EuroWire January 2023

Technology News

Loose tube production: repeatable precision at high speed

The line length of only around 30m is made possible by a short cooling trough design and a new linear guiding. The line provides the option to monitor excess fibre length (EFL) online, enabling fast feedback during production and givingmanufacturers the ability to react immediately during the process. An offline EFL measuring system is also available. The Rosendahl Nextrom crosshead with linear guiding has been further optimised, and works for dry as well as for jelly-filled applications. An improved clenching capstan helps to minimise excess length of the fibre and post shrinkage of the PP/PBT tube during the production process, helping to produce a storable, temperature-insensitive product at a high yield.

Rosendahl Nextrom has created a com- pletely new design for a loose tube manufacturing line, allowing PBT micro- tubes to be processed at line speeds of up to 1,200m/min while meeting product requirements with precision.

The line includes an option for EFL monitoring

The line is also equipped with a fibre cutter, a rewinding mode and dual take up for automatic reel changes. The company has a demonstration loose tube line at its technology centre in Pischelsdorf, Austria. Visitors can observe the line during production, and interested parties can bring materials and recipes for tests on the laboratory line.

RL-R loose tube production line for fibre optical cables

Rosendahl Nextrom GmbH https://rosendahlnextrom.com

Electrolytic pickling Descalinox P22 is a new product devel oped by Condoroil for the electrolytic pickling of stainless steel bars, profiles and wire rods.

Descalinox P22 has been developed to substitute sulphuric-acid-based electro- lytic pickling products in electrolytic pickling tunnels installed directly in line. The pickling solution can be continu ously regenerated using the acid retarda tion technology of Condoroil’s Resibed unit. Condoroil Chemical Srl https://condoroil.com

The formula is based on organic acids and the product is labelled only as irritating. This is of particular benefit when electrolytic pickling is performed directly in the production line, where the possibility of accidental contact with the operator is greater.

Condoroil’s new formulation replaces sulphuric-acid based electrolytic pickling products

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January 2023