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04-08-2016

Purity Concept Systems X-Ray Scanner

On- and Offline Analyses of Pellets and Flakes

With the Purity Concept Systems, Sikora AG, Bremen, Germany, presents a preview of its systems for on- and offline inspection and analysis of plastics. Depending on the application, the systems operate with x-rays (X), infrared light (IR) or optical sensors (V). They can be used during production or for random sampling to detect impurities as small as 50 μm. According to the information from the manufacturer or the systems are ideal for use during production of medical tubing.

Depending on the application, the systems operate with x-rays, infrared light or optical sensors (© Sikora)

Sensitive end products require reliable inspection and processing of raw materials. In the view of the company, conveying of plastic pellets involves a number of weak spots that can permit contamination. For instance, unloading of transport vehicles to silos is one way that potential impurities in the form of dust or other foreign matter can enter. To date, this has been addressed through use of manual random sampling of the material prior to processing. Despite the greatest care, however, contamination can still occur.

This is why the manufacturer recommends the use of a concept system for inspection and analysis through use of optical sensors for transparent pellets/flakes and x-rays for black pellets/flakes, for instance. Only in this way can inspection at receiving ensure that the starting material has the desired quality of the end product.

When processing high-quality and high-priced polyethylene compounds (XLPE), relying on several random samples for inspection frequently is not satisfactory. In this case, the manufacturer recommends incorporating online analysis of the material into the manufacturing process.

For low throughputs of up to 50 kg, the company offers a system with conveyor belt that can be integrated into existing lines. Depending on the model, the equipment inspects pellets and flakes with optical sensors or uses x-rays at the inlet to the extruder to detect impurities as small as 50 μm.

Company profile

SIKORA AG

Bruchweide 2
DE 28307 Bremen
Tel.: 0421 48900-0
Fax: 0421 4890090

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