Nut sorting faces a challenge that traditional VIS systems struggle to overcome: shells and foreign material are highly similar to good products in both color and appearance. Relying solely on VIS imaging makes it difficult to distinguish them, posing a serious quality and brand threat to processors serving high-end retail, confectionery, and foodservice markets.
The Monarch VGN Series is a machine-vision-based sorting system tailored for this exact scenario. Through the deep integration of dual-band InGaAs-SWIR (Short-Wave Infrared) imaging and high-resolution RGB (HR-RGB) VIS imaging, the system combines internal chemical composition analysis with surface feature recognition, extending its detection capabilities far beyond single VIS imaging. Specifically, the SWIR imaging efficiently identifies shells and foreign material that are visually indistinguishable from good products and undetectable by VIS imaging, while the VIS imaging handles the detection of conventional surface feature defects. Paired with high-performance air ejectors, the system achieves millisecond-level precision rejection of color variations, surface defects, and foreign material.
By leveraging the complementary advantages of dual-sensor imaging technology, the system effectively solves the persistent challenge of "same-color foreign material" that traditional equipment struggles to address. It helps nut processors consistently deliver batches with extremely low defect rates, safeguarding brand reputation with reliable sorting performance, ensuring product quality and food safety, and meeting stringent industry and export standards.
Applications
Technical Features
● Tailored Machine-Vision-Based Sorting System for Premium Nuts
✦ Robust and Durable Structure
The main body is built from high-strength carbon steel with anti-corrosion coating, while all product-contact parts are made of stainless steel, meeting standard food safety requirements and engineered for long-term continuous operation in dehydrated vegetable processing environments.
✦ High-Performance Vibratory Feeder
Evenly distributes nuts into a single-layer spread, effectively minimizing material overlap and providing stable product presentation for high-precision inspection.
✦ Sealed Camera Chamber and Electrical Cabinet Design
Ensures stable operation of internal optical components and electrical systems, well-suited for dusty environments found in dehydrated vegetable processing workshops.
✦ Integrated Self-Cleaning System
Automatically cleans the camera chamber glass, continuously maintaining a clear scanning area, reducing manual intervention and downtime for cleaning, and ensuring uninterrupted stable operation.
✦ Multi-Specification Model Portfolio
Available in 1, 3, 5, and 8 chute configurations to meet diverse throughput requirements.
● High-Precision Defect Inspection System
✦ Dual-Band InGaAs-SWIR Imaging
Captures images across two short-wave infrared bands, efficiently identifying shells and foreign material that are visually indistinguishable from good products and undetectable by RGB visible-light cameras.
✦ High-Stability Halogen Illumination
Provides stable illumination across the full spectral range. The air-cooled design helps maintain consistent light output during operation and extends lamp service life.
✦ High-Resolution RGB VIS Imaging
Delivers high-precision surface imaging and accurate color reproduction, enabling the detection of surface feature defects such as shell discoloration, visible blemishes, and irregular shapes.
✦ 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 of nut defects based on surface features and spectral fingerprints, tailored for premium nut processors, offering significant advantages over traditional VIS systems:
✩ Efficiently identifies shells with colors closely matching the nuts — a task that is challenging for RGB visible-light cameras.
✩ Efficiently identifies foreign material such as plastics, stones, glass, and metals with colors closely matching the nuts — which are difficult to detect with VIS imaging.
● High-Performance Air Ejector System
✦ Optimized Design
The ejector valve structure is optimized to balance durability, response speed, and air consumption efficiency, maintaining stable performance even under long-term, high-frequency operation.
✦ High Efficiency and Stability
Optimized for high-throughput sorting conditions, it maintains stable ejection performance within reasonable parameter ranges, balancing throughput and sorting accuracy.
✦ Cost Reduction
Significantly reduces the false reject rate, minimizing raw material waste from good products being incorrectly ejected, while optimizing air consumption to reduce overall operational costs.
● 15-Inch Industrial Touchscreen Control System
✦ 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 |
Chute |
Air Nozzle |
Air Pressure (MPa) |
Air Consumption (L/min) |
Power (kW) |
Voltage |
Dimension (L*W*H)(mm) |
Weight* (kg) |
| Monarch VGN1 | 1 | 64 |
0.6~0.8 |
<800 | 3.3 |
220V～50/60Hz |
1095×1995×2151 |
713 |
|
Monarch VGN3 |
3 | 192 | 0.6~0.8 | <2500 | 5.5 |
220V～50/60Hz |
1727×2005×2142 | 1127 |
| Monarch VGN5 | 5 | 320 |
0.6~0.8 |
<4500 |
9.7 |
220V～50/60Hz |
2357×2005×2045 |
1475 |
|
Monarch VGN8 |
8 | 512 |
0.6~0.8 |
<5000 |
13 |
220V～50/60Hz |
3302×2005×2205 |
2058 |
Specifications are approximate and subject to change without notice. Lauffer Vision reserves all rights for modifications.
