Accurate detection, inspection, and measurement of food is integral to safety and quality – and ultimately to your brand’s reputation. We apply technologies to improve detection and inspection processes in food manufacturing to achieve heightened sensitivity, better reliability and accuracy, and operational efficiencies with a focus on helping you continually improve business performance while protecting your brand.
Metal detectors used in the food processing industry can find small particles of ferrous, non-ferrous, and stainless steel by passing the food product through a detector containing coils wound on a non-metallic frame and connected to a high-frequency radio transmitter. When a particle of metal passes through the coils, the high frequency field is disturbed under one coil, changing the voltage by a few microvolts.
To improve sensitivity and enable the detection of many metal types and smaller sizes, we offer multiscan technology. Metal detectors with multiscan technology utilize up to five completely adjustable frequencies to find metal types and sizes previously undetectable. Using a true broad-spectrum approach reduces the probability of an escape by many orders of magnitude. This technology is analogous to having up to five metal detectors sequentially in a production line.
X-ray scanning offers the food processing industry excellent versatility and functionality in food inspection. X-ray inspection systems can detect a wide variety of metallic and non-metallic contaminants, but also deliver additional quality control capabilities, including the detection of missing product pieces and components, under- and over-fills, and other quality problems.
Scanning systems using X-ray technology pass high energy, short wavelength light waves through the entire process stream. As an X-ray penetrates the materials, it loses energy depending on the density of the materials it passes through. Detectors capture the changes in the X-ray's energy and convert these signals into a grayscale image showing variations in material density. Analysis of this image can detect contaminants, inconsistencies within the product itself, packaging problems, and more.
X-ray inspection systems in the food industry do not use radioactive materials to generate X-rays, instead they use high voltage X-ray tubes to generate power. When the tube is turned off, no X-ray energy is emitted.
Weighing, counting, analysis, and process control technologies are used in checkweighing systems. A checkweigher weighs and counts products in motion and rejects products that do not meet pre-determined specifications. As a package moves onto the checkweigher infeed, it is weighed using a weigh cell in the weigh table. The package then moves onto the outfeed of the checkweigher to be accepted or rejected according to the checkweigher settings. If a problem is indicated, a product is rejected and removed from the conveyor via an air blast, bopper, or pusher. The rejected products can also be diverted or dropped into a separate area for further inspection.
Advances in these systems deliver reliable accuracy in weighing variable package sizes, even those that are large and heavy, without stopping or recalibrating the checkweigher conveyor. Thermo Scientific food weighing equipment accommodates many types of conveyor systems and can be customized to your specifications for maximized efficiency and consistent product throughput, even in rugged industrial environments. From raw or frozen products, bags, cases or barrels to mailers, totes and cases, our high-rate checkweighers will keep your line moving toward maximum productivity at all times.