Innovative Filtration for Foam Sheet Manufacturing

Typical applications are e.g.:
Packaging sheet, insulation sheet, decoration sheet, thermoforming sheet

• Typical materials: PS, PE, PP
• Common throughputs up to 2.000 kg/h
• Filtration finenesses down to 100 µm

In foam sheet manufacturing – due to special production conditions – the filtration system, besides guaranteeing a reliable removal of solid and soft particles, must fulfill many additional requirements. Permanent pressure-consistency is very important to create a uniform and homogeneous cell structure and to avoid melt expansion during screen changes. Moreover, the filtration system must exclude the possibility of a gas leakage. For these applications Gneuss Filtration Systems offer tailor-made solutions and make continuous cost reduction in the production process, combined with top product qualities, possible. See also the SF Rotary Filter that started the Gneuss success story.

The advantages of Rotary Filtration

• Constant foam structure
  The pressure-constant mode of operation of the filtration system makes a constant foam structure possible. This not only guarantees constant product properties, but also ensures trouble-free downstream processing.
• Minimum thickness tolerances
  The process consistency of the Gneuss Rotary Filtration Technology reduces product tolerances and therefore leads to material cost savings and very good film flatness.
• Maximum line availability
  Fully-automatic screen changes without production disturbances and interruptions ensure maximum line availability. The RSFgenius and the SFXmagnus even offer a fully-automatic operation.
• Reduced material costs due to greater use of reclaim
  Gneuss Filtration Systems make it possible to process a greater amount of reclaim, without impairing the product quality. This leads to reduced material costs.
• Safe and clean screen changes
  Gneuss Filtration Systems make safe and clean screen changes possible, thanks to the pressure release of the emerging cavity and the unique sealing technology.