Nuts and dried fruit present a unique sorting challenge — high-value raw materials arrive with a wide range of visible defects, including shell fragments, mold, discoloration, and foreign materials such as stones, sticks, or processing debris. Sorting these contaminants at an early stage is critical: missed defects carry costly consequences downstream, while over-rejection erodes valuable yield.
The Legende H Series is an intelligent vision-based sorting system tailored to pre-sort nuts and dried fruit and protect both product quality and processing efficiency from the very first step. Leveraging high-resolution RGB (HR-RGB) imaging technology powered by proprietary AI algorithms, the system precisely detects and removes color variations, visible defects, and foreign materials in real time, improving finished-product consistency, and providing a more efficient, reliable and quantifiable solution for nuts and dried fruit pre-sorting.
AI-driven surface defect recognition algorithms — trained on real-world production data using deep learning, with sorting precision refined continuously — ensure high sorting accuracy across a diverse range of nuts and dried fruit — helping processors enhance product quality, increase throughput, reduce labor costs, and improve overall product quality from the earliest stage of production.
Applications

Technical Features
● Tailored Optical Sorting System for Pre-Sorting Nuts and Dried Fruit
✦ Compact single-belt sorting system with quick-install design
✦ High-capacity vibratory feeding system evenly distributes nuts and dried fruit into a single layer to minimize overlapping
✦ Food-grade stainless steel structure complies with global food safety and hygiene standards
✦ Sealed scanning/control enclosures provides machine with high-level dust protection
✦ Quick belt change ensures convenient routine maintenance and cleaning, meeting higher food safety and hygiene standards
✦ Integrated Dust Control System maintains high operation reliability and performance consistency, and minimizes downtime
✦ Available in three models with belt widths of 300 mm, 600 mm, and 1200 mm, enabling processors to select the throughput capacity that best fits their production requirements
● AI Powered High-Precision Defect Inspection System
✦ Proprietary AI algorithms enhance defect detection, with models retrainable on real-world production data via deep learning, enabling continuous refinement of sorting precision
✦ High-Resolution RGB Camera System captures detailed surface imagery, replacing traditional manual sorting
✦ High-Intensity LED Illumination System ensures clear and stable imaging
✦ Market-leading high-precision detection of various detects in nuts and dried fruit based on surface features:
✩ Color Defects: Dark spots, oxidation, abnormal color
✩ Shape Defects: Broken, shriveled, misshapen, oversized, undersized
✩ Processing Defects: Shell fragments, pit residues, adhered skins
✩ Biological Contaminants: Insect damaged, visible mold, rotten
✩ Foreign Material Contamination: Insects, stems, leaves, stones, glass
● High-Performance Air Ejector System
✦ Engineered for enhanced durability, optimized speed and air consumption
✦ Accurate rejection and reliable performance at high-capacity sorting
✦ Significant reduction in false rejection rate and total cost of ownership
● 15-Inch Industrial Touchscreen Control Panel
✦ Intuitive HMI with multilingual support
✦ Instant switching between product profiles
✦ Comprehensive remote support system
✩ Remote Access and Monitoring
✩ Real-time Performance Dashboard
✩ Live Expert Diagnosis
✩ Interactive Troubleshooting
Specifications
Belt Width
(mm)
Air Nozzle
Air Pressure
(MPa)
Air Consumption
(m3/min)
Voltage
Power
(kW)
Dimension
(mm)
Unpacked Weight
(kg)
Legende H1
Legende H2
Legende H4
3336×2330×2126
Specifications are approximate and subject to change without notice. Lauffer Vision reserves all rights for modifications.
Model
300
64
0.6~0.8
<1.2
220V~50/60Hz
3.2
3385×1251×2127
710
600
128
0.6~0.8
<2.4
220V~50/60Hz
3.6
3385×1730×2126
850
1200
256
0.6~0.8
<3.6
220V~50/60Hz
4.4
1121