APEX Raw Cashew Nut Processing Grading Machine By NIR InGaAs

APEX Nut Grading Machine Features

The Model N+ vertical nut color sorter is an enhanced upgraded model iterated from the standard Model N nut sorting machine. Equipped with pioneering dual-view infrared 360° full-perimeter scanning technology, it completely eliminates inherent detection blind zones existing in single-view detection schemes. The overall sorting precision and operational stability are comprehensively optimized for irregular-shaped nut raw materials, making it perfectly matched with medium-to-large industrial mass nut processing production lines.

360° Omnidirectional Detection with Zero Blind Spots

The upgraded dual-view infrared sensing system delivers full peripheral coverage for irregular nuts. It fundamentally fixes the missed inspection issue triggered by detection dead angles and random flipping status of nuts during free fall, ensuring every particle gets complete multi-angle spectral scanning.

Ultra-precise Screening for Concealed Subtle Defects

The upgraded optical system precisely captures hard-to-screen flaws such as hidden rancid kernels, residual broken shell fragments, worm-damaged particles and internal tissue deterioration. It prominently cuts the false rejection rate and miss detection rate during large-batch continuous nut processing.

Robust High-duty Continuous Industrial Operation

Structures and optical assemblies are optimized oriented toward intensive industrial mass production scenarios. The equipment maintains steady long-hour high-load running performance, lowering extra manual reinspection labor costs, lifting overall production capacity and finished nut qualification rate, and bringing tangible economic benefits to nut manufacturing enterprises.

As a high-reliability premium sorting solution for medium and large nut deep-processing manufacturers, Model N+ achieves high-efficiency and high-purity refined purification treatment for bulk industrial-grade nut raw materials.

Working Principle-How does it work?

Working Principle of Model N Nut Special Color Sorting System

Step-by-Step Sorting Workflow:

1. Raw mixed nuts with hidden deteriorated kernels, broken shell fragments and worm-eaten particles are loaded into the top feeding hopper.
2. The matched feeding vibrator conveys nut materials evenly along the streamlined chute to form a stable single-particle free-falling state during downward movement.
3. The dual-view infrared group plus high-definition CCD cameras perform 360° omnidirectional scanning with no detection blind spots under matched stable light sources, collecting all-round surface appearance data and internal kernel spectral information of irregular nut particles.
4. The dedicated high-speed dual-signal processor analyzes the collected multi-angle image and infrared spectrum data in real time, and screens out subtle hidden defects that single-view detection cannot identify according to the preset nut quality standards.
5. Once defective nuts are confirmed, the processor instantly transmits control signals to the nozzle assembly. Compressed air blows unqualified nuts into the rejected product hopper accurately.
6. High-quality intact nuts fall into the accepted product hopper by natural gravity, finishing the high-precision blind-spot-free automatic sorting process for industrial bulk nuts.

Parameters of Nut Grading Machine

Actual Sorting Performance Test

Applicable Sorting Materials

The upgraded Model N+ nut color sorter is equipped with dual-view 360° full-angle infrared scanning & CCD dual inspection system, optimized for irregular nut outlines and high-load mass industrial production environments. It delivers stable high-precision sorting for various commercial nuts and oil seeds, effectively capturing surface blemishes and internal hidden defects that single-angle detection cannot identify.

Applicable mainstream nut & oil seed varieties：
1. Hard-shell tree nuts: Walnuts, almonds, pistachios, pecans, macadamia nuts, pine nuts, cashews
2. Oil-bearing roasted seeds: Sunflower seeds, pumpkin seeds, watermelon seeds
3. Processing forms: In-shell raw nuts, peeled nut kernels, roasted semi-finished nut products

Targeted sorting defects supported by N+：
1. CCD visual inspection: Remove burnt husks, stained surfaces, discolored kernels, foreign impurities and damaged fragments
2. 360° dual-view infrared scanning: Screen out hollow kernels, internal rancidity, worm-eaten flesh, deteriorated pulp hidden inside intact shells without detection dead zones

Developed for medium and large-scale nut deep-processing assembly lines, Model N+ realizes full-dimensional quality control of raw nut materials, lowering manual recheck costs and improving the finished product yield for mass continuous nut production.