PTFE Extruders

PTFE extruders are used to form the high-performance plastic polytetrafluoroethylene into defined shapes – primarily hoses, profiles, and insulation. Because PTFE behaves differently than typical thermoplastics, the extrusion process is also specially adapted.

Typical areas of application


1. Medical technology

  • Manufacturing of catheter tubes
  • Micro-tubes for minimally invasive procedures
Coated guide wires: Precision, purity, and biocompatibility are crucial here.

2. Cable and electrical engineering

  • Insulation of cables (e.g. in aviation or medical devices)
  • High-frequency cables
PTFE is an excellent electrical insulator and heat resistant.

3. Chemical and laboratory technology

  • Hoses for aggressive media
  • Seals and profiles
Because of its extreme resistance to almost all chemicals.

4. Industry and mechanical engineering

  • Sliding profiles and bearings
  • Sealing tapes
  • Special coatings

Special feature of the PTFE extrusion process

Unlike conventional plastics, PTFE is not simply melted and extruded because it does not exhibit normal melt flow. Instead, the following methods are used:
  • Paste extrusion (cold extrusion): PTFE powder is mixed with a lubricant and pressed.
  • subsequentsintering (heating), to achieve the final strength
This makes PTFE extruders technically more specialized than standard extruders.

In short:

PTFE extruders are used wherever highly resistant, low-friction and biocompatible components in exact shape are needed – especially for hoses, cable insulation and precision parts.

These are the technical details of our advanced PTFE paste extruder:

  • Extrusion cylinder
    length: up to 3000 mm
    standard diameter: 64mm
    compression stroke: 75t
  • cylinder can be changed, further available diameters: 42 - 80 mm
  • Loading volume: 3 x preform according to cylinder length
  • Mandrel bar adjusted to mandrel bar of preform press
  • Working height: 1350mm
  • Drive:
    hydraulic cylinder with combination sealing gasket
    valves Bosch/Rexroth
  • Extruder head:
    made from special material
    opening / closing - clamping and panning hydraulically controlled.
  • Mandrel bar adjustment: through regulated spindle drive with shaft joint with position acquisition.
  • Extruder driving through electronically regulated proportional valves.
  • 1x nozzle heating adjusted. 1x collar heating adjusted.
  • Painting: RAL according to customers wish
  • Cabling according to VDE code, diagrams are supplied threefold in DIN A4
  • CE conformity declaration
  • Line speed: up to 60 m/min
  • Accomplished cable lengths: up to 6000 m
  • Conductor-Ø range: AGW 16 - 24 / especially suitable for 5Y and LiSY conductors
  • Required connection power: ~ 150 kW