DUO#DeDust® – Sheet Cleaning System for Flexographic and Digital Printing Machines

Highly efficient inline dust removal for stable print quality, reduced downtime and measurably higher production productivity.

Technical operating principle of the DUO#DeDust® Sheet

The DUO#DeDust® Sheet systems operate according to a multi-stage cleaning principle specifically developed for the requirements of flexographic and digital printing machines in sheet processing applications. The goal is the reliable removal of paper dust, fibre residues and loose particles before the first printing unit.
First, coarse contamination is mechanically removed from the sheet surface by static brush units or optional rotating brush systems. These brush elements loosen particles adhering to the substrate surface.
Subsequently, ionization electrodes neutralize electrostatic charges so that even the finest paper dust particles lose their adhesion to the sheet.
A coordinated extraction system then immediately captures the released particles and removes them safely from the process area.
Through the precise interaction of mechanical pre-cleaning, ionization, and directed vacuum extraction, a high cleaning efficiency is achieved while maintaining gentle treatment of the sheets.
The result is significantly cleaner sheet surfaces, more stable printing processes and sustainably improved print quality in flexographic and digital printing applications.

Benefits of the DUO#DeDust® Sheet

With the DUO#DeDust® Sheet cleaning system, dust and loose particles are removed directly from the sheet surface, creating stable conditions for high-quality printing results. The effective inline cleaning prevents typical quality issues such as fisheyes, print defects or contamination of printing plates before the printing process even begins.
Key advantages include:

  • Significantly improved print quality due to clean sheet surfaces
  • Reduced fisheyes and print defects
  • Extended cleaning intervals for printing plates and digital print heads
  • Reduced machine stops in flexographic and digital printing
  • Gentle cleaning even at high production speeds
  • Easy integration into existing sheet-fed machines
  • Sustainable reduction of waste and maintenance effort

By integrating sheet cleaning directly into the production process, overall process stability increases, print reproducibility improves and the economic efficiency of production is significantly enhanced.

Typical Applications of the DUO#DeDust® Sheet

DUO#DeDust® sheet cleaning systems are used wherever flexographic and digital printing on sheet materials requires the highest standards of print quality and process stability.
Typical applications include corrugated post-print processes, high-quality sheet-fed flexographic printing, and digital printing applications using dust-sensitive substrates.
Especially at high production speeds and with strongly dust-generating materials, the inline sheet cleaning system reliably removes paper dust and loose particles before the first printing unit.
As a result, printing defects are reduced, contamination of printing plates and ink systems is minimized, and stable production conditions are maintained in sheet-fed printing processes.

Technical Specifications of the DUO#DeDust® Sheet

DUO#DeDust - Sheet Cleaner

Saugkammer mit statische BürstenSaugkammer mit rotierender BürstenSaugkammer mit statische Bürsten & IonisierungSaugkammer mit rotierender Bürten & Ionisierung
Min. Einbau- maß: 80mm
Effizienz: Hauptsächlich größere Partikel
wie Randbeschnitte.
Min. Einbau- maß: 120mm
Effizienz: Wie Statische Bürsten + teilweise
lose feine Staubpartikel.
Min. Einbau- maß: 80mm
Effizienz: Wie rotierende Bürsten + die Großzahl
feiner Staubpartikel.
Min. Einbau- maß: 180mm
Effizienz: Besten Wirkungsgrad.

Optional: Thickness adjustment in 0.1-mm increments, for sheet thickness

Improved Cleaning Performance Through Technical Options

Motorized thickness adjustment for different sheet thicknesses

Rotating brush unit replacing the static brush configuration at the sheet entry

  • Optional configuration with rotating brush without ionization.

Centrifugal separator for collecting dust and paper particles

  • 1 cleaning unit for sheet cleaning
  • 2 units for feeder ventilator systems (MFX HD)
  • Optional automatically cleaned filter for dust class M 

  • For which machines can the system be used?

    In general, DUO-Technik sheet cleaning systems can be installed in any printing machine where a minimum installation height of approximately 80 mm is available.

  • With a larger installation space, even better cleaning performance can be achieved.

    Integration has been verified for the following inline and FFG machines:

    • Bobst (Flexo, Masterflex, DRO, FFG)
    • Göpfert (Ovation, Evolution, Impression)
    • Cuir
    • Emba
    • DongFang
  • What information is required for retrofit projects?

    • Machine type and year of installation
    • Working width
    • Photos of the planned installation area and available space