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Anthony Rowcliffe and Son, a supplier of cheeses and speciality chilled foods, has selected Loma Systems to install its IQ3 metal detector for a new range of 11 Artisan cheeses for Marks and Spencer.

The company operates out of two purpose-built BRC-accredited sites at Paddock Wood in Kent, supplying more than 1,000 different lines, including its own branded Clemency Hall product.

The sites operate five-day weeks with a same-day delivery policy to a variety of supermarkets.

It sells to delis, farmshops, butchers and the premium multiples.

All Anthony Rowcliffe cheeses are individually hand-cut with wire, so it was vital that Loma provided a machine that was sensitive enough to identify small metal contaminants.

As the company despatches and inspects products in trays, Loma specified a carriage track reject conveyor, designed to push reject trays down a separate conveyor system to ensure trays with contaminated product are kept separate from trays that have been inspected and found to be safe.

Anthony Rowcliffe complies with the industry-standard radio-frequency-identification (RFID) tracking system to ensure products are tracked throughout the delivery process to guarantee they arrive at specific locations through their identifiable metal tags.

These metal RFID tags can cause problems when going through other brands of metal detector, as the tags give off a signal; it could be misinterpreted that the products have metal contaminants in and could therefore cause a false reject.

Loma’s variable-frequency IQ3 metal detector provided the best solution; variable frequency means the machine can learn the signal given off by the metal tags and then eliminate that signal to only find contaminates that are in the products.

The machine is able to automatically calibrate to the variety of cheeses on six cutting lines.

Every cheese emits a different product reading; they vary in moisture levels, salt content, density and size and, as a result, frequency levels vary significantly.

With its product memory offering space for 200 different products and frequency levels of between 31kHz and 882kHz, the IQ3 has provided a reliable solution for Anthony Rowcliffe.

The automatic product learn function ensures maximum sensitivity and accuracy without constant operator adjustment, resulting in one machine handling all six lines, as opposed to buying multiple machines to cope with various differing products.

The IQ3 comes standard with the IP69K search-head environmental protection and is said to be very reliable.

The machine is also claimed to be simple to use, helping operators to achieve maximum functionality.

Anthony Rowcliffe has also taken advantage of Loma’s Platinum Service Contract to ensure sustained production levels and support.

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