Select the best technology for your application
Modern metal detector systems can identify all metals in food, non-food and drugs, including ferrous metals (chromium, steel, etc.), non-ferrous metals (copper, aluminum, etc.), and magnetic and non-magnetic stainless steels. The X-ray foreign body detector system can also detect metal and nonmetal pollutants, such as glass, ore, calcified bone, high-density plastic and rubber compounds. These detection systems can be installed at CCP to detect foreign raw materials before processing. These systems can also be installed at the middle or end point of the production line or packaging line.
Although metal detectors and X-ray foreign body detectors can provide various functions 9, their pollution detection methods are not foolproof. There are usually some areas of overlap between the two technologies, and careful consideration must be given to which is best suited to the application and budget at hand. For example, metal detection is considered the most appropriate technology for aluminum contamination in non-metallic packaging. Aluminum is a light metal and a good electrical conductor. Because its ray absorptivity is lower than that of other metals (such as iron and stainless steel), it will lead to a decrease in sensitivity in the X-ray foreign matter detector system. In other words, the size of aluminum contamination needs to be twice that of metal and stainless steel in order to achieve equivalent detection results. On the other hand, due to the excellent conductivity of aluminum, metal detector technology can usually be used to detect smaller sizes, so the latter is usually a better solution.
However, when testing the metal contamination in aluminum foil packaging, the choice is inclined to the other side. Metal detectors are difficult to find contaminants in aluminum foil packaging. However, due to the working mode of the X-ray system, the influence of aluminum packaging materials on the detection level can be ignored. The X-ray foreign matter detector can directly see through the low-density foil paper to better detect the metal contaminants in the package, which will provide a better solution in this case. The simplest way to choose metal detector or X-ray foreign body detector is to start from application. The first step is to carry out hazard analysis and critical control point (HACCP) audit or hazard analysis and risk-based preventive control (HARPC) audit. The detailed differences between HACCP and HARPC10 will be described separately, but basically, HARPC also includes aspects such as potential terrorist acts and/or vandalism and food fraud.
Such audits will help understand the requirements of 600mA DR x-ray device price related to compliance with GFSI and/or major retail groups in gfsi. HACCP audit will determine the pollution risks introduced into the manufacturing process and the types of pollutants that may be encountered. Critical Control Points (CCP) should be established to reduce risks, and product testing equipment should be installed at these points to reduce pollution risks to an acceptable level. HARPC audits also cover pollution in the manufacturing process, but also consider other security, such as visitor access and control. Suppliers and recall procedures are also more formal. HARPC system requires food factories to determine and implement prevention and control measures based on science or risks, rather than critical control points (CCP).
Whether HACCP or HARPC methods are used, appropriate technologies should be selected according to the pollution risks during production, which are the same. If the audit determines that metal is the only pollutant that may be found, then metal detectors may be the best solution. Similarly, if it is determined that other pollutants may be encountered, such as glass, stone or high-density plastic, the UC Arm digital x-ray system factory is more suitable. In either case, product testing is recommended to establish the most appropriate technology. In many cases, there is only one suitable solution: metal detector or X-ray foreign body detector system. However, it may be necessary to install metal detectors and X-ray foreign matter detector systems on different CCP in the same food environment and the same production line at the same time.