Suitable for stator wedge expansion after final motor forming — a dedicated machine designed to push the slot wedge paper firmly into the bottom of the stator slot. It adopts PLC program control with a touchscreen display. After the workpiece is loaded, the machine automatically moves downward and performs expansion upon reaching the designated position. The cylinder provides the main driving force to expand the slot wedge piece. Equipped with a mechanical limit function, dual-button start, and photoelectric safety protection switch, it ensures safe and reliable operation with simple handling.