The near-infrared (NIR) sensor detects the reflected light of material with wavelength in the range from 1100nm to 1900nm. Different types of plastic compounds have different chemical bond, such as C-H, N-H, and O-H. According to the materials chemical compositions, each material reflects NIR light are different and creates a unique spectrum. These spectrums will be calculated and classified for final plastic types sorting result.
The NIR sensor Features:
Unique Sorting Technology
The smart NIR sorting solution is integrated with “free fall” setup to avoid noise and contamination for better stability and accuracy.
500Hz scan rate provides real-time and accurate materials information stream of shape and classification.
Unique-designed light provides halogen lamps with low power consumption, high light intensity, smart maintenance, and low cost for maintaining.
High-Speed Valve Seat
The high-speed bullet valves are assembled in the compact nozzle bar. The milliseconds response and blowing time which brings high throughput with less air consumption.
Dual 15” touch screens with high resolution provide clear and simple operation for the conveyors and NIR sorter respectively.
Pulian adopts high standard safety components and circuit desing to protect the operator safety.