Grün VPC Series Optical Sorting System

Plastic flakes present a sorting challenge where color consistency directly determines material value — mixed-color flake streams, even when clean and uniform in size, carry significantly lower market value than color-sorted output. For recycling pre-processing plants, the ability to accurately separate flakes by color — including subtle shade variations that are difficult to distinguish visually — is the key to transforming low-value mixed streams into premium, color-pure material ready for high-end reprocessing applications. Advanced vision-based sorting is the key to unlocking the full commercial potential of every flake.

The Grün VPC Series is an advanced vision-based sorting system tailored for recycling pre-processing plants. Leveraging high-resolution RGB (HR-RGB) imaging technology, the system detects and recovers high-value plastic flakes from material streams based on precise color differentiation — increasing the value of recycled material output. For enhanced detection and recovery of light-colored flakes, optional NIR cameras are available to extend sorting capability beyond the visible spectrum.

Using application-specific sorting algorithms, the system ensures consistently high sorting accuracy across diverse flake compositions and color profiles — helping processors maximize color-sorted yield, reduce material downgrading, and deliver premium-quality recycled flakes with unmatched confidence.

Technical Features

● Tailored Optical Sorting System for Plastic Flakes

✦ High-capacity vibratory feeding system evenly distributes plastic flakes into a single layer to minimize overlapping

✦ Sealed scanning/control enclosures provide machine with high-level dust protection

✦ Integrated Dust Control System maintains high operation reliability and performance consistency, and minimizes downtime

✦ Modular vertical frame design lets processors scale capacity to match their needs, available in 4, 6, 8, or 10-chute configurations

● Reliable Color Inspection System for Industrial Recycling

✦ High-Resolution RGB Camera System differentiates colors for high-purity output

✦ Optional NIR Camera System enhances the identification of light-colored flakes

✦ High-Intensity LED Illumination System enables detection of subtle color differences, minimizing false rejects

● High-Performance Air Ejector System

✦ Engineered for enhanced durability, optimized speed and air consumption

✦ Accurate rejection and reliable performance at high-capacity sorting

✦ Adjustable settings for typical plastic flake sizes (3-15 mm)

● 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

Applications

Benefits

Produces clean, color-consistent flake streams by removing off-color, contaminated, or mixed-polymer flakes, directly supporting high-grade and high-value recycling applications.

Recovers valuable flakes from mixed-color streams that would otherwise be downgraded, maximizing the return from every ton of input material.

Color-sorted flakes command higher market prices and qualify for premium end-use applications such as bottle-to-bottle recycling, where strict color and purity standards are required.

Automates color classification at high throughput, lowering labor costs and eliminating the inconsistency and safety risks associated with manual sorting.

Cleaner, color-uniform flakes reduce reprocessing steps, minimize equipment wear, and support more stable extrusion and pelletizing operations.

Delivers reliable, repeatable sorting performance across varying feed compositions, ensuring stable output quality even as input material fluctuates.

Specifications