Strand Lines - Complete lines for medical strandsExact roundness & exact diameter by vertical water bath.


In case of COLLIN strand lines, it is unique that all production steps are provided by a single source – compounding, coextrusion, take-off and cut.

The vertical water bath is the highlight – a COLLIN innovation, which guarantees reliable roundness.

For an exact throughput of the line, the extruders are equipped with melt pumps and pressure/speed controls. By using a multi-layer die, the strand is directly and vertically extruded into a water bath. This process eliminates any influence of a calibration system. The gravitation guarantees high accuracy of diameter and roundness.

Moreover, a continuous water flow guarantees an absolutely calm water surface when the product enters the cooling tank.


  • All production steps from one source
  • Reliable roundness and diameter by vertical water bath
  • Different take-off speeds
  • Manufactured according to FDA 21 CFR, ISPE, ISO 13485, Din EN 10204/3.1B, cGMP/GMP
  • The design meets the hygienic standards
  • Easy cleaning
  • Enormous variability in production
  • Continuous production, compliance with all tolerance specifications
  • Lines which can produce around the clock
  • Medically approved stainless steel for all parts having contact with the product
  • All surfaces with a very low degree of roughness for easy cleaning and disinfection
  • Standards-compliant validation, qualification and documentation
  • SCADA software solutions according to GAMP guideline


  • EVA
  • TPE
  • TPU

The touch screen control system is ergonomically designed and files all process as well as quality parameters.


  • Medical yarn
  • Drug-loaded strands


  • Companies in the pharmaceutical sector
  • Companies in the medical sector
  • Universities and institutes

Further COLLIN Medical Lines


COLLIN Solutions For medical & pharmaceutical products