A laser-based measurement system performs online diameter control and flaw detection of opaque or transparent extruded products. The Aeroel Extruline system from Marposs prevents the production of out-of-tolerance products by detecting and locating diameter flaws along the product’s entire length. It is suited for use with glass pipes, medical tubing, sections, electric cables, and similar products.
The non-contact technology enables measurement of moving products — hot or soft — without damage. Out-of-tolerance conditions trigger an alarm, helping to reduce scrap and rejects later in the process.
The diameter and ovality of stock from 0.1 mm to 149 mm can be controlled either via a single- or dual-axis laser gauge, depending on the diameter range and type of product. Product vibration and movement do not affect the process. The gauge is installed just after the extruder head, eliminating any contact with the guiding roll and resulting in faster and more effective regulation, according to Marposs.
Marposs is represented in South Africa by RGC Engineering (Pty) Ltd. Tel. 011Â 887 0800.
