Metal Detection and Separation

The Crizaf flat bed metal detector is an excellent choice for detecting metal (both ferrous and non-ferrous) that rides either directly on, or very close to the conveyor belt. It is an excellent choice for detecting metal in scrap being fed into a granulator, or for almost any type of conveying or box-packing application in which metal, or parts with imbedded metal need to be detected. In addition to loose metal, it will also detect metal embedded in plastic, as long as the parts profile is low enough to consistently allow any embedded metal to ride close to or on the belt surface.

While the actual detection distance above the belt will vary according to the type of metal being detected and the size of the part, the accuracy of the system generally decreases as the distance from the belt increases. For this reason, it may not be the best choice for types of applications in which metal parts may be suspended above the belt.

The Crizaf aperture-style metal detector is a closed-loop system that wraps completely around the conveyor belt. It will detect any ferrous or non-ferrous metal that passes through the loop—both on and above the belt surface. In addition to loose metal, it will also detect metal that is imbedded within a plastic part. Depending upon the height of the aperture opening and the type of metal, this type of system is capable of detecting even minute metal contamination, making it the number one choice when extremely accurate metal detection is essential.

An aperture-style metal detector is an effective means of protecting almost any type of machinery that may be damaged by metal parts or pieces, including granulators, mills, shears or crushers. It can also be used with almost any type of conveying or box-packing application that may require metal, or parts with metal to be detected beforebeing moved to the next process. Placed prior to the feeding unit of an injection molding machine, it can protect both the injection molding machine and the mold from damage due to metal contamination found in regrind or virgin resins.