The gantry design has prevailed here. All linear axes are mounted at the top and are thus subject to almost no dirt accumulation. At the same time, the large bearings of the axes of rotation can be integrated in the machine base body. In this way, a maximum stiffness is achieved thanks to the design and YRT bearings. If you look closely at a gantry, it offers optimal chip removal, almost without rinsing. The funnel shape of the interior makes this possible. In this case, cast steel is used as a homogeneous building material in order to ensure uniform thermal behaviour. Today, one often hears of so-called mineral casting. This should be thermally even better than cast steel. But is it really? In this case, however, it is repeatedly “concealed” that you then have to screw linear guides made of steel onto this mineral casting (synthetic resin + concrete). That is to say, two materials with two different coefficients of expansion meet one another. Tensions arise between the two materials. The expansion advantage is thus eliminated.

Then why is mineral casting still used? The answer is in the price! The production costs are only ¼ as high as in the case of cast steel. Do you get this price advantage from the machine manufacturers, or does the shareholder get this price advantage?
POS relies on cast steel for technical reasons in order to be technically optimally positioned.

At 20 tons, it is massive like no other. It has been constantly evolving for 14 years and thus forms the basis for all POS machines. Simply a machine with a lot of safety reserves.