Xylan Stops Tapers Jamming Case Study - Whitford Worldwide
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Xylan stops tapers jamming

CCL Systems makes equipment to prestress the steel strands that reinforce concrete structures. One end of the strand is anchored; the other is grasped by a three-part tapered collet and collar held in the jaws of an extremely heavy-duty jack. Loads up to 300 KN (67,000 lbf) are applied until the concrete is set, forcing the tapered parts together.


Freeing the collet once the tension was removed — without permanently damaging the collet — was difficult. CCL Systems discovered that coating the wedges with Xylan 1052 eliminated the jamming completely and ensured reusability.


Xylan reduces fretting of collet connectors.

Xylan reduces fretting of
collet connectors.


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