Under the large MD 260 S, Lanz introduced a smaller lineup in 1956. The MD 18 S was equipped with a 182 cm cutting width and a 34-horsepower MB diesel engine. The raising of the cutter bar and the feed drum was hydraulic. The threshing drum was 80 cm wide and only 40 cm in diameter. It had five concaves, which were considerably wider than the threshing drum (105 cm). Unlike other sack-type combines, the MD 18 S did not have a cylindrical sieve for cleaning.

The MD 25 S had a cutting width of 230 cm. Its engine was a 50-horsepower Perkins. Its threshing drum measured 50 cm in diameter.

The largest models in the lineup were the MD 35 S and MD 40 S, which replaced the old MD 260 S. They were powered either by a 4-cylinder Perkins engine (62 hp) or a 6-cylinder MB engine (68 hp). Common features across the entire Lanz range included two gears, six threshing-drum speeds, engine placement next to the operator’s cabin, replaceable straw and grain sieves, and a large number of lubrication points. In the late 1950s, the machines’ color changed from yellowish to John Deere green, and in the early 1960s the brand became John Deere-Lanz.

In 1961, the MD 25 S was replaced by the MD 250 S, which had a cutting width 10 cm greater.

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