The Swiss company Hürlimann began tractor manufacturing in 1929. Ten years later, they switched to direct injection diesels produced under license from the Saurer truck manufacturer. At this stage, Hürlimann had established itself as the Rolls-Royce of tractors, as a competing tractor manufacturer, Samen Cassani, put it. During the war years, Hürlimann's production continued almost normally, despite shortages of raw materials and fuel. In 1945 and 1946, Switzerland organized Hürlimann columns to aid agriculture in France and Italy.

After the war, in 1946, Hürlimann introduced a new range featuring diesel engines designed in-house for the first time. Partly due to poor availability of parts, Hürlimann produced many components themselves; for example, the headlights used homemade plexiglass instead of glass lenses. The electrical system was 24 volts. The first new models were the 45-horsepower, 4-cylinder D100 and D200. The latter had, among other things, larger rear wheels, a stronger gearbox, and a bent front axle. The transmission was 5+1. Soon after followed the 65-horsepower D300 as well as industrial models D400 (45 hp) and D500 (65 hp), which could reach maximum speeds of 45 km/h. In 1948, the 2-cylinder D50 was introduced, producing 28 hp. At this stage, Hürlimann tractors had the clutch pedal on the right and the brake on the left. The D50 featured steering brakes as a novelty. The differential lock was standard. The lift device was optional and did not conform to later standards.

In 1951, Hürlimann introduced the heavy-duty D600 model, primarily aimed at the South American market. The engine was the same as in the D300, but the size and weight were substantially greater.

The D50 was replaced in 1952 by models D60 and D80, which were lighter in construction than their predecessor but longer and equipped with a small four-cylinder diesel engine.

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