Grün VPMC Pro Series SWIR Sorting System

Plastic flakes present a sorting challenge where conventional polymer identification falls critically short — specialty polymers such as PETG, PPSU, and TRIAN are visually indistinguishable from standard PET, yet even trace contamination from these look-alike materials can disrupt melt processing, compromise mechanical properties, and render entire recycled batches unsuitable for high-value manufacturing. For plastic recycling and manufacturing operations, the ability to separate these visually similar but chemically distinct polymers — while simultaneously classifying by color — is the key to producing truly pure recycled output that meets the demanding specifications of modern manufacturing. Dual-sensor multi-spectral sorting is the key to solving what single-sensor systems simply cannot.

The Grün VPMC Pro Series is an advanced dual-sensor multi-spectral sorting system custom-designed for the plastic recycling and manufacturing industry. Leveraging the fusion of cutting-edge tri-band InGaAs-SWIR and high-resolution RGB (HR-RGB) imaging technology, the system features the unique capability to achieve high-purity separation of PETG, PPSU, and TRIAN from PET — and automatically classifies plastic flakes by polymer types and color variations, enhancing the purity of recycled plastics for direct reuse in new products.

Using application-specific sorting algorithms, the system ensures consistently high classification accuracy across diverse flake compositions and contamination profiles — helping processors eliminate visually similar polymer contamination, maximize high-purity yield, and deliver recycled material that meets the exacting quality standards of downstream manufacturing with unmatched confidence.

Technical Features

● Tailored Sorting System for Plastic Flakes

✦ Innovative high-capacity 2-layer 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 and Air Cooling 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, or 8-chute configurations

● Tried-And-Tested Industrial Simultaneous Polymer and Color Inspection System

✦ Tri-Band InGaAs-SWIR Camera System

✩ Accurately identifies polymer types — e.g., PET, HDPE, PP, ABS, PC, PS, PMMA, etc. — by analyzing their unique short-wave infrared spectral absorption signatures, enabling reliable differentiation of polymers.

✩ Uniquely capable of separating specialty polymers — including PETG, PPSU, and TRITAN — from standard PET at high purity, overcoming the limitations of conventional dual-band SWIR systems that cannot distinguish these visually identical materials.

✩ Stable Air Cooling System maintains optimal InGaAs sensor operating temperature and Halogen Lighting System thermal stability, ensuring consistent spectral performance even in high-temperature production environments.

✦ High-Resolution RGB Camera System

✩ High-precision identification of color variations, off-color flakes, and surface contaminants, delivering accurate chromatic classification across diverse flake compositions.

✩ High-Intensity LED Illumination System provides bright, uniform lighting that enables detection of subtle color differences, minimizing false rejects and maximizing material recovery.

● 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

✦ Extended Polymer Identification Range

By analyzing short-wave infrared spectral absorption signatures across three distinct wavelength bands, the system accurately identifies polymer types — incluidng PET, HDPE, PP, ABS, PC, PS, PMMA, etc. — delivering the same reliable classification performance as dual-band SWIR systems — and extends this capability with the unique ability to separate specialty polymers such as PETG, PPSU, and TRITAN from standard PET at high purity, overcoming a critical limitation of conventional dual-band SWIR systems that cannot distinguish these visually identical materials.

✦ Simultaneous Color Classification

The integrated High-Resolution RGB Camera System detects a variety of color variations and surface contaminants in a single pass, delivering both material and color sorting without the need for sequential processing stages.

✦ Higher Output Purity

The combination of tri-band SWIR-based polymer identification and RGB-based color classification produces cleaner, more consistent flake fractions that meet the most stringent quality requirements for high-value recycling applications, including food-grade and bottle-to-bottle recycling.

✦ Upgraded Product Value

By enabling the separation of specialty polymers from standard PET — materials that would otherwise contaminate the PET stream and cause downgrading — the system helps recyclers capture the full value of every material fraction, commanding premium prices for purified outputs.

✦ Increased Material Recovery

Recovers valuable flakes from highly contaminated and complex mixed streams that would otherwise be downgraded or discarded, maximizing yield from every ton of input material.

✦ Operational Flexibility

Operators can switch between sorting tasks on the same machine without hardware changes, enabling rapid response to evolving market demand for both commodity and specialty polymer fractions.

✦ Improved Downstream Processing Stability

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

✦ Future-Proof Investment

As packaging formats evolve and specialty polymers become more prevalent in waste streams, the tri-band SWIR system provides the spectral resolution needed to handle increasingly complex sorting challenges without requiring hardware upgrades.

Specifications