Extrusion International 5-2019

PREVIEW 72 Extrusion International 5/2019 Busch Vakuumpumpen und Systeme www.buschvacuum.com K 2019: Hall 9, Booth E23 the demand-dependent control and the option to adjust the vacuum level precisely to the material to be extrud- ed, the extruder and the temperature conditions, it is possible to reproduce product quality without having to readjust the vacuum level manually via valves during the process. Plastex vacuum systems are available in dif- ferent configurations and sizes. They are suitable for both compounds and master batches. They can be used to degas polyolefins such as PP/PE, EVA, PBT, ABS, EVOH or POM. Even the degassing of recycled material does not pose a problem for Busch’s new Plastex vacuum systems. A flushing device allows to clean the vacuum pump after or during the process. It is also possible to program the cleaning intervals and the dosing of the clean- ing agent. The new Plastex vacuum systems’ control system also permanently monitors the condition of the filters and separators and immediately in- forms the operator via the display or extruder control system if, for ex- ample, a filter needs to be cleaned or condensate needs to be drained from the after-separator or the con- densate collection container. The op- erator therefore always has an over- Busch Vacuum Pumps and Systems will present the latest generation of Plastex vacuum systems for extruder degassing for the first time at K 2019. The new Plastex vacuum systems can be programmed and monitored via a display. They are fully connected in order to exchange data with the extruder control system and can be operated directly via the extruder. The fact that all components are con- nected means that Plastex vacuum systems are ready for Industry 4.0. The degassing system is controlled as required by a frequency-controlled drive motor. This means that the pro- grammed vacuum level is precisely maintained – the energy saved in the process is a further benefit. In recent years, Plastex vacuum sys- tems have become widely estab- lished for degassing the melt in the screw zone of extruders. The model presented at K 2019 is equipped with a Mink claw vacuum pump. These vacuum pumps operate dryly, i.e. they do not require any operating fluids such as water, which can lead to high costs for treatment and dis- posal. With the new generation of Plastex vacuum systems, Busch now impress- es with further benefits. Thanks to view of all operating parameters. Any necessary action steps are im- mediately displayed to the operator. This increases reliability, simplifies operation and minimizes mainte- nance costs. Busch’s Mink claw vacuum pumps have not only established themselves in the degassing of the melt during extrusion; this vacuum technology has also become the state of the art for pneumatic material feeding. Busch will present the latest develop- ment in Mink claw vacuum pumps at the trade show booth: the Mink MV 0600 B is equipped with a frequency- controlled drive motor as standard and can therefore adapt the pump- ing speed to the actual requirements. This means that not only can the material be transported as gently as possible, but further energy and cost savings are also possible. New Generation of Extruder Degassing Systems The new generation of Plastex vacuum systems for extruder degassing is ready for Industry 4.0 (Picture: Busch Vacuum Pumps and Systems)