helix II - dies for large diameter pipes

Large-diameter pipe heads – a design & construction challenge

As the market and technology leader in large-diameter PO pipe extrusion, battenfeld-cincinnati has successfully realized numerous projects for lines with pipe diameters of more than 2 m over the last couple of years.

In 2011, the first complete 2.5 m PO pipe extrusion line worldwide was designed and manufactured for a leading European supplier of large-diameter pipes. In 2016, the first PO solid-wall pipe line for 2.6 m pipes was designed and manufactured for a large pipe manufacturer in Asia.

Designing and building large-diameter pipe heads is a huge challenge. For the majority of large-diameter pipes, the most energy-efficient solution is a helix II VSI-T pipe head with the VSI two-step distribution concept. This concept has proven itself in more than 200 dies all over the world.

A melt cooling unit can be integrated into the helix II VSI-T die. This enables a reduction of the melt temperature already in the die and a reduced sagging effect, which is a big advantage in producing pipe with large wall thicknesses and a high line output.

  • Thanks to the two-step concept, the melt is ideally distributed and optimally homogenized.
  • A melt cooling unit enables a reduction of the melt temperature already in the die. This reduces the sagging effect.
  • Excellent pipe quality even at high outputs
  • “Leading solutions” for developing components and tooling which has been proven many times in PO processing
  • Wide range of pipe heads to suit customers’ applications


Please select the language of your choice.

  • Product_Helix_Pipe_Heads_EN.pdf (1 MB)
  • Application_Pipe_EN.pdf (2 MB)