Nesans VX Series Modular Vibrating Screens permit its use for wet and dry screening, coarse and fine separations and are widely used in steel mills, mineral benefaction plants, chemical, mining, food and fertilizer industries, coal preparation plants and many others.
The main characteristic is operational reliability to suit the widest possible range of precise requirements. Nesans VX Series screens has been designed with a box shaped screen body can be fitted with almost any type of screen mat – of steel, rubber or plastic with provision for transverse, plane or longitudinal tensioning.
The steep angle of throw prevents mesh blinding, which permits maximum screening efficiency. The operating speed range normally varies between 1000 – 1500 rpm.
The screening machine is driven directly through a cardan shaft. The vibrating element is a through shaft, mounted in the two screen webs and fitted with unbalance segments. All clamping parts and screen mats are easily changed.
The design features high acceleration on the deck surface which permits handling of difficult-to-screen materials. The centrifugal force exciter unit is mounted on special vibration duty bearings that are grease lubricated and require minimum maintenance.
Available in single, double, triple and quadruple deck versions, the size range includes machines up to 2 m wide x 6 m long. Capacity range up to 1200 tons per hour depending upon separation size and material characteristics.
Model | Screen size ( ft ) | Screen size ( mm ) | Number of decks | Type | Screen Area / Deck ( Sq.ft ) | Motor ( kW ) | Motor ( hp ) |
---|---|---|---|---|---|---|---|
VX4015-4S | 13 X 5 | 4000 X 1500 | 4 | Secondary / Tertiary | 65 | 15 | 20 |
VX4014-3S | 13 X 5 | 4000 X 1500 | 3 | Secondary / Tertiary | 65 | 15 | 20 |
VX4015-2S | 13 X 5 | 4000 X 1500 | 2 | Secondary / Tertiary | 65 | 15 | 20 |
VX4015-3SP | 13 X 5 | 4000 X 1500 | 3 | Primary | 65 | 15 | 20 |
VX4015-2SP | 13 X 5 | 4000 X 1500 | 2 | Primary | 65 | 15 | 20 |
VX4518-4S | 15 X 6 | 4500 X 1800 | 4 | Secondary / Tertiary | 90 | 22 | 30 |
VX4518-3S | 15 X 6 | 4500 X 1800 | 3 | Secondary / Tertiary | 90 | 15 | 20 |
VX4518-2S | 15 X 6 | 4500 X 1800 | 2 | Secondary / Tertiary | 90 | 15 | 20 |
VX4518-3SP | 15 X 6 | 4500 X 1800 | 3 | Primary | 90 | 22 | 30 |
VX4518-2SP | 15 X 6 | 4500 X 1800 | 2 | Primary | 90 | 15 | 20 |
VX5020-4S | 16 X 6 | 5000 X 2000 | 4 | Secondary / Tertiary | 96 | 22 | 30 |
VX5020-3S | 16 X 6 | 5000 X 2000 | 3 | Secondary / Tertiary | 96 | 22 | 30 |
VX5020-2S | 16 X 6 | 5000 X 2000 | 2 | Secondary / Tertiary | 96 | 15 | 20 |
VX5020-3SP | 16 X 6 | 5000 X 2000 | 3 | Primary | 96 | 22 | 30 |
VX5020-2SP | 16 X 6 | 5000 X 2000 | 2 | Primary | 96 | 22 | 30 |
VX6020-4S | 20 X 6 | 6000 X 2000 | 4 | Secondary / Tertiary | 120 | 30 | 40 |
VX6020-3S | 20 X 6 | 6000 X 2000 | 3 | Secondary / Tertiary | 120 | 22 | 30 |
VX6020-2S | 20 X 6 | 6000 X 2000 | 2 | Secondary / Tertiary | 120 | 22 | 30 |
VX6020-3SP | 20 X 6 | 6000 X 2000 | 3 | Primary | 120 | 22 | 30 |
VX6020-2SP | 20 X 6 | 6000 X 2000 | 2 | Primary | 120 | 22 | 30 |
The factors to consider while selecting a vibrating screen are
1. Capacity in TPH
2. Input size distribution / feed gradation
3. No of Products Required
4. Size of the Products
5. Moisture content of the feed
6. Operating Temperature
The stroke and stroke angle can be found by observing the stroke card pasted in the vibrating screen. The size of a circle which is seen as two circles touching each other in its circumference while running is the stroke of the screen.
The stroke of the screen can be adjusted by increasing or decreasing the weights of the unbalance. Increasing the weight of will increase the stroke and decreasing the weight will decrease the stroke of the screen.
The main difference between the two screens are as follows
1. No of bearings ( 2 in VM series, 4 in VX Series)
2. No of Shafts ( 2 in VM Series, 2 in VX Series)
3. VX series has the ability to withstand deflection in the shaft due to its universal joint shaft connecting the two bearing housings.
4. 4 Bearing screens start and stop smoothly as compared to 2 bearing screens.
Both VM and VX series screens can be modified to run for a wet screening application. High Pressure spray nozzles mounted above the screen decks can provide adequate water for wet screening.
The screening media will depend upon the following factors.
1. Feed Size
2. Output Size
3. Material abrasiveness
4. Wet / Dry Screening
The two most commonly used media are perforated sheets / punched plates and the wire mesh with clamping options. Both the media are equally effective.
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