The invention relates to a conveying system comprising a conveyor rail configured for conveying heat sources for aerosol-generating articles. The system further comprises a heat source detector configured to detect heat sources conveyed by the conveyor rail. The system further comprises a moving actuator. The moving actuator is configured to move the conveyor rail in a direction perpendicular to the conveying direction. The moving actuator is configured to move the conveyor rail if the heat source detector detects absence of heat sources for a predetermined time.

A device for aligning products which includes an infeed station, to which the products are fed in a loose fashion, an outfeed station, from which the products come out aligned in at least two rows side by side and parallel, at least two conveyor belts, positioned alongside and parallel to each other in a conveying plane, between the infeed station and the outfeed station, and movable in a conveying direction, and a first panel, positioned centrally between the belts and extending along the conveying direction; and wherein the first panel is movable between a raised position, where the first panel protrudes from the conveying plane, and a lowered position, where the first panel is recessed in the conveying plane.