Automatic shaft change Pre-stretch film slitter rewinder is upgraded model with the latest pre-stretch rewinding technology from USA. It is for automatic high speed changing the shaft,it is able to be pre-stretch,and standard stretch film slitter&rewinder,it is built by two rewind station by four shaft for high speed of change the core by simple operation with frequency inverter changer for motor control. Machine can work as multi-purpose for pre-stretching film slitting mode,pre stretch rewinding mode. To switch off the pre-stretch control system,machine roles as a standard stretch film slitting mode,a standard stretch film rewinding mode as well. In total,the machine conclude 4 different function in to......