A fiber block molding apparatus for molding a heated three-dimensional fiber block article from a fiber blank comprising a thermally activated binding agent, the apparatus comprising: - a mold, the mold having a lower part and an upper part, wherein the lower and the upper parts of the mold form between them a cavity for forming the fiber blank into the fiber block article upon closing the mold; - a heater for heating the fiber blank before molding it to activate the binding agent; - a conveyor system for receiving the fiber blank to be molded at a receiving position, transporting the fiber blank via the heater for activation of the binding agent, and delivering the heated fiber blank into the lower part of the mold at a delivery end of the conveyor system, wherein the delivery end is arranged on a vertically higher level than the lower part of the mold and at the opposite side of the heater relative the receiving position; - a horizontal position shifting arrangement for shifting the horizontal position of the delivery end of the conveyor system relative to the lower part of the mold between a first and a second position, wherein the delivery end of the conveyor system is, in the first position, located between a distal end and a proximal end of the lower part of the mold, and wherein the delivery end of the conveyor system is, in the second position, located closer to the proximal end than to the distal end of the lower part of the mold, but not between the proximal end and the distal end; and - a fiber blank laying arrangement arranged to feed the heated fiber blank from the conveyor system at the delivery end in co-ordination with the horizontal position shifting arrangement shifting the relative position of the delivery end from the first position to the second position to lay the heated fiber blank on the lower part of the mold. - a mold, the mold having a lower part and an upper part, wherein the lower and the upper parts of the mold form between them a cavity for forming the fiber blank into the fiber block article upon closing the mold; - a heater for heating the fiber blank before molding it to activate the binding agent; - a conveyor system for receiving the fiber blank to be molded at a receiving position, transporting the fiber blank via the heater for activation of the binding agent, and delivering the heated fiber blank into the lower part of the mold at a delivery end of the conveyor system, wherein the delivery end is arranged on a vertically higher level than the lower part of the mold and at the opposite side of the heater relative the receiving position; - a horizontal position shifting arrangement for shifting the horizontal position of the delivery end of the conveyor system relative to the lower part of the mold between a first and a second position, wherein the delivery end of the conveyor system is, in the first position, located between a distal end and a proximal end of the lower part of the mold, and wherein the delivery end of the conveyor system is, in the second position, located closer to the proximal end than to the distal end of the lower part of the mold, but not between the proximal end and the distal end; and - a fiber blank laying arrangement arranged to feed the heated fiber blank from the conveyor system at the delivery end in co-ordination with the horizontal position shifting arrangement shifting the relative position of the delivery end from the first position to the second position to lay the heated fiber blank on the lower part of the mold.