One key advantage of this type of automatic baking machines is the extremely robust baking tong chain: The steam pressure produced during the baking process results in many millions of load alternations in the course of its years of productive life, which are all borne by a solid baking tong frame. Even after many years of use the baking plates are quite easy to adjust with a wafer thickness tolerance of just +/- 0.1 mm across the whole surface! Each baking tong is equipped with 4 carrier rollers running on heat-stabilized, low- maintenance ball bearings which are easily regreasable by means of corresponding lubrication nipples.