Enhanced vision capability from Key Technology


Key-TechnologyDesigned to improve product quality and food safety, Key Technology’s Tegra in-air colour sorter has enhanced vision capability which increases detection and removal of foreign material (FM) and defects, particularly small defect removal. Featuring twice the number of cameras as other Tegra sorters with the same width, the new Tegra 7755E achieves unprecedented line-of-sight for better all-around viewing with virtually no hidden areas.

‘We’ve designed a half-wide Tegra sorter with four cameras; each scanning the full width of the belt so the entire product zone is viewed from all sides,’ notes Steve Johnson, director of marketing. ‘Compared to standard Tegra sorters, this enhanced sorter removes approximately 20 per cent more defects that are 1-2mm in size, depending on the application.’

The technology is ideal for a wide range of sliced, diced, and whole fruits and vegetables as well as many potato products, snack foods, candies and nuts. It sorts up from 7.5-15 metric tonnes/per hour. Key can equip Tegra with RBG, Vis/IR (visible infrared) and UV colour cameras, and can programme the sorter to operate at a scan rate of 4 000-8 000 to meet the exact needs of each application.

Featuring a smooth unibody design with no horizontal surfaces, Tegra promotes sanitation. Reduced scatter, which results from the predictable in-air product trajectory, and a series of air management devices, which help guide product flow, also improve sanitation. Automated clean-in-place systems round out the sanitation package.

Key Technology, an ISO-9001 certified company, is a manufacturer of process automation systems, integrated electro-optical inspection and sorting systems, and processing systems.