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  Other Equipment >> Vibro Sifter
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RFQ

Gyratory SievingThe material to be screened is fed on to the centre of top screen. The undersize material passes rapidly though the screen during its travel to the periphery. The over size material is continuously discharged through a tangential outlet. Vibro Sifter sare equipped to handle multiple screens one on top of the other with feed trays in between to give several precise sized fractions in a single screening operation. Special designs with up to seven screens are also available for grading.

The top weight on the motor shaft rotates in a plane close to the centre of mass of the assembly. Rotation of the top eccentric weights create vibration in the horizontal plane which causes the material to move across the screen cloth to the periphery. Increasing the top eccentric mass increases the horizontal throw causing oversize material to discharge at a faster rate.

The bottom eccentric weights rotate below the centre of the vibrating mass creating tilt on the screens giving vibration in vertical and tangential planes. Increasing the vertical component of motion promotes turn over of material on the screen surface helping maximum quantity of undersize material to pass through the screen. The effective vertical motion helps in minimizing blinding of screen.

The tangential component of motion is controlled by the angle of lead given to bottom weights with relation to top weights. Variation in lead angle controls the spiral pattern of material travel over the screen cloth. Speed and Flow pattern of material travel over the screen cloth can be set by the operator for maximum through-put and screening efficiency. Typical material travel patterns generated at various lead angles are shown below.

Features

  • Greater Capacity - Gyroscreen gives greater capacity per meter square of screening area and oversize material is discharged with relatively less percentage of fines when compared to other screening machines.
  • Minimum Blinding – Gyroscreen multi-plane action limits screen blinding to an acceptable minimum. However, for material having inherent blinding characteristics, we offer anti-blinding accessories to eliminate blinding.
  • Longer Screen Life - Screen cloth is held in uniform tension on specially designed mesh frames. The tight screening surfaces vibrates rigidly without flexing of wires, greatly reducing screen wear and increasing screen life.
  • No Transmitted Vibration – No special flooring foundation is required. The Vibro Screen may be placed wherever required, like on the top of bins, on wooden floors, or light structures.
  • Minimum Space Requirement - For equivalent capacity, Vibro Screen requires less space than other screening systems. Compact units can fit right into existing Production Lines.

Application

Aspirin

Pharmaceuticals

Abrasives

 

Refractory

Biscuit

 

Sand & Glass

Bulk Drugs

 

Starch Slury

Calcined Petroleum Coke

 

Spices

Cattle Feed

 

Sulphur Powder

Ceramic Industry

 

Sodium Sulphate

Detergent Powder

 

Tea

Edible Oil

 

Table Salt

Effluent

 

Polymer Resin/Plastic

Fertilizer

 

Pallets/Powder

Food Industry

 

Paper

Gelatine

 

Paints

Metal Powder / Shot & Grits

 

Polymer Resin/Plastic