Project introduction: This equipment is used for the wheelset running-in test after the wheelset maintenance and assembly of Ningbo Metro Line 5 rail transit vehicles to confirm whether the assembly quality meets the specified requirements. It is the final quality control equipment necessary for batch maintenance of wheelsets. It is composed of connecting track, main engine structure, hydraulic station, electric control cabinet and other parts. The structure of the main engine is a gantry frame type, which is equipped with a wheelset lifting device, a pressurizing device, a driving device and a detection system. NCC provides comprehensive services for overall project design, automation control and equipment supply, project construction and commissioning and acceptance.