Separation AG, of Eynatten, Belgium - part of the Greiwing Group and specializes in the sorting of plastic granules, is increasing the quality of its services by offering its customers automated (and thus optimized) quality control using innovative analysing technology from Optical Control Systems (OCS) GmbH.

With the PS25C pellet scanner, both highly transparent and opaque granules are analysed on a vibration plate by a high-performance color matrix camera. This method detects contamination within a few minutes, ensuring a smooth production flow.

“We guarantee our customers high-quality services. This makes comprehensive quality controls using optoelectronic sorting indispensable. With the innovative analysing technology of OCS, we can even inspect samples at a resolution of 30 micrometers,” said Jürgen Greiwing, delegated administrator of Separation AG.

Separation AG has been part of the Greiwing group of companies since 2020 and has specialized in the optoelectronic sorting of plastic granules for the last 20 years. It offers quality improvement processes - in the automotive and pharmaceutical industries in particular, top quality is key since even the slightest contamination can be visible in the end product and can potentially result in malfunction.

To ensure that the separated goods meet the customer’s quality requirements and are free of even the smallest foreign particles, random samples of usually 500 grams are taken during and at the end of the sorting process. The approximately 5,000 granules contained in one of these samples are scanned by the PS25C for any defects within minutes using modern LED technology and a 3-CMOS industrial camera.

At this rate, 12 kilograms of granules can be inspected in less than an hour. A multi-track flap system reliably eliminates contamination as small as 30 micrometres in size across an inspection channel 60 millimetres wide.  As Markus Piepenbrink, sales manager at OCS GmbH, explained, “Contaminations are inspected and recorded across the entire RGB color spectrum. The granules passing through the pellet scanner are captured from every angle by the cameras.” If any impurities such as black specs are found in the sample, the goods can be separated again until the required quality is met. Another advantage of the OCS system is real-time data transmission to production and process control as well as subsequent analysis of rejected pellets by additional analytical systems.


www.separation.group
 
www.greiwing.de/en

 

From left: Mario Bortolussi, sales at Separation AG, Markus Piepenbrink, sales manager at OCS GmbH and Jürgen Greiwing, delegated administrator, are pleased with the successful cooperation and increase in quality thanks to the pellet scanner from OCS GmbH.
 

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