Tegra 7755E in-air colour sorter with four cameras

The Tegra 7755E in-air colour sorter has twice the number of cameras as other Tegra sorters with the same width, increasing detection and removal of foreign material (FM) and defects. Distributors Key Technology claim the sorter removes about 20% more defects in the 1 to 2 mm size range, depending on application.

The sorter has four cameras, each scanning the full width of the belt so the product zone is viewed from four sides. The metal-mesh catenary C-Belt allows the Tegra to view the product, top and bottom, while in-air to remove FM and defects.

The sorter is suitable for a range of sliced, diced and whole fruits and vegetables, as well as potato products, snack foods, candies and nuts. Key can equip the Tegra with RBG, Vis/IR and UV colour cameras and can program the sorter to operate at a scan rate of 4000 or 8000.

Users with installed half-wide Tegra sorters can upgrade to the 7755E in the field.

Tegra is equipped with KeyWare Application Software. Defects and FM are categorised on the user interface in terms common to each product. KeyWare is claimed to reduce the skill level required to operate at minimum performance.

The sorter has a smooth unibody design and no horizontal surfaces, which can aid 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 also aid hygiene practices.