The spiral belt conveyor is a conveyor belt system for transporting articles vertically along a helical path. The spiral belt conveyor includes a platform and a central frame structure extending upwardly from the platform. Two idler rollers are mounted on the platform. A helical track having an inner portion and an outer portion is concentrically disposed around the shaft. The inner portion of the helical track has a first radius, and the outer portion thereof has a second radius greater than the first radius. An upper end of the inner portion of the helical track meets an upper end of the outer portion of the helical track adjacent an upper end of the central frame structure. A conveyor belt is mounted on the helical track and the pair of idler rollers.