PURITY CONCEPT Systems
The purity of high-performance materials—such as those used in the medical sector, semiconductor manufacturing, film extrusion, the aerospace and automotive industries, or in the production of medium-, high-, and extra-high-voltage cables—is a critical factor in the quality of the end product. Therefore, throughout the entire process—from manufacturing and compounding to the processing of injection-molded parts, profiles, or films—the purity of the plastic granules is a top priority for the polymer industry.
The PURITY SCANNER ADVANCED is specifically tailored to the requirements of the plastics market. It ensures consistent material quality, minimizes the risk of potential complaints, and prevents returns of contaminated material. The result is a strong competitive advantage as well as a rapid return on investment
For the cable market, the purity of XLPE and PP pellets—used, for example, to insulate medium-, high-, and extra-high-voltage cables as well as onshore and offshore cables—is a particularly critical factor. Breakdowns during discharge testing caused by contaminated material jeopardize product safety and can result in costs in the six-figure range. Against this backdrop, continuous quality control during the production process is essential to ensure the integrity and safety of the products.
The PURITY SCANNER ADVANCED combines X-ray technology with a flexible optical camera system and reliably detects contaminants as small as 25 µm both within the granules and on their surface. Contaminated individual granules are automatically sorted out, ensuring that only pure material is processed further.
Depending on the type of expected contamination and application, the system can be equipped with X-ray and optical technologies or exclusively with optical technology. The user can customize the system to their requirements with an X-ray camera and up to three optical black-and-white cameras. The X-ray camera detects metallic contaminants within the granules and on their surface, while color deviations in transparent, translucent, or colored raw materials are reliably detected by the black-and-white cameras. This ensures that all types of granules (including black ones) are reliably inspected.
| Application Fields |
|
|---|---|
| Inspection Methods/Sensor Technologies | X-ray and optical cameras |
| Smallest Detectable Contamination Size | X-ray: 50 µm (cube 3D), 50 x 50 x 50 µm Optical: 25 µm (square 2D), 25 x 25 µm |
| Throughput | Depending on geometry and specific weight of the material to be inspected, there are throughputs possible from a few kilograms up to one ton/hour* per device. A combination of devices allows for the inspection and sorting of higher throughput capacities. |
| Permissible Ambient Temperature | + 5 to + 45 °C |
| Air Humidity | max. 95 % (without condensation) |
| Interfaces | RS232, USB Optional: industrial fieldbus (e.g. Profinet IO, EtherNet/IP, Profibus-DP, CANopen, DeviceNet), LAN (Ethernet), OPC UA |
| Power Supply | 3 ph 400 V AC (± 10 %), 50/60 Hz (± 3 %); 2,700 VA Compressed air supply: min. 6 bar / max. 8 bar / Air quality class 3 (ISO 8573.1) |
| Dimensions | 2.068 x 1.499 x 641 mm
(width x height x depth) |
| * This refers to a system with optical inspection. Systems that combine optical and X-ray technology provide a throughput up to 600 kg/hour per device. |