Die Holzgas Traktoren
Hürlimann 4KT40C
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My first wood gas tractor, a Swiss Hürlimann 4KT40C from 1937, was used exclusively with wood gas from 1941 to 1948. I started restoring it at the age of 16. This was the origin of my fascination with wood gasifiers.
Meili SP3
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My father Richard Hagen installed a Meili wood gas system. The tractor, built in 1945, has a large-volume, side-controlled De Soto six-cylinder engine. The engine runs silky smooth on wood gas.
Hürlimann 4(K)T42
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The second Hürlimann, a 4T42 built in 1938, was originally also equipped with a wood gas generator. Although the system was no longer present, the type of additional holes drilled in the casting left clear indications.
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So it was decided to retrofit the tractor with an original Imbert system. My father Richard Hagen completely restored this tractor. Together we rebuilt the wood gasifier.
Plowing on wood gas
During a museum show in Schaffhausen, the 4T42 was used to plow under wood gas. The 4B100 engine with 40 hp from 3.8 liters of displacement and a maximum speed of 1800 'min is ideal for the slow-burning wood gas.