The working member of a movable cutting machine is a steel plate-type knife, which performs a reciprocal vertical motion, or a round knife, which rotates at high speed. Knife cutting machine oscillation knife is shifted manually relative to the layer along lines drawn on the top card web. In stationary cutting machines, the working member, or cutter, is a high-speed endless band saw. Movable cutting machines are usually used for cleaving the layers into sections. Such machines have line-cutting capacities of 1,150–1,400 m (straight-knife machines) and 1,250–1,500 m (round-knife machines) over a seven-hour period. Cutting machines with a band saw are used for the clean cutting of pieces of articles from the parts of the layer. The material is moved manually on the cutting-machine table in relation to the band saw. Band-saw cutting machines provide better cutting quality, and their output averages twice that of straight-knife cutting machines.