SUPER-G® Twin Screw Extrusion MultiRESN™ System
True multi-resin system, PTi offers self wiping screw technology resulting in quick product changeovers.
Dosing/Blending
Precise feeding and blending of the component materials is key to the success of the SGTSE® process. Unlike single screw extruders, the twin screw extruders are starve fed.
This means that the amount of material delivered onto the flights of the screws is directly related to Gravimetric process feeders are used to control not only the total volume of material flow, but multiple units are used in conjunction to accurately and precisely control different percentage combinations or blends of materials. These can be major or minor components of the overall total of material being extruded. Frequently the bulk densities of these individual components vary greatly from material to material and from product to product. The use of individual vibratory feeders insures that the materials are delivered onto the amount of extruder output.
For output stabilization and consistency it is imperative that the feeding system is very precise in the amount of material fed into the system the screws accurately regardless of their bulk density and form.
Projected Savings from Reduced Energy Usage
The following chart indicates the different size SGTSE extrusion machines and how much hour usage can save money over time.
The system relies on high vacuum to dry and de-volatilize the material as it is being extruded. These pumps are designed to operate efficiently in environments where highly saturated vapors or particles will be present while providing years of reliable service life.
Polymer Filtration is another key element in the process,particularly for PCR (post consumer recycle) materials that contain higher levels of contaminants that need to be filtered out of the melt stream. This filtration is achieved utilizing a device called a screen changer.
OFFERING YOU THE BEST SOLUTION FOR YOUR EXTRUSION LINE
Processing Technologies International (PTi) is a global leader in high-performance sheet extrusion machinery. Engineered to exact standards, PTi systems feature innovative design solutions that deliver superior equipment performance and consistently produce sheet goods that meet the industry’s highest quality standards.
PTi offers a comprehensive range of products and services designed to support today’s sheet producers and the evolving demands of the future. While this overview highlights many available configurations and capabilities, it represents only a portion of the customized extrusion solutions PTi provides for a wide variety of applications.