Within the framework of an optimal spinning mill preparation, Trützschler offers a complete, modular system for detection and safe separation of foreign parts without high fibre losses. The most effective protection here consists of two stages: One for the separation of metals, heavy parts and burning material at the start of the cleaner line and one for the specific separation of foreign parts (foreign fibres) at the end of the cleaning line. The wide range of Trützschler special machines makes it possible here to find the ideal configuration for each line:

• Tailor-made modular system for:
  – Metal particles
  – Heavy parts
  – Foreign fibres
  – Fine dust
• Optical detection of foreign fibres
• Safe detection of white and transparent foreign parts
• Efficient separation of foreign and metal parts
• Flexible and simple integration in old and new installations
• Quality assurance
• Combination with dedusting possible

With the new Multi Function Separator SP-MF, positioned directly after the Automatic Bale Opener BLENDOMAT BO-A, all relevant protective functions are realised respectively retrofitable, including the first dedusting. The Multi Function machine is designed for production rates up to 2,000 kg/h. An integrated micro-computer control system controls all functions.


Foreign parts and foreign fibres must be divided into three completely different groups:
The first group are parts that differ significantly from cotton through their colour, contrast and structure.
The second group comprises light and transparent objects.
The third group are white, not-transparent parts.
These foreign parts, which are usually polypropylene (PP) or PE foil, hardly differ in colour from the cotton and are invisible to general foreign part separators.

Für die Erkennung der Fremdteile setzt Trützschler spezielle Sensoren ein:

Trützschler colour sensor
• Coloured parts
• Incident light from two sides

Trützschler P sensor
• Transparent/semi-transparent parts
• Transmitted light and polarisation filter

Trützschler UV sensor
• White, non-transparent parts
• UV incident light

Trützschler kombiniert die drei Sensoren in einer Maschine, damit Ihre Produktion optimale Ergebnisse erzeugt.