The Logo series of vehicles from Doll Fahrzeugbau are made to haul long, heavy timber. Doll’s truck are both trailers and machines.

They are designed for timber picking, loading and transporting.
The system involves a truck cabin that rotates a full 300 degrees allowing the operator to stay in truck during use.

A hydraulic barrier in the bed of the truck keeps stack of timber from falling off. The barrier can contract and expand to fit more logs.