Forced clamping of both ends of the workpiece, and then expanding the tube, the length of the workpiece does not change, no shrinkage and deformation, saving 3 to 5% of raw materials.

The rotary table is used to change the position, and the two-stage flaring and tube expansion are completed on one machine at the same time.

The tube expansion height, flaring depth, and rotary table positioning are all digitally controlled by servo motors.