Appliance of the sorter Scans products in bulk Detects (residual) pits, hollow hearts, etc. Detects metal, glass, plastic, stones, rubber, etc. Low false reject with high precision air valves Low power X-Ray Available widths : 320 mm (12.6''), 420 mm (16.5''), 570 mm (22.4''), etc. Working principle The product passes on a horizontal conveyor belt between an industrial x-ray source and an x-ray detector. X-rays are absorbed by the product and by the foreign bodies. The absorption rate is higher for denser or thicker objects. The detector measures the X-ray intensity after absorption by the product, generating lines of grey levels between 0 (no X-rays detected) and a maximum value (maximum of x-rays detected). Together, these lines form 2D images of the product, which are then analysed by an image processing system. This system can be adapted to products with specific features. Foreign bodies, such as metals, stones, glass, ceramics, hard plastics, rubber and pits or shape deviations, are detected and removed from the stream of good product by means of a precise, yet powerful burst of air from one of the high speed air valves in the rejection zone. The Rock™ Bulk not only offers the possibilities of a classic metal detector, but goes far beyond these. The Rock™ Bulk uses low power and the imaging system has a very high resolution.
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