VG variable-geometry feedblocks
Coextrusion feedblocks with external adjustment of flow geometry and individual-layer distribution.
Represented in Vietnam by Song Song

Overview
Product details
Adjust the convergence of polymer streams
The VG movable-vane design provides external adjustment to account for changes in layer structure and flow conditions. This allows the process setup to be tuned while the line is operating, within the scope of the selected feedblock design.
Fine-tune layer uniformity
Distribution pins provide a further adjustment at the point where polymer layers converge. They allow a selected stream to be profiled where differences in viscoelastic behaviour affect layer uniformity. The feedblock is engineered for the intended polymers and structure.
Configuration note. Layer count and adjustment arrangements are project-specific. Confirm compatibility with the polymers, extrusion throughput and die.
Technical information
Specifications
Discuss your product, material and production requirements with Song Song.
- Design
- Variable geometry
- Adjustment features
- Movable vane and distribution pins
- Published layer configurations
- 2 to 13 or more
- Process
- Multilayer coextrusion
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Discuss VG variable-geometry feedblocks with Song Song
Tell us about your application and production requirements.