There are advantages to upgrading parts or all of an existing system.
First, we can usually use most, if not all, of the control systems. They are electrical components, PLC computers, frequency drives and control panel. These components don’t wear out like rollers, belts, chains, motors and gear reducers do. The control systems can continue to deliver far into the future.
Second, we get an opportunity to tweak the system, so we eliminate weaknesses, improve performance. Newer technologies will improve efficiency, reduce maintenance costs and make the system much easier to use while earning a good “Return on Investment”, at a substantially lower cost that starting over.