Austrian group Econ GmbH, a manufacturer of extrusion peripherals, especially underwater pelletizing systems, pellet dryers, screen changers and pyrolysis furnaces will launch a new laboratory version of the underwater pelletizing system.
Named EUP 10, it is designed for throughputs of 1-15 kg per hour, depending on density and granule size. The nozzle platen can be fitted with one to five nozzles of individual diameters.
Also launching (or re-launching) will be the group’s screen changer, which has been re-designed. The main difference is a patent-pending sealing technology, which is said to be advantageous when processing very low-viscosity plastic melts (e.g. PA, PET).
The unit features a free-flow area on the screen, in which 75% is permanently open for the melt stream, while 25% of the stream is backwashed. This is due to the new screen assembly. The two meshes are located next to one another in each of the two displacement piston units, allowing for a more direct flow in the melt channels. This reduces the back pressure in the melt flow and the associated energy consumption.
Also on display will be the S+L pellet dryer. The dryer is available in four standard sizes for throughput rates from 500 to 10,000 kg/h (based on a bulk density of 0.7 kg/m³). They can be used as stand-alone devices as well as in combination with Econ’s granulation units.