Attritors that Mill Nano-Sized Particles

Union Process' 30SD Attritor mills dry powder for nano-sized particle reduction, then transfers it for dispersion and blending in the 50SD Attritor.


Union Process 30SD and 50SDUnion Process recently produced the 30SD and 50SD dry grinding Attritors to work in tandem, with one unit milling a dry powder for nano-sized particle reduction, and then transferring the material to the other unit for complete and thorough dispersion and blending in a second-stage wet process. The dry powder created in the 30SD is transferred via a dry powder pump into the 50SD for this 2-stage process. Other features include:

  • An LCD operator interface module to display the agitator RPM, motor amps and motor HP being used.
  • A 1-piece stainless steel tank cover with a Meco shaft and a variable-frequency drive that is housed in a NEMA 4X/12 washdown-duty enclosure.
  • A 75-HP, totally enclosed fan-cooled inverter-duty motor on the 50 SD, whereas the 30SD implements a 40-HP motor.
  • An optional process control timer package that consists of a process run timer, a temperature warning and cut-off switch, as well as cooling water flow sensors.