Optical Sorting Machine By National Recovery Technologies Inc.

These Optical sorting machine is an advanced infrared sorting system that separates numerous selected polymers from a mixed stream. It uses proprietary technology and fast, highly sensitive algorithms to rapidly identify unique polymer a signaturesa from their infrared spectra. This advanced technology is available in two models: the SpydIR-R, which uses reflective detection, and the SpydIR-T, which utilizes transmissive detection. While other companies detect material over the belt and eject some time later, NRT offers In-Flight Sorting, which detects and ejects material in flight. In-Flight Sorting enables the use of transmissive detection, and
eliminates motion-related error and belt interference, increasing purity levels and hit rates.
The spectrometer array across the width of the belt greatly increases accuracy compared to rotating mirrors which are prone to error.

Applications
Sorts 1-7 plastics in any combination
Single sort high-purity clear and light blue PET directly from container stream
Polymers identified include PVC, PS, PETG, PLA, PC, PE, PP and other polymers in any combination
Recover clean PET product from polymer residue streams for return to main PET stream