The core roller has a dual-station function and is locked mechanically or hydraulically.
For workpieces with profiled inner bores, one-heat ring rolling forming can be completed. The station change is carried out automatically, without the need to stop the machine for adjustment.
The main roll assembly can be lifted and lowered axially by a hydraulic cylinder, providing a dual-station rolling function. For irregularly shaped parts, simultaneous radial and axial rolling and hole expansion can be performed first, followed by outer diameter shaping after achieving the specified rolling expansion ratio.
For irregularly shaped parts, quenching and rolling can be performed in one go, and the station change can be completed automatically without stopping the machine for adjustment.
The dual-station functions of the mandrel and main roll work in coordination, allowing flexible adjustment of the mandrel length according to the workpiece height, significantly extending the service life of the mandrel.
