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April 19, 2010 02:00 AM

Cooling system works inside, outside of pipe

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    Battenfeld Extrusionstechnik GmbH's new efficient air cooling  (EAC) internal air-cooling system helps pipe extruders improve quality and output.

    EAC can be used during production of both monolayer and multilayer polyolefin pipes. It can be directly integrated into new dies, or retrofitted to existing Battenfeld VSI dies.

    EAC cools pipes from inside and outside, using only air. The interior of the pipe is cooled by using air exchange, with the hot air getting sucked off. At the same time, the mandrel inside the die is cooled via a special mechanism. The outside of the pipe is cooled via a special mechanism, and also supplied with cooling air.

    In this way, the pipe is cooled very evenly, reducing tension inside the pipes and deposits on the inner surface, according to the company in Bad Oeynhausen, Germany.

    Improved product quality occurs because the sagging effect is avoided, and the deformation of pipe ends following cutting is significantly reduced, the company said.

    Tel. 49-5731-242-0, fax 49-5731-27 124, e-mail [email protected].

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