In the year 1954 the research and development base at Zetor was established, using the knowledge and experience of engineers of Zbrojovka Brno. Their first result was the Zetor Super 35 – a tractor with a four-cylinder diesel engine with the power of 42 hp (31 kW). Two new elements – a central axle with blade springs and a sprung driver’s seat - increased user comfort. The driver ´s cab was equipped with heating. In the years 1955 – 1960 21,500 tractors of this type were produced.