Typical applications are e.g.:
Hygienic articles, base material, textiles

  • Typical materials: PE, PP, PET, PA 6, PA 66, PBT
  • Common throughputs up to 2.000 kg/h
  • Filtration finenesses down to 6 µm

In nonwovens manufacture it is necessary to achieve a uniform spinning quality across all spinpacks. Therefore, any inhomogeneities must be removed before they enter the spinning beam. Moreover, process consistency regarding pressure and temperature is the basic prerequisite for an efficient production. High throughput rates make a fully-automatic filtration system without any influence on the process necessary. The RSFgenius and the SFXmagnus were developed especially for these requirements and make continuous cost reductions in the manufacturing process, with top product qualities, possible.

The advantages of Rotary Filtration

  • Consistent material properties thanks to a short dwell time of the melt
    Thermal degradation of the melt is avoided, the viscosity remains constant. In this aspect the RSFgenius and the SFXmagnus are substantially different from conventional candle or disk filters.
  • Longer spinpack lifetime
    The process-constant mode of operation of the RSFgenius and the SFXmagnus avoids any influence on the spinning process all year. Pre-filtration with 20 µm or finer directly upstream of the spinpack is possible, so that the spinpack can be used primarily for melt homogenization.
  • Reduction of filament breaks (slubs)
    Higher melt purity improves the spinpack specifications and therefore leads to a more homogeneous melt quality as well as to a more constant melt flow. Consequently, filament breaks and slubs can be avoided, which are particularly annoying visually in nonwovens with a low basis weight.
  • Reduced material costs
    The RSFgenius with its integrated self-cleaning makes the use of a greater amount of reclaim (up to 100%) possible, without impairing the product quality. This leads to reduced material costs.
  • Maximum line availability
    Screen changes without any production interruptions and disturbances as well as the fully-automatic mode of operation make a maximum line availability possible.