When choosing a vibrating feeder, there are several factors to consider. First, you should consider the type of material that needs to be fed. Different types of materials require different vibrating frequencies and capacities. You will also need to consider the size of the material particles that need to be fed and the amount of time they need to be fed. Additionally, you should look into the power requirements of the feeder, as well as the range of motion it can offer. Finally, you should consider any additional features that the feeder may have, such as function of regulating flow rate or adjustable amplitude.
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The purpose of a vibrating feeder is to feed material at a controlled rate and in a uniform manner. By vibrating the material, it can be evenly distributed on a conveyor belt or other moving parts, allowing for efficient processing and accurate control of the materials. Vibrating feeders can also be used to sort materials or separate them into different grades. Additionally, they can help prevent clogging and reduce wear on other components.
Tuning a vibratory feeder involves adjusting the amplitude, frequency, and stroke of the machine. The amplitude is adjusted to adjust the rate at which the material is fed through the machine. The frequency is adjusted to regulate the speed of the vibration, while the stroke is adjusted to control the volume of material that is fed. To tune a feeder correctly, you need to determine the desired rate, speed, and volume of material as well as make sure the feeder is operating smoothly and efficiently.
There are two basic designs available when selecting a vibrating (linear) feeder: electromagnetic and electromechanical. Air powered vibrating feeders are basically an alternate to the electromechanical feeders as they have the same simple brute force design concept &#; the vibratory drive is directly attached to the tray. Our challenge is to obtain as much information about the application to make recommendations or at least provide the advantages and disadvantages so the customer has enough information to make an informed decision in order to select the best possible solution for their application.
In essence, all three styles could be suitable, but it&#;s quite possible that only one of the three could be the most advantageous. The following are the basic advantages and disadvantages of these three feeders.
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Electromagnetic Feeders &#; The Electromagnetic Feeders provide variable intensity with typically fixed frequency of vibrations per minute. They only require single-phase power, offer quick stopping, and are ideal for cold weather installations. However, they are sensitive to line voltage fluctuations and temperature swings, can require tuning if there are rate or load changes, require skilled maintenance, and are not suitable for hazardous areas.
Electromechanical Feeders &#; The Electromechanical Feeder design is the most versatile as the power is provided by twin rotary electric vibrators where a multitude of forces and frequencies can provide a wide range of stroke and frequency combinations. You can further enhance the flexibility of this design by controlling the twin vibrators with a VFD (variable frequency drive) which provides a quick and easy adjustment without having to manually adjust the eccentric weights. Since this design has the twin vibrators synchronizing to produce linear force, these feeders do not stop shaking immediately after power is turned off as the eccentric weights coast to a stop. A VFD with dynamic braking or a starter with a dynamic brake will end the vibration much more quickly to limit the erratic motion at shut down. This design provides the quietest operation and is less susceptible to head loads. Explosion proof vibrators are available for operation in hazardous locations.
Air Powered Feeders &#; This low-cost design is ideal for hazardous locations as the drive is an air-cushioned piston vibrator which produces linear force and can also handle high temperatures. It&#;s the simplest to maintain, and the controls are the most economical of the three in which a simple regulator that can adjust the air pressure will vary force & frequency output. While this feeder doesn&#;t require tuning, there are limitations to the physical size of the tray & feed rates, it&#;s less suitable for outdoor operation as freezing airlines are a problem and is susceptible to head load.
Consider the advantages and disadvantages outlined above to determine the best possible solution for your requirements. While this information is provided as an aid, you should always enlist the assistance of an application specialist to select the proper feeder for your application. Call or click today for more information!
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