Legende HDF Series AI Optical Sorting System

Fresh vegetable appearance directly determines market value, but traditional sorting methods are facing growing challenges. Manual picking is heavily dependent on workers' experience, attention, and physical condition. After prolonged operation, visual fatigue leads to a significant increase in missed defect rates — damaged leaves, discoloration, insect damage, and other defective products easily "slip through" the human eye.

The Legende HDF Series is an intelligent, vision-based sorting system tailored for fresh vegetables industrial sorting and quality control. Leveraging high-resolution RGB (HR-RGB) imaging technology powered by proprietary AI algorithms, the system achieves all-weather and standardized detection and removal of color variations, surface defects, and foreign materials, ensuring sorting quality is no longer constrained by human physiological limits, improving finished-product consistency, and providing a more efficient, reliable, and quantifiable solution for fresh vegetables sorting.

AI-driven surface defect recognition algorithms — trained on real-world production data using deep learning, with sorting precision refined continuously — help processors enhance product quality, increase throughput, reduce labor costs, and maintain a competitive edge in the market.

Applications

Technical Features

● Tailored Optical Sorting System for Fresh Vegetables  

✦ Compact dual-belt sorting system with quick-install and simultaneous re-sorting design

✩ Primary sorting occurs on higher-level belt and aggressively removes all potential surface defects (may include false rejects)

✩ Secondary sorting on lower-level belt receives rejects from primary sorting for false-reject recovery

✦ High-capacity waterproof vibratory feeding system evenly distributes fresh vegetables into a single layer to minimize overlapping

✦ Food-grade stainless steel structure and sealed scanning/control enclosures withstand the demanding conditions of fresh vegetable processing plants

✦ Integrated humidity control system maintains consistent performance and minimizes downtime

✦ Available in three models with belt widths of 600 mm, 1200 mm, and 1800 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 a wide range of defects in fresh vegetables based on surface features:

✩ Color Defects: Discoloration, mold, rot

✩ Shape Defects: Misshapen, deformed, oversized, undersized, broken

✩ Surface Damage: Bruises, cuts, abrasions, crushing, scars, cracks, shriveling

✩ Biological Contaminants: Insect damage, leaf/stem residues, other vegetable debris, soil clumps

✩ Foreign Materials: Stones, plastic/rubber fragments, wood chips

● 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

Benefits

✦ Consistent Quality Control

Eliminates human variability in sorting, delivering uniform product quality across every production batch.

✦ Significantly Higher Throughput

Automated sorting operates continuously at high speed, far exceeding the capacity of manual sorting lines.

✦ Reduced Labor Dependency

Replaces multiple manual sorting stations, lowering labor costs and mitigating workforce shortages.

✦ Improved Food Safety

Detects and removes biological contaminants (insect damage, soil clumps) and foreign materials (stones, plastic, wood chips) that pose food safety risks.

✦ Lower Product Loss

Precise AI-driven defect detection minimizes false rejection, preserving more saleable product compared to manual sorting.

✦ Quick Product Changeover

Instant switching between product profiles enables processors to handle diverse vegetable types on a single machine without lengthy recalibration.

Specifications