KIRION® Die Heads

• Unique pre-distributor design
• Computer optimised axial spiral mandrel for
  • Short residence time
  • short purging times = fast product change
  • Minimized film gauge tolerances
  • Reduced raw material use
• Designed for high pressure and high output

Air Rings:

• Hurricane style for optimum air flow
• Double as well as single lip air ring inserts
• Improved cooling for high output

Optional Equipment:

• Movable die cart with integrated air distribution system
• Different profile control systems
• Inner gap ring heating
• Outer gap ring heating
• Frequency control for blowers

Pre-distributor - Design and precision
-Binary stack pre-distributor

Advantages for a homogeneous melt pre-distribution
 

• Melt with highest velocity turned into melt with lowest velocity
  • Narrow range of residence-time profile
• Lowest shearing passes over to highest shearing
  • Narrow range of temperature profile

Additional advantages
 

• Small relation of surface to volume
• Low pressure drop
• Good self-cleaning
• Stack-type pre-distributor results in a lower height of the blown film die

Design and precision of the inner die gaps and spiral mandrels
-Axial Spiral Mandrels

Advantages for homogeneous melt distribution
 

• Low opening forces
• High accuracy of the inner die gaps over a wide range of different layer distributions and polymers
• Short confluence of the different layers
• Short joint flow path of the multi-layer flow – Prevention of layer mixing
• Reduction of thermal load on sensitive polymers such as EVOH due to hotter layers like PA
• Nearly same lamination pressure for tie layers
• No 90° diversion after the spiral mandrels
• Prevention of layer mixing