Spiral Conveyors are used to bridge height elevations in very tight spaces. Constant conveyor flow is maintained, providing for continuous transport over several floor levels. The system is driven by a proportionally working friction (cam action) wheel drive positioned below the return belt and powered by a 3-phase gear motor. The lateral forces that are unavoidably exerted on the belt due to the curved shape are taken up by spring-mounted pressure elements along the outside radius. Belt turnaround is
accomplished by using cylindrical idler rollers. This makes it possible to achieve close connection to conveyors on either side.
