EuroWire November 2015

Feature Compounds, coverings & extrudingmachinery

Success for the new UXH0710

conductors as well as solid or foamed insulations. A larger, 13mm (0.512") bore reduces melt pressure, allowing faster line speeds at lower pressures. The UXH0710 series is capable of processing conductors up to 7mm (0.275") in diameter and an insulated diameter up to 10.5mm (0.413"). Howar Equipment Inc – USA Website : www.howarequipment.com

Unitek Crossheads, represented in North America by Howar Equipment Inc, has had great success with its new UXH0710 series of fixed centre crossheads on fibre optic cable insulating and jacketing requirements. The crossheads can be used for single layer, stripe or skin layer insulation. Benefits include: • Short head lengths for easy set-up • Extremely durable material • Small diameter for even heat • Precise and few parts yield highest concentricity • Few tooling change steps

over insulation. A common, single head design means fewer components to the crosshead and a smaller spare parts list. The combination of extreme small inner volumes and the free flow technology approach is good for quick colour changes and reduced downtime. The smaller inner volume minimises resonance time in the crosshead and is a perfect choice for smaller gauge

▲ ▲ The new Unitek UXH0710

The simple, compact design of the UXH0710 series is suitable for insulating extremely flexible fibre-optic cables and fibres. The short length of the head makes the set-up and feeding in of cable/ fibre easy for the operator. Once assembled, the fixed centred head will immediately run a highly concentric product since there is no further operator intervention and adjustment needed. Gum space can be adjusted on the fly at the exit side of the crosshead. Tooling is extracted in three steps from the exit side of the crosshead without needing to remove any heaters. The new head design is based off a proven flow technology implemented on its fluoro-polymer heads, and tested in collaboration with some worldwide customers requesting smaller sized heads, which are more user-friendly when doing tooling changes. The fixed centre crosshead allows for a repeatable, immediate concentric start up which drastically reduces scrap and

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November 2015