Unique gravity feed metal detector offered by unique equipments are designed to inspect any free flowing bulk powder or granular materials such as pharmaceuticals, plastic pellet, cereals, flour and chemicals. Any free flowing materials may be passed through the vertical drop system. The unit fits into an existing pipeline or beneath a feed hopper and the product fall by gravity. The metal free product passes straight through the mechanism and diverts the ferrous and non ferrous and stainless steel contamination from the main floor. Rectangular and larger throughput systems are available to special order, suitable for floor or suspended mounting.
The material to be examined is send through the equipment in free fall. Uncontaminated material passes unaffected by the reject device. If metal is detected by the metal detector solenoid operates a flap and diverts the contaminated material. After an adjustable period of time the "rejection duration" the flap returns to its original position.
The valve is mounted beneath the detector at the minimum distance to ensure it can fully close before contamination arrives when under maximum load. The complete mechanism has smooth flow lines and can be quickly dismantled for cleaning if required.
