Extrusion International 2-2024-USA

23 Extrusion International 2/2024 New 800 Series Hybrid Extrusion Tooling Announced Guill announced 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 ap- plied 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 thick- ness, plus material and process variations. Additional errors include difficult-to-process materials and demanding 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 incorporate this technology into an updated ver- sion 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 de- sign, low residence time and a com- mon deflector bore that eliminates tolerance stack up. The challengewas to create a hybrid design that incor- porates the benefits of layer over - lapping, while reducing unnecessary complexity and making the technol- ogy more cost-affordable for custom- ers. This was achieved by overlapping layers in each semi-deflector, using a single cone. The highly efficient de - sign of the 800 Series Hybrid reduces cost and size, as opposed to other methods 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 the weld 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. Guill Tool & Engineering www.guill.com Mobile Mixing Container on the Market Launched The CR.MIX mobile mixing con- tainer expands the proven and stan- dardized container product range of Siloanlagen Achberg. The special geometry of the mixing screw al- lows fast and homogenous mixing of free-flowing plastic granulate or regrind. In addition, the high-quali- ty components on the stainless steel container ensure a long lifetime. The mixing container can be used wherever small to medium quan- tities of bulk material need to be mixed. The container is filled as standard via the hinged area of the cover. An inlaid grid is installed there to support bagged goods. To start the mixing process, the hinged cover must be closed and the start button pressed. The mixing process stops by pressing the stop button or auto- matically after an adjustable mixing time. The rollable container can then be moved to the place of use. The main added value lies in the special geometry of the mix- ing screw, which ensures optimum mixing results without an addi- tional outer tube. This offers the advantage that the interior and the mixing screw are very easy to clean. "We've invested a lot of develop- ment work in the mixing screw and its mixing properties," says Manag- ing Director Gerd Maass. Because of the steep hopper and the round container geometry, an optimum material flow is ensured. This means that the ready-mixed bulk material can be almost com- pletely extracted at the lowest point of the hopper using up to two special suction pipes. A sensor-monitored swivel slide is attached to the bottom of the outlet for complete emptying. This, as well as the safety interlock of the hinged cover, is monitored by the control unit, which is mounted on the stainless steel cover of the container. The mixing container is supplied with power via a standard 16 A CEE connection, which is also mounted on the round cover. Siloanlagen Achberg GmbH & Co. KG www.achberg.com Mobile mixer for plastic bulk materials (Photo source: Siloanlagen Achberg)