Pecan Sorting with


Optical Sorting for the Pecan Industry

WECO Sorting is proud to introduce the PecanTek optical color sorter. Devolved with the State-of-the-Art ChromaxHD Camera and IR Technology that includes Free-Space No Background Optics. The last electronic sorter you will ever need!
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Better Quality and Higher Throughput

WECO's Pecan Sorter uses the latest ChromaxHD optical sorting technology and advanced algorithms to efficiently remove under- and damaged nuts and foreign material. This offers vastly improved quality with increased throughput at a fraction of the price of alternative methods. Our system is also designed to be easy to understand and operate, employing intuitive controls and a touch-screen interface refined over the last thirty years.

Automation through the WECO's Pecan Sorter can provide tremendous gains in productivity and labor efficiency.

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The ChromaxHD Advantage



Light Emitting Diodes (LEDs) can be found in a wide variety of products today: cars, computer screens, televisions, traffic signals, home and commercial lighting, and even rifle scopes to name just a few. LED advances over the past decade have been driven by the need for more efficient and longer lasting light sources for all types of illumination tasks. LEDs today can output many times the light LEDs could output just a few years ago. The Chromax LED illuminator uses the latest state-of-the-art LEDs for the highest output, reliability and efficiency possible.

LED Illuminator

All photographers know that the key to a good photograph is proper lighting to achieve the desired effect. The same is true for optical sorting. The image seen by the sorting camera is very dependent on the nature of the illumination. Unlike laser based systems, the ChromaxHD LED sorting optics generate horizontally diffuse illumination. This minimizes spectral reflections from shiny or wet objects, and the resultant color errors.


The Chromax LED illuminator has no spinning mirrors. In fact, there are no moving parts at all. All alignment and calibration is done at the factory and due to the rigidity of the optic modules, they are unaffected by rough treatment during shipping and operation.

Controlled Depth of Field

While being highly diffuse horizontally, the special optics collimates the light vertically. Not only is this a very efficient use of the light generated by the LEDs, it also allows for a controlled depth of field and excellent color calibration without requiring a background surface/roller that must be kept very clean. WECO Free-Space Optics eliminate the need for controlled backgrounds and the associated maintenance.

Full Color Spectrum

ChromaxHD sorters are full spectrum sorters operating over the entire visible and infra-red spectrum. Multiple color spaces are used to make the sorters extremely flexible tools for performing a

wide variety of sorting tasks. Modeled after human color perception, the sorter is very intuitive to setup and fine tune in operation.