DREF 2000 machine

An example of DREF 2000 usage in the filter sector is the use of friction spun yarns for drinking and industrial water, pure water and activated carbon filters. A specialist manufacturer employs DREF products for over 20 types of cartridge that require compatibility with FDA foodstuffs legislation. The yarns employed generally consist of PP fibres in the 3.3 dtex, 40 mm range, which are highly resistant to micro-organisms and have a wide scope of chemical applications

Friction spun yarns offer 20-40% more air volume in the yarn and less flow resistance than flyer yarns, as well as up to twice the service life. The fibre structures are relatively random and subject to high degree of twist. The yarns offer great regularity and increased strength, while their round yarn cross-section ensures limited deformation under transverse load. In addition, production costs are cut by up to 50% through reduced preparation, spinning and personnel expenses. The knot-free, uniform quality of the yarns guarantees fault-free filters and constant micron values, with the layered structure creating a hairy surface that is ideal for filtering purposes.


  • System flexibility and simplicity
  • Production of both ‘S’ and ‘Z’ yarns at any time without mechanical alterations to the machine
  • Expansion of the scope of yarn and fibre utilization in the medium yarn count range
  • Reduced yarn preparation costs due to high sliver weights (card slivers)
  • Dust extraction for secondary fibres
  • Touch Screen: – allows the easy handling of the various yarn parameters – yarn count calculation, length and weight measurement are included by means of the PLC control – link to the customer’s computer is possible by means of an interface
  • High spinning speeds
  • High Bobbin weights
  • Low energy costs due to the use of only 1 fan for 12 spinning heads
  • Simple, variable and single adjustment of the negative pressure for all spinning heads.
  • Feeding of all types of filaments, yarns and components as yarn cores, in order to attain high yarn strength and production speeds, voluminous yarns and specific product characteristics


  • Blankets for the hometex range, hotels, hospitals, campings, military uses, plaids etc.
  • Cleaning rags and mops from cotton waster and various waste-blends
  • Deco- and upholstery fabrics
  • Outerwear and leisure-wear
  • Filter cartridges for liquid filtration
  • Secondary carpet backing for tufting carpets
  • Interlinings
  • Canvas and tarpaulins for the military and civil sectors
  • High-tenacity core yarn for ropes, transport and conveyor belts
  • Asbestos substitutes for heavy protective clothing (protective gloves, aprons etc) packings, gaskets, clutch and brake-linings, flame retardant fabrics etc.
  • Filter Yarns for the cable, shoe and carpet industries
  • Carpet Yarns (Berber carpets, hand-woven and hand-knotted carpets) and filler weft yarns for carpets


  • electrical supply part (3 sizes for 12, 24, & 48 spinning heads)
  • 1 to 8 spinning section(s) with 6 spinning heads each


  • 2000 – 40tex (Nm 0.5- 25/CC 0.3 – 14.5)


  • Up to 250m/min depending on fibre type and yarn count


  • Natural, man-made, special fibres such as para-aramids, polyimids, glass fibres, etc., secondary and regenerated fibres and blends.
  • denier: 1.7 – 10dtex
  • Staple Lengths: 1 – 120mm


  • 5-15 ktex card slivers
  • 3-7 ktex drafter slivers
  • Max. 30ktex total weight/spinning head.


  • Cylindrical
  • Traverse 200mm
  • Max. diameter 400mm


  • Up to 8kg


  • Mono and multi-filaments
  • Yarns, Plied Yarns, Tape
  • Glass Fibre Filaments
  • Metallic Wires