Multi-resin Dryerless Systems

The SGTSE MultiRESN™ model is not new to the product line, as it has been in production for a little over two years now. Improvements have been implemented over time to meet industry demands and processing capabilities.  Originally established and operating as a 90mm 50/LD, 430 hp oil cooled, co-rotating twin screw in PTi’s Technology Development Center (TDC), the SGTSE MultiRESN™ has proven to be unwavering in power and versatility, without compromise to the HVTSE® standards of efficiency.   Maintaining the premise of fully intermeshing co-rotating, self-wiping screws, with high vacuum venting for the elimination of the crystallizing and drying processes, the SGTSE MultiRESN™ outperforms other twin-screw technology in terms of operating performance, energy efficiency, and sustainable utilization of resources.

Capable of processing a variety of virgin, post-consumer, post-industrial resins and flake, including PET, PLA, PP, PS, PE and other unique blends, without first having to crystallize, dry or change screws, the SUPER-G® Twin Screw Extruder with Multi-Resin capabilities offers significant advantages to a processor. Capital equipment needs, floor space, logistics, associated labor and energy usage are minimized or eliminated with dryerless technology. The added capability to process a multitude of resins on one extrusion system leads to greater versatility and opportunities for the processor to meet consumer demands.  

The SGTSE MultiRESN™ speaks to processor sustainability goals and standards in terms of energy efficiency and resource management.  Energy efficient designs target sensible production rate ranges well suited in today’s production environments, with increased efficiency ratings of over 20%. The newly configured square barrels design heats up faster with higher heater-to-barrel mass density ratios vs that of round barrel counterparts, resulting in heat-up times reduced by as much as 30%.  Resins (pellet, flake, and process scrap) can be immediately introduced into the process without drying, further saving energy while utilizing the most available resources.  Furthermore, the starve fed system means blends, colors, and quick change overs can be accomplished on the fly and in as little as 20 minutes reducing downtime, maintenance and startup times.