
The high-speed 34D-long single screw extruders with a screw di-ameter of 75 mm reach outputs of up to 1.8 t/h and operate with screw speeds of up to 1,500 rpm. This is how the high outputs can be achieved with a small machine size, and with optimal melt at-tributes too. The extruders are used for PP, PS, APET, CPET, PLA and PE processing as well as in PC sheet lines.
Based on extensive field experience and latest findings from laboratory tests, battenfeld-cincinnati has now developed an adiabatic high-speed extruder with virtually optimal energy efficiency. This new process technology has made it possible to reduce energy consumption by yet another 10 % compared to the previous high-speed models, which already use 25% less energy than conven-tional extruders with the same output rates. After this high-speed model was presented at the K 2013 for the first time, the pilot machine has now been in operation in production for several months. This machine is laid out for a medium output range of 800 kg/h (900 kg/h for PP and PS). In addition to its low energy consumption, the processing machine stands out by an extremely low noise level in operation and a 10 % higher specific feed rate. Apart from the advantages already mentioned, the machine's heat emission to its environment has also been reduced considerably by the new process technology concept. This significantly improves production conditions, especially during the summer months.