In this solution a Prorunner mk1 vertical conveyor and a Prorunner mk5 vertical conveyor are combined to handle both large and small products. If the system needs to handle large products only the Prorunner mk1 is activated. If handling of smaller products is needed – at higher throughput – the belt of the Prorunner mk1 is used as an indexing belt conveyor to feed the Prorunner mk5 vertical conveyor.