Dampening solution fine filtration system for web offset printing applications

To maximise the process stability and to reduce costs, filtering the dampening solution is a must for web offset printing applications.

The hydroflow system is a belt filter system which has been specifically adapted to this printing method. Compared to other prefilter systems, the belt filter offers several important advantages: Although it uses inexpensive filter materials, the prefilter module eliminates coarser dirt particles. Then, the downstream main filter module of the dampening solution circulator eliminates finer particles. The result: improved filtration result and a sufficient filter service life at moderate costs.

When using the hydroflow system on a rotary printing press, prefilter boxes with filter mats, which are normally used in heatset printing, are no longer necessary.

technotrans Brochure hydroflow.pdf
> Download
Benefits at a glance
  • High filtration quality
  • Longer dampening solution service life
  • Reduced filter material consumption and filter costs
  • Reduced disposal costs
  • Reduced need for the cleaning of the dampening solution system
  • Easy handling thanks to the automatic filter fabric feed system
  • Higher printing process stability thanks to the improved dampening solution quality
  • Dimensions: 1,200 x 620 x 1,800 mm (W x D x H)
  • Filtration rate: 12,000 I/h
  • Connection voltage: 400 V ± 10% / 3 phase / 50 Hz
    460 V ± 10% / 3 phases / 60 Hz
  • The capacity of the filtrate collecting tank can be adapted to the capacity of the printing press