Chock Temperature Supervision Wireless System for a Tandem Cold Mill

Chocks Temperature Control is a very important issue in roll life. High temperatures in the chocks can damage the bearings and even start a fire in the mill. Traditional wired systems don't offer satisfactory results, in practical use. Using Zigbee (802.15.4) wireless technology, due to its very low power consumption, temperature sensors (up to 125ºC) suitable for a tandem cold mill environment have been developed. Complete monitoring system includes repeaters, a base receiver with TCP/IP gateway, and maintenance software. Results obtained in the tandem mill are offered.