Metal Detection

Metal Tracking on Variable Speed Belt Conveyors

06.08.2009 | Editor: Marcel Dröttboom

SpyMet, is an accessory to a metal detector system

Bedwas, United Kingdom – SpyMet, the latest new product developed Eriez Magnetics Europe, is an accessory to a metal detector system and is used to track and locate tramp metal on a conveyor belt. It can be operated in two different modes, manual or automatic.

According to Eriez, its greatest advantage over conventional rejection/marking devices, which specifically rely on the speed of the conveyor belt to be constant, is that it can track the multiple positions and quantities of metal contaminants on a variable speed conveyor belt.

SpyMet can be operated in conjunction with any metal detector and can be used to operate a third party’s device such as a reject arm, ink jet marker or air blast system. The accuracy of the system is plus or minus half the metal detector sensor depth and can track up to twenty separate metal pieces simultaneously.

The manual mode is useful for an application where the belt is not able to stop immediately (due to a large volume or high speed) after tramp metal has been detected. The conveyor is divided into 1 m wide zones, downstream from the metal detector sensor. Once the belt has stopped, SpyMet will indicate the zone number and the number of metal contaminates within the zone. This enables downtime to be reduced thus improving productivity and preventing the operator from missing any metal. The automatic mode can be used for applications where the conveyor belt does not stop when tramp metal is detected.

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