Designed to provide users with an efficient dust tight high throughput non-vibratory sieving machine, the ‘Sievmaster Rota’ series gives accurate material screening with continuous fine and coarse discharge. Material fed into the inlet port of the unit passes into the infeed compartment and then, via a screw feed, into the sieving area. The sieving area consists of a mesh cylinder and a paddle blade arrangement revolving within. The product is pushed against the mesh forcing the fine product through. Coarse product is ejected at the end of the machine and the fine powder discharges through the base of the main body. Product is sieved on a continuous basis and very large quantities can be processed very quickly. The machine is especially suitable for high volume sieving, lumpy, sticky and dusty products. Manufactured in all stainless steel with a bead blast or Electro polished finish, these machines can be fitted in-line and are suitable for all types of industries – Food, Pharmaceutical or Chemical.


The Rota series is available in three basic variants, designated Rota 200-E, Rota 200-C & 400. The R200-E is the workhorse of the range suiting most centrifugal sifting requirements it has a fully support shaft at both ends, thus making it suitable for the most arduous tasks. The ‘C’ version is proportionally the same but has a cantilevered shaft that only has bearings at the drive end. The R400 is based on the R200-E but has twin drive and basket configuration, but can fed from one inlet and has a single fines and oversize outlet. The Rota series can be fed using any type of conveyor, whether mechanical or pneumatic. Outlets can also be configured to allow sieved material to discharge into any conveyor type as listed above. There is also a special version the ‘Disintegrader’ designed to break down hard or agglomerated product and grade it in one action. The unit can also be fitted with ultrasonic de-blinding for difficult fine products.

Typical Uses

  • Check sieving ingredients
  • Under FIBC/IBC discharging systems
  • Large production facilities
  • Within pressure or vacuum systems direct from bulk storage of powders
  • Lump breaking / De-agglomeration
  • Wet or dry applications
  • Flour, sugar, spices, cosmetics, seeds, almost any powder or granulated material


  • Your product quality maintained
  • Sieve & lump break in one action
  • Constructed from FDA compliant materials
  • Low maintenance/running costs
  • Quick change screens – nylon, stainless, wedgewire
  • Dust & hose proof   IP67
  • Easy clean design, internal parts removable with no tools
  • No vibration – smooth running
  • All stainless steel contact parts

Options Available

  • Available in R200-E, R200-C, twin R400 units
  • Mobile stands for greater flexibility
  • Variable or fixed speed models
  • Vacuum / blowing line transfer model
  • Cantilever model with no end bearings or seals
  • Full validation packages for Food/Pharma
  • Extended feed auger for agglomeration break down


Arrange a free demo today at our factory in Hampshire to see our products in action.

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