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 turnover 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.

0 degree lead average materials will be through straight	30 degree lead average material will being to spiral	60 degree lead average materials will give maximum screening pattern	90 degree lead oversize materials does not discharge

Key feature of vibro screen

• Greater capacity - gyro screen 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 - gyro screen 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 surface 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.

Available models of Vibro Screen

Specifications of Vibro screen

Standard accessories of Vibro Screen

• Per deck one screen.
• Suitable vibratory electric motor.
• 3 meter cable & 3 pin top

Dust Cover For Vibro Screen: This accessory is must for dust free screening. It is conical cover with an inlet hole in center for feeding material and as inspection window to see the screening process on the mesh. Dust cover is clamped on the topmost deck with the help of 'V' grooved and 'C' clamp and can be removed easily if not required.

Extra accessories of Vibro Screen

• Extra Screens
• starters, main switch, ampere meter, capacitor for Three Phase Electric Motor.
• Suitable miniature circuit breaker as per IS: 8828 with 3 pin top as per IS: 1293 for single Phase Electric Motors.

Anti Vibration Mounts Isolates the machine vibrations of machine from the ground. It also helps in accurate leveling of the machine.
Feeder Hopper This device helps you to ensure continuous and steady feed to the machine. Very useful where feed material is to be manually dumped from bags.
Mesh Fixing Fixture A useful accessory incase where mesh is to be tied frequently due to high wear and tear from abrasive or heavy nature of material. It is still advisable to keep a spare screen ring if the mesh change over is to be done fast.
Ball Tray / Ring Tray This is useful to achieve non clog screening. A tray having rubber /PP balls or rubber / plastic rings is mounted underneath the fine mesh screen. The ball / ring get continuous vibrations from machine and hence they jump and hit the fine mesh from below. This makes particles trapped in the mesh holes to fall down and thereby keep mesh opening as clear as possible.

Application of Vibro Screen

The Jas Vibro screens are use for a wide range of application e.g. Food industries, dehydrated food, spices, flour, agro industries, guar gum, isabgul, seeds, wheat, sesame, whole spices, soya, ceramics industries, zircon, glazed tiles, china clay, paper industries, paper, paper board, duplex, oil industries, castor, ground nut, soya, oilseeds, plastics industries, roto molding, reprocessed granule, PVC resin, PVC cable, pint industries, pigments, emulsions, aluminum paste, varnish, solvents, etc., chemicals industries, dyes, intermediates, paints, pigments, pesticides, pharmaceutical industries shifting, tablet de dusting, granule grading, metal industries, Ferro alloys, c.i powder, foundries, and many more...