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Optical sorting solution safeguards food safety

20 May 2014

Responding to the increasingly complex defect challenges faced by food processors, the Bühler Group has fortified its optical sorting portfolio for dry commodities - nuts, seeds, pulses, grain, coffee and plastics. 

The SORTEX A and SORTEX B ranges are said to offer processors greater levels of yield, performance and product superiority, in their efforts to safeguard food safety standards.

Although processors may target their output to a range of customer specifications, all must remove particular food safety hazards from their input, and all demand consistency in their end-product. This requires consistent and accurate sorting, along with the fastest processing speeds and low cost of ownership. Bühler has therefore developed a flexible optical sorting product portfolio, with a range of customisable product options allowing processors to meet their exact sorting requirements.

Bühler global product manage,r Faisal Baig, said: "The innovations included in this portfolio mean Bühler can now resolve more of the most demanding sorting and food safety challenges facing the food industry, and provide efficient, impressively accurate, high yield sorting options to a wider range of customers whilst delivering clean and safe food."

The SORTEX A is suited to use in difficult dry commodity food sorting applications. Variants of this range include the standard SORTEX A, DualVision, ColorVision and MultiVision. Each of these variants is capable of detecting and removing the subtlest of defects - in colour, shape or size - that other conventional sorters cannot.  In seed processing, for example, US-based Red River Commodities has raised the output quality of its sunflower seeds to 99.99% purity, while simultaneously increasing yield by 50%, following the installation of a SORTEX A ColorVision InGaAs machine.

Fitted with an enhanced inspection system that can detect defects not possible with RGB technologies alone, Red River found Bühler’s InGaAs and PROfile (shape) technology to be the most effective solution for removing challenging foreign materials, such as sticks, stems, stones, glass and importantly, sclerotia – a compact mass of fungal growth.

The SORTEX B range is designed to maximise yield and productivity in mainstream sorting applications. The SORTEX B is designed for day to day bulk sorting. It provides high reject accuracy and process efficiency ensuring a high yield of consistent quality end-product. The SORTEX B variants include the standard SORTEX B,  DualVision and ColorVision and is available in various module sizes, offering processors a choice of powerful solutions for their specific capcity requirements. 

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