-mechanical relay control. Very rarely will the customer want to digress there control system, but they were adamant about simplicity. The problem that arose was, shortly after being... contacted for the project, the electrical panel caught on fire and prevented us from ever seeing the system run. After 1 week the customer resumed production with there recycler, complete with a new electrical control system. ...Concrete Recycling Machine Concrete Recycling Machine The Project:Replace the existing Hitachi PLC which controlled the concrete recycling process with conventional electro...