Fruits of the forest

Doll, based in Germany, specializes both in logging and heavy and specialized trailers and has now combined both into one flat bed semitrailer. Features of this Vario T3H-S3 include a hydraulically detachable gooseneck, 5.8 m flat bed that can be extended to 11 m and hydraulic steering on all three axles.

A typical application is carrying logging machines on forest tracks so, for sufficient ground clearance, the driver can remotely control ride height via the gooseneck and axles. The electro-hydraulically controlled steering can be operated from the cab or by remote control and the last axle has a 45° maximum steering angle.