Extrusion International 2-2022

26 Extrusion International 2/2022 INDUSTRY NEWS New 800 Series Hybrid Extrusion Tooling Announced „ Guill announces the introduction of a new version of its popular 800 series, known as 800 Series Hybrid. In some ex- trusion 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 er- rors causedby gels breaking through a thinwall, weld lines, in- consistent wall thickness, plus material and process variations. Additional errors include dif fi cult-to-process materials and de- manding applications where there is zero fault tolerance. Seeking to design the next generation multi-layer die to over- come these challenges, the engineers at Guill looked for away to incorporate this technology into an updated version of the 800 Series. This led to the creation of the 800 Series Hybrid. The inherent bene fi ts of the 800 Series are retained, including compact design, low residence time and a common de fl ector bore that eliminates tolerance stack up. The challenge was to create a hybrid design that incorporates the bene fi ts of layer overlapping, while reducingunnecessary complexity andmak- ing the technology more cost-affordable for customers. This was achieved by overlapping layers in each semi-de fl ector, us- ing a single cone. The highly ef fi cient design of the 800 Series Hybrid reduces cost and size, as opposed to other methods of overlapping layers. Essential bene fi ts of the 800 Series Hybrid include eliminating weld lines inmaterials through patented overlapping technol- ogy, producing a more consistent fi nished product; reduced sensitivity to changes in viscosity; 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; compact design and a low tolerance stack-up error factor, all resulting in improved concentricity. The 800 Series Hybrid extrusion tool greatly reduces stagna- tion, because overlapping layers aremore inherently balanced than single layers and also because each semi-de fl ector is “tuned to fl ush.” Conventional de fl ectors must simul- taneously achieve a balance between fl ushing, balancing and eliminating the weld line. There is less difference between the slowest moving material and the fastest moving material in the de fl ector channels, thus making the viscosity more consistent in the de fl ec- tor. NewHigh-Output Pulverizer Expands Capacity for PVC Extruder „ The installation of a newly launched Pallmann PKM800 pul- verizing system has enabled a leading manufacturer of PVC extrusions to expand capacity. The new pulverizer from Pall- mann Industries, a leading global supplier of size reduction equipment for the plastics industry, delivers greater through- put, increased productivity, reducedmaterial cost, and greater cleanliness for products made of PVC. In response to the booming building and constructionmarket, the PVC extruder needed to boost capacity to meet growing demand. The high-performance PKM800 pulverizer converts PVC scrap and delivers 2000 lb/hr of recycled PVC at 20 mesh (840 micron) particle size. These recycled powders are mixed with virgin PVC material and are re-entered into the pro fi le extrusion process. The PKM800 pulverizer outperforms the previous competi- tive model by 2 to 1 in terms of production, according to Jeff Taylor, vice president of sales for Pallmann Industries. “We’re thrilled we could supply a key customer with a cost-effective solutionwithminimal energy requirements andmaintenance, while at the same time providing a cleaner work environ- ment,” said Taylor. The PKM800 is safer and cleaner than competitive models thanks to a pulse jet enclosed bag housing that contains the dust. Unlike typical hanging fi lter bag plenums, the PKM800 blows air and discharges the dust downward into a container. The pulverizer also delivers uniform particle size distribution for production of more intricate and detailed pro fi les. High- quality powders can be produced and blemishes and pits are reduced in fi nished parts. The PKM800 pulverizer features “segment” cutting technol- ogy which provides different serrations for different applica- tions, unlike grinding rings which have limited serrations due to narrow inlet tooth distances. Segments offer a real scissor- cut action, affording better utilization of cutting energy, less heating, reduced fi nes, and adaptability tomany materials. Pallmannpulverizers aremadeof strongweldments insteadof standard castings and thus provide exceptional durabilitywith many pulverizing systems boasting over 30 years of service. Pallmann Industries www.pallmannindustries.com Guill Tool & Engineering www.guill.com