Hardening and Tempering Line Receives Upgrade
The Ohio-based Engineering Division of Conrad Kacsik Instrument Systems completed a full system upgrade of an automated hardening and tempering line for Nelson Fastening Systems, also located in Ohio. The project involved the removal of the existing control system, VFD drives, limits, and control wiring for Nelson, and included the installation of a new system that features safety controls.
A Honeywell HC900 with a 15-inch operator interface terminal integrated with a computer running Specview HMI software controls a 2-zone hardening furnace, generator, quench tank, water cooling tank, washer, 2-zone tempering furnace, and a blackening unit. The equipment was linked with six conveyors and wired into the four control panels completed by Kacsik’s engineering team.
The old conveyor system had VFD drives that did not communicate with a PLC. The new system was programmed with safety features: in the event of a chain break or a conveyor jam, the system will alarm and automatically shut other conveyors off.
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