Dosing system for viscous to highly viscous adhesives and sealants
At Achema 2018, the Fulda-based German company Uth GmbH has presented a new solution for feeding and exact dosing of viscous to highly viscous polymers as well as adhesive and sealants. The continuous polymer dosing system enables the feeding, plasticising and dosing of mixing components with different types and shapes. Based on the modular designed roll-ex system, it is composed of a gear pump combined with a suitable feeding unit like a single screw extruder or conical twin screw extruder. According to the manufacturer, this dosing solution guarantees an easy handling and also offers the prerequisites for simple process integration.
In addition, Uth presented the roll-ex MDSE (mixing conical twin screw extruder) for silicone compounding. This product offers an integrated solution for the mixing of silicone rubber compounds as well as elastomers of low viscosity and the subsequent shaping of feed strips or blanks. Complementary to this process the material can be passed onto a connected downstream device such as a gear pump or single screw extruder and connected strainer head for straining applications. Simple cleaning as well as mixing under vacuum are particularly beneficial for the production of final compounds, said the company.