Nuts present a sorting challenge that conventional optical sorting systems simply cannot overcome — shells and foreign materials that closely match the color and appearance of good product are often indistinguishable by standard RGB cameras and the human eye alike. For processors supplying premium retail, confectionery, and foodservice markets, these visually identical contaminants pose serious threats to product quality, production efficiency, and brand trust.
The Monarch HWN Series is an intelligent and multi-spectral dual-sensor sorting system tailored for premium nut sorting to detect what conventional technology cannot. Leveraging cutting-edge dual-band InGaAs-SWIR and high-resolution RGB (HR-RGB) imaging technology powered by proprietary AI algorithms, the system delivers unique chemical composition inspection capabilities that go far beyond the reach of conventional RGB-camera-based sorting systems — SWIR detects visually indistinguishable shells and foreign materials which are invisible to standard vision-based sorting, while RGB detects surface-feature-based defects.
Its AI-driven surface defect recognition algorithms — trained on real-world production data using deep learning, with sorting precision refined continuously — ensure consistently high sorting accuracy across a diverse range of nut varieties — helping processors remove visually indistinguishable shells and foreign materials, ensure compliance with food safety regulations, increase throughput, reduce labor costs, and deliver premium-quality nuts with confidence.
Applications

Technical Features
● Tailored Optical Sorting System for Premium Nut Processors
✦ Compact single-belt sorting system with quick-install design
✦ High-capacity vibratory feeding system evenly distributes nuts into a single layer to minimize overlapping
✦ Sealed scanning/control enclosures provides machine with high-level dust protection
✦ Food-grade stainless steel structure and quick belt change ensure convenient routine maintenance and cleaning, meeting higher food safety and hygiene standards
✦ Integrated Dust Control System and Air Cooling System maintains high operation reliability and performance consistency, and minimizes downtime
✦ Available in three models with belt widths of 400 mm, 800 mm, and 1200 mm, enabling processors to select the throughput capacity that best fits their production requirements
● AI Powered Ultra-High-Precision Defect Inspection System
✦ Dual-Band InGaAs-SWIR Camera System captures imagery across two short-wave infrared bands, detecting visually indistinguishable shells and foreign materials that are invisible to standard RGB cameras.
✦ High-Resolution RGB Camera System delivers precise surface imagery with accurate color reproduction, identifying color-based defects such as shell discoloration, as well as surface blemishes and shape irregularities.
✦ Proprietary AI algorithms enhance color-based defect detection, with models retrainable on real-world production data via deep learning, enabling continuous refinement of sorting precision.
✦ High-Stability Halogen Lighting System provides consistent, flicker-free illumination across the full visible spectrum, with air-cooling ensuring stable output and extended lamp life during continuous operation.
✦ High-Intensity LED Illumination System delivers powerful, energy-efficient lighting with long service life and minimal heat output, ensuring sharp surface detail capture at high throughput speeds.
✦ Unprecedented ultra-high-precision detection of various defects in nuts based on surface features and spectral signature for premium nut processors, with key advantages compared to traditional optical sorting:
✩ Detection of visually indistinguishable shells and foreign materials that RGB cameras cannot differentiate from good product
✩ Superior removal of shell fragments and pit residues with higher accuracy
✩ Better recognition of plastics, stones, glass and metal even if color-matched to nuts
✩ AI-driven identification of color-based defects such as shell discoloration and surface blemishes with sorting precision continuously refined via deep learning
● 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
|
Model |
Belt Width (mm) |
Air Nozzle |
Air Pressure (MPa) |
Air Consumption (m3/min) |
Voltage |
Power (kW) |
Dimension (mm) |
Unpacked Weight (kg) |
|
Monarch HWN1 |
400 | 80 | 0.6~0.8 | <1.2 | 220V~50/60Hz | 5.2 | 3960×1441×2315 | 960 |
|
Monarch HWN2 |
800 | 160 |
0.6~0.8 |
<2.4 |
220V~50/60Hz |
6.3 |
3960×1841×2315 |
1165 |
|
Monarch HWN3 |
1200 | 240 |
0.6~0.8 |
<3.6 |
220V~50/60Hz |
7.5 |
3960×2241×2415 |
1349 |
Specifications are approximate and subject to change without notice. Lauffer Vision reserves all rights for modifications.