Extrusion International 4-2021

27 Extrusion International 4/2021 Rotary Extrusion Dies with 2X Increase in Speed „ Guill Tool announced a new design for its high-production rotary models, both inline and crosshead style. A 2X increase in speed, with models running to 1000 RPM depending on the application, are now available in the Guill line of pat- ented rotating tip & die designs. By rotating the tooling in relation to the material fl ow, a rotary head increases the wall strength of an extrusion, thereby allowing a thinner wall with less material and the corresponding cost savings for Guill Tool & Engineering Co., Inc. www.guill.com the user. Typical applications for rotary heads include medi- cal and multi-lumen tubing plus various high-end extrusions with interlocking layer or multiple striping requirements. Features offered on these new rotating extrusion dies in- clude counter-rotating tip & die, co-rotating tip & die, rotat- ing die with conventional tip, rotating tip with conventional die, crosshead or inline, multi-layer, striping, certain pro fi les and optional quick-change cartridges that minimize cleaning downtime. By using rotary dies, extruders can realize a cost savings due to the elimination of secondary processes, cosmetic enhance- ment of the end product with the elimination of weld or part- ing lines, plus reduction or complete elimination of ovality. Guill Tool offers its new high-speed rotary models as turnkey packages, complete with die cart, tools and all accessories for installation and maintenance. „ Guill Tool announced the immediate availability of its new die cart with easy disassembly and reassembly. It features a high volume, adjustable center accumulating crosshead. This crosshead is designed to produce a smooth linear bore and provide jacketing over various substrates. The crosshead’s maximum thru core is 18,” while its’ maximum die ID is 23”. Built to handle thermoplastic applications, the crosshead in- cludes tooling and isolation sleeve design. Additionally, the tooling section features quadrant heating. Guill’s crosshead stand is equipped with an integral align- ment station and concentric role guide. The stand is also an integral cleaning station, so clients don’t need to remove the crosshead for cleaning. Lastly, this crosshead has “on-the fl y” catenary adjustment and can be easily maintained with simple hand tools. “Micro Medical” Extrusion Tooling „ Guill Tool & Engineering introduced the newMicroMedical, an extrusion crosshead that usesmicro- fi ne adjustment screws for precise concentricity adjustment. The precision of concen- tricity reaches 0.008” or fi ner per revolution. This single point concentricity adjustment is a unique Guill innovation for the extrusion of thin-walled and precision ID/OD medical tubing. One adjustment bolt controls 360° of adjustment. Features of the Micro Medical crosshead include a patented cam-lock de fl ector for quick changeovers, with a residence time of one minute at .5 lb/hr material fl ow, optimized us- age with extruders measuring ½” and ¾”, and a max die ID of .250.” Additionally, the Guill Micro Medical crosshead offers great fl exibility to its users. It not only accepts both vacuum and micro-air accessories, but is also ideal for pressure and sleev- ing applications. Fluoropolymer designs are available upon request. Large Die Cart with Crosshead Introduced Theheadon cart