A horizontally stacked hemming press includes a horizontally disposed base. The heat exchanger includes a radiator, a regenerator, and a heater. The first and second strips are nested with one another. Embodiments of this check stand may have an output module that is a carousel or a turntable. An airflow actuating device is utilized to generate a primary forced airflow within the upper chamber which is substantially parallel to the surface plane of the second PCB.