There are three types of scrape wings available for concrete passages – edge wings or so-called straight wings as well as a wing model for manure passages, in which the cross channel is not located at the end of the building.
A straight wing is suitable for use in freestall barns with passages less than 60m in length.
Edge wing models are recommended for passages over 60m long in which a cross channel is located at only one end. Edge wing models can also be used in cold freestall barns, in which the manure is drier.
Wings for open channels always require a guide groove in the bottom of the manure passage, either with a U-steel beam or a urine separation element. All open channel wings are articulated from the middle, so that sloping of the manure passage does not affect the functioning of the scrape.