FAQ
NAVCO manufactures over 70 different sizes and models of pneumatic piston vibrators for use in a wide range of bulk material handling and processing applications. NAVCO Pneumatic Piston Vibrator configurations are described below.
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The Impacting model (IGO)
develops a high amplitude repetitive impulse when the piston strikes the base of the bore sharply on each cycle. The piston is air cushioned at the head plate on the upward stroke. Energy is transmitted through the bin wall and into the material with each impact. Repetitive impacts allow the vibrator to overcome bulk material strength, affect a large area of influence, and reduce the wall friction. Impacting vibrators are ideal for bulk material that is cohesive or has poor flow characteristics. They are also effective for cleaning out adhering material from empty bins and process vessels.
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The Silent model (SGO)
generates a sinusoidal output by creating an air cushion at each end of the piston stroke. NAVCO Silent Pneumatic Piston Vibrators are effective where non cohesive or free flowing material requires only a small amount of energy to produce flow or linear motion is needed.
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The Timed Impact model (IGT)
delivers a single, high amplitude impulse each time it is energized. They are operated by a control device that sends intermittent signals to the unit. The impulse of this unit is ideal for evacuating hoppers and process vessels. Specific advantages of the timed impact unit are low noise level, controlled impact, and low air consumption.
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- Interior Specialty Coating for less wear and longer life
- Single Tapped Exhaust
- Dual Tapped Exhaust
- Start Spring for horizontal Mounting/li>
- Controls and Timers
Control systems reduce utility consumption and increase system life. A successful vibrator system installation requires a full understanding of the affected process. Integration of the vibrator system into the process can be accomplished via process feedback signals, simple timers, PLC or a combination. NAVCO offers simple to sophisticated control systems depending on the application.
- T-Slot Mount – For Flat walled hoppers
- Channel Mount – For curved Hopers
- For Chutes and Pipes:
- U Mount for Light Duty
- Slip Mount for portable applications
| Model No |
Frequency | Air Consumption |
Sound Presuure Level |
Sizing Criteria |
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| Impacting (VPM) | Silent (VPM) | Impacting (SCFM) | Silent (SCFM) | Impacting (dBA) | Silent (dBA) | Hopper Capacity(cu. ft) | Wall thickness range (inches) | Weight (lb) | |
| BH-1 | 7250 | 3600 | 3.3 | 3.0 | 86 | 73 | 3 | 1/16”-1/8” | 3 |
| BH-1.25 | 5250 | 3150 | 4.2 | 4.0 | 87 | 67 | 3-7 | 1/16”-1/8” | 3 |
| BH-1.62 | 5100 | 2200 | 7.5 | 7.2 | 102 | 74 | 7-20 | 3/16”-1/4” | ” 18 |
| BH-2 | 4750 | 2100 | 8.3 | 8.3 | 106 | 73 | 20-50 | 3/16”-1/4” | 20 |
| BH-3 | 3400 | 1800 | 11.6 | 11.3 | 96 | 76 | 10-20 ton | 1/4”-3/8” | 50 |
| BH-4 | 2750 | 1400 | 18.2 | 18.2 | 110 | 83 | 50-100 ton | 3/8” – 1/2” | 105 |
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FAQ
Selecting a proper Pneumatic Piston Vibrator depends on three main criteria’s:
- Capacity of the Hopper
- Shell thickness of the Hopper
- Material properties which are carried inside the hopper.
There are three basic types of Vibrations created by Pneumatic Piston Vibrator
- The Impacting model (IGO) develops a high amplitude repetitive impulse when the piston strikes the base of the bore sharply on each cycle. The piston is air cushioned at the head plate on the upward stroke. Energy is transmitted through the bin wall and into the material with each impact. Repetitive impacts allow the vibrator to overcome bulk material strength, affect a large area of influence, and reduce the wall friction. Impacting vibrators are ideal for bulk material that is cohesive or has poor flow characteristics. They are also effective for cleaning out adhering material from empty bins and process vessels.
- The Silent model (SGO) generates a sinusoidal output by creating an air cushion at each end of the piston stroke. NAVCO Silent Pneumatic Piston Vibrators are effective where non cohesive or free flowing material requires only a small amount of energy to produce flow or linear motion is needed.
- The Timed Impact model (IGT) delivers a single, high amplitude impulse each time it is energized. They are operated by a control device that sends intermittent signals to the unit. The impulse of this unit is ideal for evacuating hoppers and process vessels. Specific advantages of the timed impact unit are low noise level, controlled impact, and low air consumption.
- T-Slot Mount – For Flat walled hoppers
- Channel Mount – For curved Hopers
- U Mount for Light Duty
- Slip Mount for portable applications
