troisdorf, september 2015  producers of films for yoghurt cups, trays and similar products can immediately benefit from the innovative polishing stack technology of reifenhäuser cast sheet coating the engineers of the machinery company have developed their hitherto most successful mirexmt polishing stack further and brought to market a new model type named mirexmths. thanks to the mechatronic gap adjustment, this new series too, works highly precisely and fully automated as adjusted at the 24&rdquo operation touch panel installed directly at the polishing stack. the vertical roll arrangement and smaller roll diameters in a range between 310 and 510 mm make it an optimal solution mainly for the production of polystyrene, polypropylene and barrier films with output capacities from 400 kgh to about 1,200 kgh.the first extrusion line equipped with the new mirexmths polishing stack design was shipped by reifenhäuser cast sheet coating to a european customer at the end of may. the line featuring a capacity of 800 kgh will produce 0.4 to 1.6 mm thick pp films in a finished width of up to 850 mm. for this kind of films it is common practice to use polishing stacks of a spacesaving vertical roll arrangement. due to the fact that the normally used hydraulic roll seton system was replaced with a mechatronic system in the mirexmths polishing stack, the customer is able to produce also under clean room conditions. this is increasingly demanded by the food industry.in addition, the reproducible adjustment of the mechatronic system enables the customer to produce optimum quality in a very short time after product changeover &ndash independent of the line operator&rsquos skills. philip neumann, sales director at reifenhäuser cast sheet coating says &ldquothe market of our customers is highly competitive so that margins are low. therefore, the cost advantage achieved through fast production of quality products after startup of the line or after product changeover was the crucial argument for our customer to buy the system from us with our unique and patented mt technology.&rdquothe second model type of mechatronic polishing stacks was highly accepted when it was introduced into the market. mr neumann says &ldquothis design too, will replace polishing stacks working with hydraulic roll seton systems. already now, shortly after it has been launched, we have several orders in place.&rdquo the third model type of polishing stacks using a mechatronic roll seton system will be presented by reifenhäuser cast sheet coating still this year so that in the medium term all polishing stacks will consistently be changed to the new mt technology.
