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Trelleborg introduces engine cooling hose

A Trelleborg Automotive product story
Edited by the Engineeringtalk editorial team Oct 17, 2008

Trelleborg Automotive has released its fibre-based Creatube engine cooling hose, designed to offer advantages over traditional, multi-layered hoses that incorporate a textile/knitted construction.

Creatube comprises a mono-layer construction that integrates fibre compound directly into rubber material and employs a moving die process to shape the hose directly after extrusion.

This differs from multi-layered traditional variants, which require straight hoses to be formed manually using a mandrel, before vulcanisation in an autoclave.

The results of stringent internal endurance testing saw Trelleborg's Creatube continue to perform after 300,000km.

Specifically, this longevity performance meets the increasing requirements of car manufacturers for more durable products that better withstand ageing.

In addition, Creatube offers a global suitability, with proven functionality under extreme climatic conditions, from -30C to +125C.

Unlike traditional knitted methods that limit the length, radius and number of curves obtainable, Creatube enables the construction of longer and more complex shaped hoses, which were previously unachievable.

Creatube's automatic manufacturing process reduces production time to around 40 minutes, compared to the two days demanded by more labour-intensive traditional methods.

This automatic process delivers time-saving benefits for car manufacturers, while offering a less energy-consuming alternative that improves the working conditions for production line employees.

Creatube's manufacturing process also avoids the need to 'flush out' hoses with release agent, thereby eliminating potentially adverse health and environmental effects.

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