Richards-Wilcox Track Expansion Sleeves are an important component to an overhead conveyor system, both designed to be used in cure ovens and located in each track in the area of the oven expansion joint.
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Depending on length and temperature, many ovens do not have expansion joints. In this case, it is recommended to use an expansion sleeve (from Richards-Wilcox) at the exit and entrance tracks to prevent snaking or waviness in the track both inside and outside the oven.
The movable track in the sleeve should be moved out 2" from the compressed length which would then be an overall length of 1'–6" instead of 1'–4" as shown. This allows for both contraction and expansion in the track.