Light-Duty Electromagnetic Vibratory Feeder

      The electromagnetic vibratory feeder is an elastic system based on the principle of directional forced vibration of a two-mass system. Its core power source is an electromagnetic exciter; when the equipment is energized, a unidirectional pulsating current—rectified by half-wave rectification—flows through the coil, generating high-frequency pulsed electromagnetic attraction between the iron core and the armature. During the positive half-cycle of the AC, the electromagnetic force attracts the armature, driving the trough backward while the main spring deforms and stores potential energy. In the negative half-cycle, the electromagnetic force vanishes, and the spring releases its stored energy, pushing the trough forward. This cyclical motion causes the trough to perform reciprocating linear vibrations at a frequency of 3,000 cycles per minute. Owing to the typical 10°–15° inclination angle of the trough, the material is continuously propelled forward in a parabolic trajectory under the combined action of inertial and gravitational forces, thereby achieving uniform and stable feeding and conveying.

Features and Advantages

• Precise Quantitative Feeding: Supports stepless speed regulation, allowing adjustment of the feed rate to meet automated batching requirements.
• Simple and Durable Structure: Lacks complex transmission components, ensuring stable operation, low failure rate, and easy maintenance.
• Energy-Efficient and Low-Noise Operation: Utilizes the electromagnetic vibration principle, resulting in low energy consumption and minimal noise, making it well suited for continuous production environments.
• Low Wear and Long Service Life: The material moves in a gentle parabolic trajectory, reducing friction within the trough and extending the equipment’s service life.
• Flexible Installation: Supports either suspended or base-mounted installation, allowing for adaptable layout according to site conditions.

Optional Configurations

• Structural Forms Available: Open type, fully enclosed type, light trough type, flat trough type, and wide trough type.
• Installation Methods Available: Suspended mounting (hung beneath the hopper) or base mounting (directly installed on a foundation).
• Trough Material Options: Ordinary carbon steel, wear-resistant alloy steel, and food-grade stainless steels 304/316L (suitable for the food and pharmaceutical industries).
• Control System Options: Manual control box or fully automatic PLC remote control (compatible with 0–5 V or 4–20 mA signal interfaces), enabling integration with the entire production line.

Applications

• Mining and Metallurgy: Installed at the discharge outlet of hoppers and at the front end of conveyor systems to provide uniform feeding prior to crushing and screening.
• Coal and Building Materials: Mounted on coal-handling systems and raw-material conveyors to ensure continuous, uniform feeding during batching and transportation processes.
• Food and Pharmaceuticals: Positioned at feeding inlets and along conveying lines to deliver hygienic, precisely metered quantities before grinding, sieving, and packaging.
• Chemical and Light Industries: Installed at hopper outlets and within conveying systems to enable automated, quantitative feeding during batching and mixing operations.

Handled Materials

• Granular and Small-Bulk Materials: Coal, ores, aggregates, plastic pellets, fertilizer granules, etc.
• Powdered Materials: Flour, starch, coal dust, cement powder, chemical powders, etc.