A production line for manufacturing wound core components of dynamo electric machine, the production line comprising: - a central processing zone comprising at least a winder for winding coils to produce wound core components; - a downstream processing zone for finishing the wound core components; the production line being characterized in that it further comprises: - a first load and unload device arranged to transfer the core components to be wound to at least a winder from a waiting position , or from an upstream transport carrier located at a first position (G), wherein the upstream transport carrier is arranged to transfer core components to be wound from an upstream processing zone ; and - the first load and unload device arranged to transfer wound core components from the at least a winder to a downstream transport carrier located at a second position (A), wherein the downstream transport carrier is arranged to transfer wound core components to the downstream processing zone ; wherein the upstream transport carrier is arranged to move with alternative backwards and forwards motion on a same travel stretch between the upstream processing zone , and the central processing zone , and the downstream transport carrier is arranged to move with alternative backwards and forwards motion on a same travel stretch between the central processing zone and the downstream processing zone ; or wherein the upstream transport carrier is arranged to move on a recirculation travel conveyor between the upstream processing zone and the central processing zone , and the downstream transport carrier is arranged to move on a recirculation travel conveyor between the central processing zone and the downstream processing zone . - a central processing zone comprising at least a winder for winding coils to produce wound core components; - a downstream processing zone for finishing the wound core components; - a first load and unload device arranged to transfer the core components to be wound to at least a winder from a waiting position , or from an upstream transport carrier located at a first position (G), wherein the upstream transport carrier is arranged to transfer core components to be wound from an upstream processing zone ; and - the first load and unload device arranged to transfer wound core components from the at least a winder to a downstream transport carrier located at a second position (A), wherein the downstream transport carrier is arranged to transfer wound core components to the downstream processing zone ; the upstream transport carrier is arranged to move with alternative backwards and forwards motion on a same travel stretch between the upstream processing zone , and the central processing zone , and the downstream transport carrier is arranged to move with alternative backwards and forwards motion on a same travel stretch between the central processing zone and the downstream processing zone ; or wherein the upstream transport carrier is arranged to move on a recirculation travel conveyor between the upstream processing zone and the central processing zone , and the downstream transport carrier is arranged to move on a recirculation travel conveyor between the central processing zone and the downstream processing zone . <EOS>