You are not using a software system that will automatically calculate coil usage and slits that will automatically send the job information to the slitter. With a software like NuEvolution, cut optimization is automatic and sends the cuts directly to the machine.

If the machine is not operating constantly for a full shift, the ROI will be much longer to justify 

While manual-knife machines are still very safe, CNC machines have operators hands off except loading coil and picking up the finished, cut blanks.

Computers don’t make mistakes. (However, if the operator enters the wrong information into the machine, a mistake is still possible!) 

If you have many jobs with only a few cuts or projects with many non-standard cuts, you reduce operator mistakes and speed up production.