The EMI flat bed, metal detection system is an excellent choice when tramp metal (both ferrous and non-ferrous) is free to fall either onto or close to the conveyor belt. Sensitivity is greatest near the surface of the belt, and gradually decreases as the distance from the belt surface increases. Cost is considerably less than an aperture style system.

The system consists of three parts, a compact coil design flat bed detector which is installed directly beneath the conveyor belt, and a NEMA 4 enclosure which houses simple to use, single board electronic controls. Sensitivity of the system can be easily adjusted to meet the needs of varying applications.

When metal is detected, the unit will stop the conveyor and signal an operator to remove the metal and reset the system. If automatic quality control is desired, the system can be combined with a parts diverter or reject chute to remove the suspect material.