HELIBAR® is the base line extrusion unit which combines all these advantages. Helix has been designing and manufacturing several thousands of HELIBAR® units which operate successfully in the plastics industry.

• Energy savings
  The use of HELIBAR® technology reduces the total energy consumption per kg product by 10–25 %.
• Output
  Using a HELIBAR® barrel and screw combination the output of your single screw extruder can be improved by 20–100 %.
• Lower Melt Temperature
  With HELIBAR® the melt temperature is reduced.
• Less wear on barrel and screw
  There is a drastic reduction of wear on a HELIBAR® unit.
• Pressure Stability
  It is typical of HELIBAR® that up to a die pressure of 800 bar the output will be completely stable. Over the whole range of rpm the specific output is constant.

How does Helibar® do this?

• Thinner melt film and improved heattransfer
  The interaction between barrier screw and grooved barrel results in a thinner melt film. Therefore the heat from the heaterbands gets to the solid fraction easily.

• Pressure build-up in the melting zone
  Higher shear forces in a thinner melt film allow a pressure build-up in the melting zone which leads to an entirely different pressure curve. This effect is supported by gripping of the solid fraction on the groove edge. It results in a high process stability and avoids surging.

• HELIBAR® pressure curve
  The maximum pressure in the feed zone is dramatically reduced. Thus, wear on barrel and screw is strongly reduced.

• Energy efficiency
  High specific output at a low pressure level reduces the melt temperature. The energy of the heaterbands is fully used for melting the polymer. A cooling of the feed zone and a thermal separation between feed zone and plasticating zone is not needed.

  Compared to conventional extruders HELIBAR® has a much better energy use