APEX Walnut Sorting Machine for Pistachio Macadamia Pecan Almond

Features of APEX Walnut Sorting Machine

The Model LS+ belt low-breakage nut sorter is an upgraded iteration derived from the standard LS model, integrated with premium dual-view infrared omnidirectional scanning technology. It inherits the original lossless flexible belt conveying property while thoroughly eliminating detection blind spots generated by irregularly placed nuts during sorting.

1. 360° Omnidirectional Detection with Zero Dead Zones
The dual-view infrared layout delivers full-perimeter scanning coverage for stacked, sheltered and overturned nuts. It precisely captures hidden worm-damaged kernels, slight internal deterioration and semi-hollow nut meats that are easily omitted by conventional single-view infrared configurations.

2. Elevated First-pass Product Qualification Rate
The optimized dual-channel optical system markedly cuts repetitive reprocessing work and raw material waste amid mass continuous production. It reduces extra labor expenditure for manual reinspection and lifts the overall operational efficiency of nut processing lines.

Striking a perfect balance between low-impact nut shell & kernel protection and high-precision full-angle internal inspection, Model LS+ brings tangible economic gains to medium and large-scale standardized nut manufacturing production.

Video Demo of APEX Belt Nut Color Sorter

Watch APEX AI optical sorter in real operation. This demo shows our belt-type nut sorting machine processing walnut kernels, with automatic grading and defect elimination.

Adopting dual-view infrared and CCD detection technology, the sorter can pick out moldy, shriveled and deteriorated nut kernels, as well as shell fragments and impurities. The anti-breakage belt conveyor protects nuts during sorting, cutting raw material loss and improving finished nut quality.

Our nut sorter is versatile for walnuts, pistachios, almonds, pecans, hazelnuts and pine nuts, helping nut processors boost production efficiency. Play the video to see the nut sorting performance.

Working Principle of APEX Walnut Sorting Machine

Step by step working principle

Step 1 Uniform vibration feeding & lossless belt conveying
Raw nuts are poured into the top feeding hopper. The feeding vibrator evenly arranges clustered nuts on the flexible horizontal conveyor belt. Flat laying transportation eliminates violent impact and extrusion in vertical sorting methods, greatly lowering the breakage rate of nut shells and kernels and reducing raw material loss.
Step 2 Dual-view infrared + CCD full-angle composite detection
When nuts pass through the imaging area, the light source provides stable imaging conditions. The color CCD camera captures surface defects such as discoloration, stains and mold on nut appearances. Meanwhile, the dual-view infrared system performs 360° all-round penetration scanning, thoroughly solving detection blind spots caused by stacked, overturned and irregularly placed nuts to identify hidden hollow kernels, worm-eaten parts and slight internal deterioration.
Step 3 Precision air ejection & finished material collection
After the system marks defective targets through dual optical inspection, high-speed nozzles perform instantaneous air ejection to separate unqualified nuts into the rejected product hopper. Nuts passing both surface and internal quality inspection are stably conveyed into the accepted product hopper to complete the whole standardized sorting process.

Parameters of APEX Walnut Sorting Machine

Performance Comparison

Sorting Performance for Walnuts and Various Bulk Nuts

• Graded Qualified Nut Kernels: LS+ supports fine color grading for walnut kernels into premium light kernels, high-grade ordinary kernels, light red and dark red finished products. Relying on stable flat belt lossless conveying, nuts are transported in a flat state without falling impact or extrusion damage, maintaining the intact appearance and integrity of nut kernels and lowering finished product breakage loss rate.
• Rejected Defects & Impurities Removed by Dual-View Detection: The color CCD system filters surface defects including discoloration, dark spots and mildew on nut surfaces. Meanwhile, the dual-view infrared omnidirectional scanning penetrates nut tissues to identify shriveled pulp, internal rancidity, worm damage and hollow kernels that single-view equipment is prone to miss. This sorting system thoroughly removes miscellaneous impurities such as walnut septum, shell fragments and residual husks mixed in raw nut materials, greatly lifting the one-time qualification rate of finished nuts.

LS+ perfectly adapts to classified screening and impurity removal of most commercial nuts. With hardware-level full-angle detection optimization, it reduces repeated rework and manual secondary inspection costs, bringing obvious economic benefits for medium and large-scale standardized nut production lines.

Applicable Sorting Materials

Built upon the lossless anti-break conveying structure of the standard LS model, LS+ is equipped with dual-view omnidirectional infrared scanning matched with color CCD imaging system. It targets graded screening and impurity elimination for a full range of commercial nuts and oil seeds, solving detection blind spots brought by irregular nut shapes and stacked materials.

1. Walnut Kernel Fine Grading & Purification
   Realize automatic color sorting of walnut kernels into premium light kernels, ordinary light kernels, light red kernels and dark red kernels. Precisely reject shriveled kernels, moldy kernels, rancid black kernels, walnut septum and residual shell fragments hidden inside raw walnut materials via dual-angle infrared penetration detection.
2. Universal Sorting for Multiple Hard-Shell Nuts
   Stably complete kernel-shell separation and impurity removal for almonds, pistachios, hazelnuts, pine nuts and pecans. The dual-view infrared structure avoids missed detection caused by overturned and piled nuts during continuous feeding, guaranteeing high purity of finished nut kernels.
3. Oil seed raw material purification
   Applicable to sorting and cleaning of camellia oleifera seeds, removing seed husks, deteriorated particles and foreign sundries mixed in raw oil seeds. The oil-proof conveyor belt is resistant to grease precipitation of oily nuts and oil seeds, supporting convenient daily cleaning and maintenance.