Rectangular Aperture small tunnel size high precision food grade metal detector / food metal detection

Rectangular Aperture small tunnel size high precision food grade metal detector / food metal detection

Type: Rectangular Aperture
Sample Types: Packaged Goods
Construction Material: Stainless Steel
Description: Our stand-alone-solutions with their own sub frames and independent drive system are ideal and you profit from the universal installation options within your production process and the almost endless range of passage sizes. Different types of conveyors and roller diameters are available.

Operation of the metal detector is carried out with menu guidance and via the large touch display. Application-specific ejection systems round off our wide variety of stand-alone systems.

How do metal detection systems work?

According to Quality Assurance & Food Safety Magazine, all general purpose nonferrous metal detectors work in the same way:

Three coils are wound exactly parallel on a non-metallic frame.
The center coil is connected to a high-frequency radio transmitter.
Two transmission-receiving coils sit on either side of the center coil.
Because the two outer coils are identical and the exact same distance from the center, they receive the same signal and produce an identical, balanced output voltage.
When a particle of metal passes through the system:

The high-frequency field is disturbed beneath one coil, changing the voltage and disrupting the balance.
The output fluxes from zero, producing a signal alerting the system to the presence of metal.
Depending on the specifics of the system, a rejection mechanism is generally activated, with the ideal result of removal of 100 percent of the metal and a minimum amount of salable product.

Why should a packaging operation invest in metal detection?

Protecting your brand in the marketplace is one of the most important functions a food manufacturer performs. But all the investment to establish a reputation for product quality could be lost in the event of

one safety recall. Developing and maintaining an effective, verifiable inspection program is no longer an option for processors. Metal detection is an effective and relatively inexpensive method of protecting your

customers and your brand. While price, delivery and other commercial considerations are important, technical performance must be the primary factor when evaluating a metal detector to trust with your

brand reputation.

How sensitive should a metal detection system be?

Metal detection sensitivity needs often vary according to the operation. For example, a metal detector's primary function might be to protect a key piece of equipment, such as a sheeter or slicer. The goal would be to eliminate metal that is large enough to damage the equipment.

In another part of the line, a different level of sensitivity would be required to inspect a bulk flow of product. And because final package inspection should be the most demanding, even higher sensitivity would be needed to protect your product before it reaches the marketplace.

Your plant's quality control group should have specific sensitivity targets for ferrous, non-ferrous, and stainless steel (type 316) contaminants for each inspection operation. These targets should be communicated to the metal detector manufacturer so that they can select the right equipment for each application. Be sure to set realistic and achievable goals.