the machine features a high-precision ruby probe for surface detection and a PC-based control system that supports G-code optimization. For tire changers, verify the maximum wheel weight capacity (often up to 500kg-1500kg) and the presence of a hydraulic lifting system to ensure operator safety and efficiency.