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Raw Material Sifter

Raw Material Sifter designed as an affective safeguard device to remove and eliminate unwanted rough materials and trash like as plastic, nylon, corn cob, stone and rope from the mainstream that may cause technical breakdown and damage in devices and conveyors used in production line in every stage.

FEEDTECH Raw Material Sifter (also known as pre-cleaner), with its durable construction and high screening efficiency for a wide range of materials and products, is variable with various types and adjustability for each one.

to be used?

  • After being discharged from bins and silos / before processing
  • Just next to the intake line of raw materials
  • Goods, that you want not to be sifted, are separated via bypass system

Applicable for

Sieving materials like as barley, wheat, maize, coffee, cocoa, tea, soy, packaged or compressed products including powder and granule formed chemical products.

Suitable for


  • Diameter from 600 up to 1000 mm
  • Capacity 30-100 m³/hour (Depending on specific weight of the product)

  • High capacities in compact design
  • Small drive source
  • Long lasting efficiency
  • Possibility for dust suction
  • Minimum maintenance

Feedtech Sifters Benefits

  • Variable capacity
  • High screening efficiency
  • Compact and lightweight
  • Energy saving
  • Powerful and operational
  • Proper for severe conditions
  • Wide range of utilization
  • Maintenance-friendly
  • Modular design
  • Simple operation
  • Easy cleaning

Types of Raw Material Sifter

Check the following table comprising the most preferred two types of Raw Material Sifter designed and manufactured by FEEDTECH, which are available with variable level of motor power and capacity and changing screens and device dimensions. You may have particular preference or requirements that will be considered and appreciated by FEEDTECH Engineering Team.

does it work?

  • The FEEDTECH Raw Material Sifter consists of a rotating drum, clad with a mesh screen with holes of 40×40 mm. The raw material is fed to the inside of the drum.
  • The intended clean material passes the screen and is normally sent to an external magnet. The oversized material is transported by flight to the back of the machine and collected in the second outlet.
  • The inlet part of the machine contains a manually operated bypass valve and is fitted with replaceable wearing plates made of manganese steel. The bypass valve is bolted to its position, with optional sensors relaying the position to the control panel.
  • The pre-cleaner is completely enclosed and equipped with a connection for dust aspiration. Further, the outlet for good product is equipped with a sight glass. Over the sight glass, a level switch can be mounted to detect product built-up in the outlet.
  • A sturdy shaft at the back supports the drum. The machine is driven by a shaft mounted geared motor flanged at the rear.

Determinant factors in sieving system selection

  • The characteristics of the products or raw materials
  • The purpose of sieving
  • Grading level & classification of material
  • The capacity you targeted as m3/per hour
  • The space & design of your production line
  • Coordination between equipment in your plant
  • Optimal energy consumption
  • Device price

Below a selection of our frequently preferred sifters: