A mold system for manufacturing wind turbine blades includes two mold halves shaped for molding respective mold halves. A first mold is supported by a hinge system which is capable of moving the mold from a first position wherein the mold faces upwards to a position wherein the first mold faces the second mold. A final linear displacement of the first mold is carried out by actuators which may be integrated with the first or the second mold. The actuators are engaged with the hinge system so that the first mold is displaceable or the hinge system holding the first mold is displaceable. In both alternatives the actuators merely transfer the load of the first mold to a support via the hinge system.