GFZ2 Isostatic Powder Press for Tableware

Our isostatic powder press GFZ2 is used for the efficient forming of flatware, bowls and ovenware made of ceramic granules (e.g. porcelain, hard-paste porcelain, stoneware and bone china).

Closing force and installation space of the press have been optimized for the production of large flat tableware, bowls and ovenware with our DORST tool system being suited to a wide variety of article shapes. The geometry of the article as well as reliefs, inscriptions and logos will be reproduced in a very precise way.

The vertical pressing cylinder of the GFZ2 operates two pressing tools that move into the pressing cylinder in alternating sequence. Filling of the tools takes place outside the pressing cylinder with the tools being able to be positioned vertically for that purpose. The pressing cylinder closes off the two tool halves while the granules are being compacted isostatically. After the pressing process, a fettling robot takes the article out of the lower punch of the tool in horizontal position.


  • Precision and durability
  • Energy efficiency
  • Productivity
  • Tailored to our DORST tool systems
  • Flexibility



Technical information


  • Sound insulation (optional) for improved occupational health and safety
  • Dust extraction (optional) for improved occupational health and safety
  • Service router (optional) for quick remote support provided by our DORST Customer Service Office
  • Strong closing cylinder with centered clamping platens and tool locating blocks for permanent precision
  • Powerful vacuum and compressed air filling system (optional) for quick and safe filling of all kinds of article geometries
  • Closed-loop controlled pressure intensifier for the isostatic pressure (optional) including filling monitoring of the pressing tool (empty pressing/double pressing)
  • Field-tested usability

DORST tool system

  • Static pre-compaction of the granules.
  • Optimum use of the membrane space (energy efficiency)
  • Adjustment of the thickness of the article layer during operation
  • Long service life of the membranes
  • Quick and easy tool change due to centered tool halves
  • Closing force: 7000 kN
  • Isostatic pressure: 300 bar

Pressing heads

  • Number: 1

Pressing tools

  • Number: 2

Maximum size of article (pressed, green)

  • Cicular articles (diameter): max. 480 mm
  • Square articles (side length): max. 410 x 410 mm
  • Oval articles (length x width): max. 550 x 410 mm
  • Rectangular articles (length x width): max. 505 x 355 mm
  • Article height: max. 275 mm


  • Circular articles (depending on granular material and article shape): approx. 150 - 200 pcs/h
  • Non-circular articles (depending on granular material and article shape): approx. 100 - 150 pcs/h

Fettling machines

  • can be combined with robot fettling systems RUP2 for circular and non-circular articles
  • Isostatic pressing of ceramic granules
  • Vacuum filling and filling of the pressing tools under compressed air
  • Static pre-compaction of the pressing granules

Do you have any questions?
We are glad to be at your service.

Contact us.