The sorting challenge for plastic flakes lies in the fact that color consistency directly determines material value. Even when mixed-color flakes are perfectly clean and uniform in particle size, their market value remains significantly lower than that of color-sorted output. For recycling pre-processing plants, the ability to efficiently sort flakes by color, including subtle shade variations difficult to distinguish with the naked eye, is the key to transforming low-value mixed material into high-purity, premium-quality material ready for high-end reprocessing.
The Grün VPC Series is a machine-vision-based sorting system tailored for this exact scenario. It employs high-resolution RGB (HR-RGB) VIS Imaging technology to perform real-time scanning and surface feature analysis of plastic flakes. Working in conjunction with high-performance air ejectors, it can efficiently identify and recover target-color plastic flakes from the material stream within milliseconds based on color differences. For enhanced detection and recovery of light-colored flakes, the system also offers optional near-infrared (NIR) imaging, extending sorting capability beyond the visible spectrum.
Technical Features
● Tailored Machine-Vision-Based Sorting System for Plastic Flakes
✦ High-Performance Vibratory Feeding: Evenly spreads plastic flakes into a single layer, effectively reducing material overlap and providing a stable material posture for high-precision detection.
✦ Sealed Camera Chamber and Electrical Cabinet Design: Ensures stable operation of internal optical components and electrical systems, adapting to the dusty environment of plastic flake processing workshops.
✦ Integrated Self-Cleaning: Automatically cleans the camera chamber glass, continuously maintaining a clear detection zone, reducing manual intervention and downtime for cleaning, and ensuring continuous and stable equipment operation.
✦ Multi-Specification Model Portfolio: Offers configurations with 4, 6, 8, and 10 chutes to meet varying throughput requirements.
● High-Precision Color Inspection System
✦ High-Resolution RGB (HR-RGB) VIS Imaging: Clearly presents material surface colors, ensuring the accuracy and stability of machine-vision recognition.
✦ Optional Near-Infrared (NIR) Imaging: Enhances the identification capability for light-colored flakes.
✦ High-Brightness LED Illumination: Maintains a consistent imaging environment with clear and stable images, unaffected by external light changes, ensuring consistent detection results across different time periods and batches.
● 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
Applications

Specifications
Chute
Throughput
(t/h)
Air Pressure
(MPa)
Air Consumption
(m3/min)
Power
(kW)
Unpacked Weight
(kg)
Dimension
(mm)
1804×1823×2007
Specifications are approximate and subject to change without notice. Lauffer Vision reserves all rights for modifications.
Model
Air Nozzle
Grün VPC4
4
256
1.0~4.0
0.6~0.8
<2.0
2.9
1082
Grün VPC6
6
384
2.0~4.0
0.6~0.8
<3.0
4.4
1390
2434×1823×2007
Grün VPC8
8
512
3.0~6.0
0.6~0.8
<4.0
5.9
1750
3064×1823×2007
Grün VPC10
10
640
4.0~8.0
0.6~0.8
<5.0
7.3
2144
3734×1823×2007