Extrusion International 4-2025-USA

22 Extrusion International 4/2025 INDUSTRY NEWS New 800 Series Hybrid Extrusion Tooling Announced Guill Tool & Engineering an- nounced the introduction of a new version of its popular 800 series, known as 800 Series Hybrid. In some extrusion applications that utilize crossheads and inlines, layers of the exact same material are applied multiple times, using a single die. This method is used to reduce the propensity for errors caused by gels breaking through a thin wall, weld lines, inconsistent wall thickness, plus material and process variations. Additional errors include difficult- to-process materials and demand- ing applications where there is zero fault tolerance. Seeking to design the next gen- eration multi-layer die to overcome these challenges, the engineers at Guill looked for a way to incorpo- rate this technology into an up- dated version of the 800 Series. This led to the creation of the 800 Series Hybrid. The inherent benefits of the 800 Series are retained, including compact design, low residence time and a common deflector bore that eliminates tolerance stack up. The challenge was to create a hybrid design that incorporates the ben- efits of layer overlapping, while re - ducing unnecessary complexity and making the technology more cost- affordable for customers. This was achieved by overlapping layers in each semi-deflector, using a single cone. The highly efficient design of the 800 Series Hybrid reduces cost and size, as opposed to other meth - ods of overlapping layers. Essential benefits of the 800 Se - ries Hybrid include eliminating weld lines in materials through patented overlapping technology, producing a more consistent finished product; reduced sensitivity to changes in vis- cosity; reduced sensitivity to chang- es in line speed; myriad material and multi-layer application possibilities; works in all tubing and jacketing applications with a wide range of materials; low residence time; com- pact design and a low tolerance stack-up error factor, all resulting in improved concentricity. The 800 Series Hybrid extrusion tool greatly reduces stagnation, be - cause overlapping layers are more inherently balanced than single layers and also because each semi- deflector is “tuned to flush.” Con - ventional deflectors must simulta - neously achieve a balance between flushing, balancing and eliminating theweld line. There is less difference between the slowest moving mate- rial and the fastest moving material in the deflector channels, thus mak - ing the viscosity more consistent in the deflector. Single-Point Concentricity Extrusion Tooling Guill Tool introduces a new sin- gle-point concentricity extrusion crosshead that uses micro-fine ad - justment screws for precise concen- tricity adjustment. The precision of concentricity reaches 0.008” or finer per revolution. This single point concentricity adjustment is a unique Guill innovation for the extrusion of thin-walled jacketing and precision ID/OD tubing. One adjustment bolt controls 360° of adjustment. Features of the single-point cross- head include a patented cam-lock deflector for quick changeovers, with a residence time of one minute at .5 lb/hr material flow, optimized usage with extruders measuring ½” and ¾”, and a max die ID of .250.” Additionally, the Guill single-point crosshead offers great flexibility to its users. It not only accepts both vacuum and micro-air accessories, but is also ideal for pressure and sleeving applications. Fluoropoly- mer designs are available upon re- quest. For more information: Guill Tool & Engineering Tom Baldock, Sales Manager www.guill.com, sales@guill.com