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ef electromagnetic vibrating feeder

ef electromagnetic vibrating feeder

s long experience as a vibrating feeder manufacturer, you can find a variety of deck sizes and styles to meet your application needs: 1. Open 2. Enclosed 3. Tubular 4. Grizzly 5. Power Unit Overhead 6. Conveyors with Multiple Power Units 7. Decks with Screen Sections

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Jeffrey Rader provides field service personnel for commissioning, problem solving, and maintenance training.

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Jeffrey Rader electromagnetic feeders operate through controlled, high frequency vibration. This is accomplished with electrical pulses and a machine that is tuned to a mechanical resonant frequency that is higher than the electrical frequency of the power supply . Electrical pulses in the coils create a series of magnetic pulls that attract the armature and the deck. Restoring forces in the bar oppose each pull, causing the armature to spring away from the magnet. At an electrical frequency of 60 cycles per second, the armature and the deck operate at 3,600 times per minute . Material is moved by a series of jumps that correspond to the frequency of the vibrations. The distance the bars travel can be changed by varying the voltage to the coils. With this variation in the length of each jump, or vibration amplitude, the conveying speed of the material on the feeder deck changes, resulting in a capacity rate that fits your re...

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The electrical controllers for our electromagnetic feeders are designed around half wave rectification of AC power. The efficient switching mechanism of silicon controlled rectifiers produces DC impulses without wasteful resistor or rheostat energy loss. Plus, it provides a full 0 100% range of control. All standard controllers comply with NEMA 12 and CSA design standards, and a variety of custom controllers are available . The control cabinet has a 115 volt push button for the magnetic contactor, which is in accordance with current NEC requirements. A separate control transformer is provided. The solid state control circuit includes a soft start feature. A regulator, requiring no additional connection to the feeder, maintains vibration to within ± 0.002quot;, provided the line voltage variations do not exceed +5% and the line frequency is ± 0.5 Hz. Manual or process variable controllers are available. There are also variations of these two basic arrangements...

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Any process variable input transmittable in small current signals 4 20 mA can automatically increase or decrease material flow.

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Varies the flow from 0 100% with a stepless potentiometer. Install the control cabinet at a local or remote location.

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