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Rotary Vibrators
Rotary Vibrators For Circular Vibration
Within the range of pneumatic vibrators, the rotary vibrators are the most widespread and NetterVibration is the European leader in their application know-how.
Pneumatic Rotary Vibrators produce a circular vibration created by a rotary unbalance.
Depending on the kind of unbalance there are different Series of Rotary Vibrators:
- Series NCB: A steel ball running on a polished race.
- Series NCR: A steel roller running on a ring.
- Series NCT: Turning of a turbine loaded with eccentric unbalances.
- Series NTV: Turning of an eccentric rotor.
All of them have a similar operating principle. When compressed air is supplied, the unbalance (ball, roller, turbine or rotor) is accelerated to the nominal speed, creating a circular vibration with a sinusoidal shape.
Pneumatic Rotary Vibrators generate high centrifugal forces, high frequency vibrations with small (Series NCB, NCR and NCT) or medium unbalances (Series NTV).
In the following video, the result of applying a rotary vibrator (Series NCB) under a vibrating plate mounted on coil springs is shown. The movement generated is totally circular and sinusoidal.
Features and advantages:
- Compact and robust design
- Light weight
- Low maintenance
- Long lifespan
- Frequency continuously adjustable via air pressure
- High power to weight ratio
- Special versions avaIlable
Tasks Performed:
- Cleaning
- Conveying
- Loosening and Releasing
- Sorting and Separating
- Testing
- Compacting
- Sieving
- Emptying
Industries Served:
- Automotive
- Construction
- Food
- Pharmaceutical
- Chemical
- Plastics
- Machinery
- Foundry
- Manufacturing
In the chart bellow, the most significant data for pneumatic rotary vibrators are shown, along with a comparison of ball (Serie NCB), roller (Serie NCR), turbine (Series NCT) and rotor vibrators (Series NVT, NVG, NVR and NQT):
| NCB | NCR | NCT | NTV | |||||
|---|---|---|---|---|---|---|---|---|
| From | To | From | To | From | To | From | To | |
| Frequency [min-1] | 7,220 | 42,340 | 10,140 | 34,304 | 5,100 | 45,460 | 9,000 | 17,500 |
| Centrifugal foce [N] | 222 | 4,866 | 878 | 9,100 | 288 | 8,659 | 7,130 | 62,260 |
| Unbalance [cm·kg] | 0.005 | 0.808 | 0.031 | 1.2 | 0.006 | 5 | 0.45 | 9.8 |
| Air Consumption | High | Medium | Low | High | ||||
| Noise level | Medium | High | Low | High | ||||
| Lubrication | Recommended | Recommended | Not necessary | Recommended | ||||
| Performance | Low | Medium | High | Very high | ||||
Contact us! We will recommend the best vibrator for your application.
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Series NCT Pneumatic Turbine VibratorsPneumatic turbine vibrators of the series NCT are particularly suitable for moving bulk materials. They can be used for emptying containers and big bags, driving chutes, sieves and vibrating tables and for the mechanical stimulation of processes.
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Series NCB Pneumatic Ball VibratorsPneumatic ball vibrators of the series NCB can be used wherever bulk materials need to be moved. They serve in the emptying of bunkers, for preventing bridging, rat-holing and adhesion. When used to drive chutes, sieves and vibrating tables, they ensure that material flow in maintained.
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Series NCR Pneumatic Roller VibratorsPneumatic roller vibrators of the series NCR are particularly suitable for the elimination or reduction of friction. They can be used for emptying bunkers and preventing adhesion to pipes and plates.
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Series NTV Pneumatic External VibratorsPneumatic external vibrators of the series NTV are especially suitable for compacting, conveying and loosening bulk material. The circular vibration is produced by eccentric rotating rotors.