PMF loom

Papermachine felts

DILO's papermachine needlelooms (PMF) are the largest textile machines in the world with a working width of up to 16 m and a total weight exceeding 900 tonnes.

Papermachine felts are used in the dewatering process during paper production as press felts. They consist of a carrier fabric and multiple fibre web layers. Such a belt can be 100 m long. They are produced as an endless felt to avoid markings in the paper due to joints.

  • papermachine felts
  • aprons in bakery machines
  • tannery aprons
  • transport aprons

 

  • sandwich construction made with web and carrier fabric
  • high tensile strength
  • permeable to water
  • high surface quality for paper free of markings

Two carding and crosslapping stages are necessary to obtain the required regularity. A CV1-A web regulating profile system is mounted at the crosslapper (DLP) to achieve a more regular needlefelt. This results in a reduction of the median area weight and in fibre savings. The web is only lightly preneedled (OD-I P) before it is finish needled in conjunction with a carrier fabric, as a belt in a PMF needleloom. The felts are produced endlessly by adding the preneedled felt continuously to the base. A carriage maintains the belt tension. The needlelooms are normally equipped with an elliptical Hyperpunch drive to reduce stitching markings and needle breakage.

production of papermachine felts
finish needling

Production of papermachine felts

finish needling

Process for the production of papermachine felts

Krempelspeisesysteme

feeding weigher
Krempelsysteme

PMF precard
Zweibandleger

DiloLayer DLA
Krempelsysteme

PMF main card
Großleger

DiloLayer DLP
Nadelmaschinen zur Herstellung von Papiermaschinenfilzen

OD-I P
Zusatzeinrichtungen

winder
Nadelmaschinen zur Herstellung von Papiermaschinenfilzen

PMF needleloom
Needlelooms for papermachine felts

Needlelooms for papermachine felts

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