The Moipu 400 E energy wood harwarder grip is a conventional forwarder equipped with a Finnish feller-buncher head. The felling-head uses a single-action shear, and has neither delimbing knives nor feed rollers. It is mounted on a forwarder's crane and performs both felling and loading. The forwarder forwards the energy wood to the landing. Therefore just one machine - the so-called harwarder - is able to perform the whole thinning operations. The author's aim was to evaluate the productivity and costs of a forwarder equipped with the energy wood harwarder grip Moipu 400 E, cutting coniferous...