Rotary Sifters (Rotary Sieves)

Rotary sifters, rotary sieves, and rotary screens with more throughput capacity per screen area than other screening equipment on the market.
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Prater rotary sifters, sometimes referred to as Rotary Sieves or Rotary Screens, offer more throughput capacity per screen area than any conventional screening and separation equipment. Our maintenance-friendly design allows large, quick-opening access doors to be easily installed that ensure access to the sieve chamber and all internal working parts. Virtually no tools are required for screen frame assembly changes and changing or replacing these screens takes only minutes.

Prater Rotary Sifter Case Studies

Our exclusive Prater Rota-Sieve® design is totally enclosed and operates quietly and efficiently with no dust issues, motion or vibrations. We are also proud to offer a patented, elite option named the Rota-Trap®, which was specifically designed for heavy duty pre-scalping by trapping and protecting the sieve cloth from tramp metal, stones and other unwanted particles. These Rota-Sieve® centrifugal scalpers and sifters are ideal for sizing, sifting, scalping, classifying, and breaking of agglomerates. Customers are confident that no matter what their processing needs may entail, we have customized rotary sifters for their operation.

Centrifugal Sifter:

Rotary Sifter

Our centrifugal sifters scalp products from 1/4 inch – 325 mesh and boasts ultra-high-throughput per square foot of cloth area. They are equipped with three-bearing shaft support, drilled for superior air purge, and a fully adjustable 4-paddle rotor. It is self-cleaning and easy to maintain, with tool-less screen change capabilities and simple access to all internal working parts.

Mini Sifter:

Mini Sifter

Our mini-sifter is an easily assembled and disassembled rotary sifter that is completely versatile and vibration-free. It’s high throughput, safety interlocked features and heavy-duty design make the mini-sifter flexible enough for lab applications and rugged enough to meet small production requirements.

Not Sure Which Machine You Need?

Try our Equipment Recommendation Tool: choose a unit of measurement and desired finish size, and we’ll determine which machine to use.


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