Extrusion International 2-2020

46 Extrusion International 2/2020 COOLING TECHNOLOGY – CASE STUDY Great success for companies often comes with great chal- lenges: For DRS, several favourable events occurred in 2019, and in the end the pipe manufacturer more than doubled its production output. A breathtaking develop- ment, recalls managing director Andreas Seibel. Whereas DRS previously operated six extrusion lines with an out- put of 300 to 400 kilograms per hour, six new lines with 900 to 1,000 kilograms each were now to be added. Fur- thermore, the machine park was expanded to include a new injection moulding machine with a clamping force of 200 tonnes and a new re-granulation system. The right partner to starting a major project with While negotiations with their new customer orders were still underway, DRS began their search for reliable part- ners to implement the expansion measurements. They could clarify the spatial situation at short notice because they were offered a neighbouring plot of land including suitable commercial property. Immediately afterwards, the issue of cooling came up. With only the existing re- frigeration systems, DRS would not have been able to supply the new production under any circumstances. “We have made a very conscious decision for the new step in our business development, and thus we carefully selected our suppliers,” reports Seibel. He already knew Reisner cooling systems from previous professional stations, both from the user’s point of view and through recommenda- tions of his customers. Nevertheless, he asked for several comparative offers: “We had high demands on the cool- ing technology. With the dimensions and the foreseeably complicated schedule, consulting, conception and finally project management were also important issues. That’s why we invested a lot of time and intense thoughts into selecting the best offer”. The Reisner concept has convinced Seibel in several re- spects, especially because the refrigeration specialists from Holzwickede analysed the production beyond their own field and included the overall situation: “Reisner was In the energy-intensive business of plastics extrusion, producing companies welcome every opportunity to keep electricity consumption and operating costs in check. Refrigeration technology offers an effective adjustment screw: with the right system, considerable amounts can be saved in short term. Themore accurate a refrigerationmatches its production surroundings, the stronger the effect. DRS Deutsche Rohrwerke SachsenGmbH, a pipe extrusion specialist in Bautzen/Germany, are currently delighted about the perfect solution they have found. Their latest expansion project has resulted in a huge new requirement for cooling capacity. This demand is now covered by a container cooling systemdesigned and manufactured Reisner Cooling Solutions GmbH – 100%reliable and at the same time astonishingly economical Strong Cooling Power, Low Cost Cooling system container and dry coolers are placed between the new silos on the DRS outdoor area, where they are well protected Thanks to theReisner container, DRSdoes notwasteany valuable space inside their newproductionhall Smart Reisner Refrigeration System for New DRS Pipe Extrusion Plant