Pneumatic External Vibrators - NVR, NVG, ...
Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series
Rotary models can be ball, roller or turbine action.
In the former model a ball is rotated by air pressure around the inside of a hardened steel race to give an out of balance force. The speed of rotation and the force output are varied by changing the inlet air pressure. This principle also applies to the roller type. In the turbine, an out-of-balance turbine is held in bearings while being rotated. In this case there is no metal to metal contact which gives a much quieter operation with no lubrication required.
Again, varying the air inlet pressure will change the frequency and force.
Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series
- Circular vibration
- Nominal frequency from 8,500 min-1 to 17,000 m in-1
- Centrifugal force from 7,130 N to 62,260 N
- Frequency infinitely variable by air pressure
- No bearings
- Easily and quickly removable
- Noise reduced design NQT
Application
The pneumatic external vibrators series NQT, NVG, NVR und NVT are especially suitable for compacting, conveying and loosening bulk material. They are used to compact concrete, empty bins and as drives for conveyors, sieves and vibrating tables. A special feature is the ruggedness against strong varying loads. There is no danger of overload.
Design and functioning principle
The vibration (circular) is produced by eccentric rotating rotors. The frequency and the centrifugal force are continuously adjustable by the operating pressure. For operation a control valve is required (not included in scope of delivery).
Permissible operating conditions Drive medium:
Compressed air or nitrogen (Filter ≤ 5 μm), preferably with oil mist.
Operating pressure:
100 kPa to 700 kPa
Ambient temperature:
–10ºC to +60ºC
Units for other temperatures are available.
For more information on Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series, please click here.
To contact Vibration Systems & Solutions about Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series use Get a quote.
In the former model a ball is rotated by air pressure around the inside of a hardened steel race to give an out of balance force. The speed of rotation and the force output are varied by changing the inlet air pressure. This principle also applies to the roller type. In the turbine, an out-of-balance turbine is held in bearings while being rotated. In this case there is no metal to metal contact which gives a much quieter operation with no lubrication required.
Again, varying the air inlet pressure will change the frequency and force.
Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series
- Circular vibration
- Nominal frequency from 8,500 min-1 to 17,000 m in-1
- Centrifugal force from 7,130 N to 62,260 N
- Frequency infinitely variable by air pressure
- No bearings
- Easily and quickly removable
- Noise reduced design NQT
Application
The pneumatic external vibrators series NQT, NVG, NVR und NVT are especially suitable for compacting, conveying and loosening bulk material. They are used to compact concrete, empty bins and as drives for conveyors, sieves and vibrating tables. A special feature is the ruggedness against strong varying loads. There is no danger of overload.
Design and functioning principle
The vibration (circular) is produced by eccentric rotating rotors. The frequency and the centrifugal force are continuously adjustable by the operating pressure. For operation a control valve is required (not included in scope of delivery).
Permissible operating conditions Drive medium:
Compressed air or nitrogen (Filter ≤ 5 μm), preferably with oil mist.
Operating pressure:
100 kPa to 700 kPa
Ambient temperature:
–10ºC to +60ºC
Units for other temperatures are available.
For more information on Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series, please click here.
To contact Vibration Systems & Solutions about Pneumatic External Vibrators - NVR, NVG, NVT & NQT Series use Get a quote.
The NVR, NVG, NVT and NQT pneumatic external vibrator series generates circular vibration to compact, convey or loosen bulk material. Compressed-air pressure continuously adjusts vibration frequency and centrifugal force, giving operators variable settings for both during operation. The range is also used to compact concrete and empty bins, or drive conveyors, sieves and vibrating tables.
- Easily and quickly removable
- Operating pressure: 100 kPa to 700 kPa
- NQT models have a noise-reduced design
- Turbine models have no metal-to-metal contact and require no lubrication
- Compressed air or nitrogen drive; control valve required, not included
Source: listing by Vibration Systems & Solutions on IndustrySearch · Updated 5 Nov 2026
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Written by AI from the listing by Vibration Systems & Solutions on IndustrySearch. It is meant to use only what that listing says, but it can still get details wrong, so check them with the supplier before you buy.
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