Legende HD Series AI-Driven Sorting System

Dual-belt models designed with high hygiene standards for nuts and dried fruit sorting, featuring secondary re-inspection to minimize false rejections and maximize yield. Powered by AI-driven VIS imaging and high-performance air ejectors, the system efficiently identifies and rejects discolorations, surface blemishes, and foreign material, delivering deep-learning–refined sorting precision.

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 material 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 HD Series is an intelligent vision-based sorting system tailored for this exact scenario. Powered by high-resolution RGB (HR-RGB) VIS imaging and proprietary AI deep learning algorithms, the system performs real-time scanning and surface feature analysis on nuts and dries fruit, and paired with high-performance air ejectors, achieves millisecond-level precision rejection of discolorations, surface blemishes, and foreign material.


Empowered by AI-driven surface feature recognition, the system continuously learns from real production data, steadily improving its detection accuracy. This means the equipment's performance is not static after deployment; instead, it continuously adapts and improves as production data accumulates, delivering stable and reliable sorting performance. It enables nuts and dried fruit processors build a strong quality defense from the earliest stage of production, effectively ensuring product purity and processing profitability.

Applications


Technical Features

● Tailored Vision-Based Sorting System for Nuts and Dried Fruit

✦ Innovative dual-belt structure

✩ Upper Primary Sorting Belt

Applies stringent rejection standards to efficiently remove discolorations, surface blemishes, and foreign material, drastically reducing missed detections.

✩ Lower Secondary Sorting Belt

Performs re-inspection on the rejected stream, efficiently recovering good products to boost overall yield.


✦ High-Performance Vibratory Feeder

Evenly distributes nuts and dried fruit into a single layer, effectively minimizing material overlap, and providing a stable material posture for high-precision detection.


✦ Easy-to-Clean Structural Design

Adopts food-grade stainless steel construction with sealed camera chamber and electrical cabinet, effortlessly handling complex processing environments.


✦ Integrated Self-Cleaning System

Automatically cleans the camera chamber glass to continuously keep the scanning area clear, reducing manual intervention and downtime for cleaning, and ensuring continuous and stable equipment operation.


✦ Multi-Specification Model Portfolio

Offers belt widths of 600 mm and 1200 mm, meeting diverse throughput requirements.


● AI Powered High-Precision Defect Inspection System

✦ High-Resolution RGB (HR-RGB) VIS Imaging

Clearly presents material surface features, providing reliable image input for AI algorithms to ensure the accuracy and stability of visual recognition.


✦ Proprietary AI Deep Learning Algorithms

Enhances surface feature recognition and supports model retraining with real-world production data, continuously improving the detection accuracy through deep learning.


✦ High-Intensity LED Illumination

Guarantees a constant imaging environment with clear and stable images, unaffected by external light changes, ensuring consistent detection results across different time periods and batches.


High-precision detection for various defects, contaminants, and foreign material 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: Insects, stems, leaves, stones, glass


● In-House High-Performance Air Ejector System

✦ Optimized Ejector Valve Design

Balances durability, response speed, and air consumption efficiency, maintaining stable performance even under long-term, high-frequency operation.


✦ High-Speed, High-Precision Ejection

Delivers millisecond-level response and precise material rejection, ensuring optimal sorting accuracy even under high-throughput conditions.


✦ Reduced Operating Costs

Significantly lowers the false reject rate, minimizing material waste from good products being incorrectly ejected, while optimizing air consumption to reduce overall operational expenses.


● 15-Inch Industrial Touchscreen Control Panel

✦ Intuitive Interaction

User-friendly human-machine interface (HMI) with multi-language support.


✦ One-Click Switching

Quickly recalls sorting parameters for different products.


✦ Comprehensive Remote Support

✩ Remote access and real-time monitoring

✩ Performance data dashboard

✩ Online expert diagnostics

✩ Interactive troubleshooting

Specifications

Model

Belt Width

(mm)

Air Nozzle

Air Pressure

(MPa)

Air Consumption

(m3/min)

Voltage

Power

(kW)

Dimension

(mm)

Unpacked Weight

(kg)

Legende HD2

600 256 0.6~0.8
<2.0 220V~50/60Hz
6.4 3641×1700×2804
1393

Legende HD4

1200 512 0.6~0.8
<4.1
220V~50/60Hz
7.9 3641×2300×2804
1836
Specifications are approximate and subject to change without notice. Lauffer Vision reserves all rights for modifications.