Wannan samfurin mai amfani shine ingantacce sau biyu {{0} Layer Grate a tsaye tabbatacce mai ɗaukar ruwa mara kyau. Kowane farantin grate yana da envex Arc {{2} {} fasali na samarwa kuma ana sarrafa ta ta hanyar tsayayyen shaft; Yana fasalta saitin rectangular Movalabiri wanda zai iya motsawa a kan bututun ƙarfe na ruwa don sanya tashar motsa jiki ta hanyar sanya tashar jirgin ruwa don cire motsi.
