Extrusion International 5-2019

59 Extrusion International 5/2019 ProTec Polymer Processing GmbH www.sp-protec.com K 2019: Hall 9, Booth D60 various smart energy-saving systems: drying air volume is automatically adapted to actual throughput while re- generation cycles are controlled on the basis of the actual water content of the pellets. Boosting throughput with high-speed retrofit for LFT pultrusion lines: A simple high-speed retrofit can noticeably boost output volumes on an LFT pultrusion line for high quality long fiber reinforced thermoplastic pellets. The production speed of existing systems can be distinctly boosted from 30 m/min to 50 m/min by various modifications and addi- tions. For instance, ProTec has incorporated an additional pre- heater and optimized die geometry, so accelerating fiber temperature adjustment and ensuring high quality fiber impregnation even at high production rates. Cooling ca- pacity was also increased with an additional water bath. ProTec has also made adaptations to the pelletizer. Care- fully arranged rotary knives cut the pellets at high speed to the ideal processing length of 6-12 mm. Handling materials efficiently with Batchmix batch dosing units and RDM resin dryers: As a one-stop shop materials handling supplier, ProTec will be showing the Batchmix 50 and Batchmix 350 batch dosing units from its SOMOS series of the same name. There will also be live demonstrations of the SOMOS RDM-40 mobile resin dryer, whose primary application is as a variable auxiliary unit for processing machines. Flexible Batchmix batch dosing units for as many as twelve components: The versatile modular SOMOS Batchmix series of gravi- metric batch dosing units is available in fourteen sizes for throughputs ranging from 5 to 3,000 kg/h. The smallest unit with its throughput of up to 50 kg/h can dose four components while, depending on size, further mod- els can process up to twelve flowable materials at once. Specially developed high precision dosing devices mean these models are capable of quickly, accurately and re- producibly manufacturing a variety of changing pellet and regrind blends. The SOMOS Batchmix is operated using an intuitive, high performance touchscreen controller which, thanks to its integrated communication interfaces, is simple to inte- grate into higher-level control systems. Retrofittable op- tion packages further extend functionality. For example, extruders and film haul-off controls can be integrated into the controller. SOMOS RDMmobile dryers: SOMOS RDM series mobile dryers, capable of reliably and energy-efficiently drying any hygroscopic materials, sim- plify frequent material changes on processing machinery. They are also capable of automatically supplying pellets to machines by dry air conveying, so enabling convenient remote process monitoring. The SOMOS RDM series con- sists of five models with bin volumes of between 50 and 400 liters. The SOMOS RDM series mobile resin dryers, the photo showing the SOMOS RDM-70/200, can be used as a variable auxiliary unit for processing machinery