Guill said today it has added a new version of its 800 series extrusion tooling.

Engineers at Guill developed the 800 Series Hybrid to overcome challenges that can occur in some extrusion applications.  For example, in some applications that use 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. Other errors include difficult-to-process materials and demanding applications where there is zero fault tolerance.

The challenge was to create a hybrid design that incorporates the benefits of layer overlapping while reducing unnecessary complexity and making the technology more affordable. The company overlapped layers in each semi-deflector, using a single cone. Benefits of the 800 Series Hybrid, which result in improved concentricity, include:

• Eliminating weld lines in materials.
• Reduced sensitivity to changes in viscosity and to changes in line speed.
• Expanded material and multi-layer application possibilities.
• The ability to work in all tubing and jacketing applications with a wide range of materials.
• Low residence time.
• Compact design.
• Low tolerance stack-up error factor.