راهنمای تجهیزات معدنی: What Equipment Should You Use for Automated Feeding in Mining, Metallurgy and Chemical Industries? A Complete Guide to Electromagnetic Vibrating Feeders

The electromagnetic vibrating feeder is used to feed materials evenly or quantitatively from storage bins or other storage devices to receiving equipment. It is equipment for implementing automated production lines and comes in two types: open and enclosed. Electromagnetic vibrating feeders, hoppers, and conveyors can be produced according to requirements. This equipment uses the excitation force generated by the electromagnetic vibrator to make the feeder trough reciprocate along an inclined direction. Under the combined action of the vibrating force and gravity, the materials are continuously thrown along the inclined surface of the trough and conveyed forward, achieving uniform and continuous feeding operations. Why choose an electromagnetic vibrating feeder? First, it has a simple structure with no rotating parts, low failure rate, and easy maintenance. Second, feeding is uniform, and the feed amount can be steplessly adjusted by regulating current or voltage, meeting the needs of automated batching. Third, it has low energy consumption, low operating cost, and is suitable for long-term continuous operation. Fourth, it comes in both open and enclosed types; the enclosed type can effectively prevent dust overflow to meet environmental protection requirements. Fifth, it has a wide range of applications and is extensively used for feeding operations in mining, metallurgy, coal, building materials, chemical, electric power, machinery, and other industries. The electromagnetic vibrating feeder is mainly used for ore feeding in mining, sinter and pellet feeding in the metallurgical industry, raw coal feeding in the coal industry, cement clinker and limestone feeding in the building materials industry, powder and granular raw material feeding in the chemical industry, as well as automatic batching systems, crusher feeding, screening machine feeding, packaging machine feeding, and other applications. The groups needing electromagnetic vibrating feeders include mining companies, metallurgical plants, cement plants, chemical factories, coal enterprises, equipment procurement and maintenance departments of power companies, EPC contractors for bulk material processing production lines, equipment distributors and stockists, and overseas industrial project purchasers. In what circumstances should you choose or replace an electromagnetic vibrating feeder? When it is necessary to feed materials evenly or quantitatively from the silo to the receiving equipment; when automation of production lines and precise batching is required; when the old feeder feeds unevenly, is difficult to adjust, or has a high failure rate; when a new production line needs to be equipped with feeding equipment that is structurally simple and reliably operated; when export projects require adaptation to overseas voltage and automated feeding conditions, priority should be given to electromagnetic vibrating feeders. How to choose an electromagnetic vibrating feeder? Step 1: Confirm feeding capacity and select the corresponding model within the 5–100 t/h range according to production line capacity requirements. Step 2: Confirm the maximum allowable material size and select the corresponding model within 50–150 mm based on material particle size. Step 3: Confirm the type of feeder and choose either open or enclosed type according to environmental protection requirements. Step 4: Confirm voltage and current, standard configuration is 220V, current 1.1–10.6A. Step 5: Confirm double amplitude and gap, double amplitude 1.75 mm, gap 1.9–2.2 mm. Step 6: Confirm installation foundation, must be installed as suspended or seated on a solid support or foundation. Step 7: Confirm control method, can be equipped with variable frequency speed regulation or SCR voltage controller. Step 8: Confirm environmental protection and automation configuration, enclosed type can be equipped with dust removal port and central control system.

Electromagnetic Vibratory Feeder Model and Parameter Table

Model	Feeding Capacity (t/h)	Maximum Allowable Material Size (mm)	Power (kW)	Voltage (V)	Current (A)	Double Amplitude (mm)	Gap (mm)	Total Weight (kg)
GZ 1	5	50	60	220	1.1	1.75	1.9-2.2	75
GZ 2	10	60	150	220	2.3	1.75	1.9-2.2	155
GZ 3	25	70	200	220	3.8	1.75	1.9-2.2	225
GZ 4	50	100	450	220	7	1.75	1.9-2.2	460
GZ 5	100	150	650	220	10.6	1.75	1.9-2.2	656

General Technical Parameter Table

Parameter	Specification
Series	GZ
Type	Electromagnetic Vibratory Feeder
Structure Type	Open / Enclosed
Feeding Capacity	5–100 t/h
Maximum Allowable Material Size	50–150 mm
Power	60–650 W (please check the unit)
Voltage	220 V
Current	1.1–10.6 A
Double Amplitude	1.75 mm
Gap	1.9–2.2 mm
Total Weight	75–656 kg
Core Advantages	Simple structure, uniform feeding, stepless adjustment, low energy consumption, reliable operation, suitable for automated assembly line operation
Supporting Equipment	Feed hopper, conveyor, crusher, screening machine, packing machine, automatic batching system

Dimension drawings and key dimensions

`[Image: /images/electromagnetic-vibrating-feeder-dimension-drawing.webp]`

Material table

Component	Standard material	Optional material	Description
Feeding trough	Carbon steel	Stainless steel, wear-resistant steel plate	Carries materials, requires wear and corrosion resistance
Electromagnetic vibrator	Silicon steel sheet, copper coil	Explosion-proof type	Generates exciting force, core driving component
Damper	Spiral spring, rubber spring	Air spring	Supports and reduces vibration, decreases dynamic load on the foundation
Frame	Carbon steel	Stainless steel	Supports equipment self-weight and vibration load
Control box	Carbon steel/stainless steel	Rainproof and dustproof type	Thyristor voltage regulation or frequency conversion speed control, optional explosion-proof
Enclosure (closed type)	Carbon steel	Stainless steel	Prevents dust overflow, meets environmental protection requirements

Installation method

The electromagnetic vibrating feeder supports both suspended and mounted installation methods and must be installed on a sturdy support or foundation to ensure the base can withstand the equipment's weight and vibration dynamic load; suspended installation uses steel cables or vibration dampers to hang the equipment under the hopper, saving floor space and is suitable for intermediate material yards and automated batching lines with limited space; mounted installation fixes the equipment to a concrete foundation or steel structure support via a base, providing a stable structure suitable for handling large capacities or strong vibration conditions; during installation, it is necessary to ensure that the feeder trough inclination complies with design requirements (usually tilted down 10°-15°), the electromagnetic vibrator is firmly connected to the feeder trough, the vibration dampers are installed vertically, and the gap is adjusted within the range of 1.9–2.2 mm; the inlet and outlet must be properly sealed with the hopper and receiving equipment to prevent material leakage; after installation, a no-load trial run should be carried out to check if the vibration is stable and free of abnormal noise and to confirm that the feeding direction and speed meet requirements; the feeding amount can be steplessly adjusted by adjusting the current or voltage to meet automated batching needs.

Application Scenarios Table

Industry	Application	Recommended Configuration	Key Requirements
Mining	Ore feeding, pre-crushing feeding	GZ3–GZ5, enclosed type	Uniform feeding, wear-resistant, high capacity
Metallurgical Industry	Sintered ore, pellet ore, ore feeding	GZ2–GZ5, open/enclosed type	High-temperature resistant, heavy load, adjustable feeding amount
Coal Industry	Raw coal, coal powder feeding	GZ3–GZ5, enclosed explosion-proof type	Explosion-proof, good sealing, uniform feeding
Building Materials Industry	Cement clinker, limestone feeding	GZ2–GZ4, enclosed type	Wear-resistant, dustproof, quantitative feeding
Chemical Industry	Powdery and granular raw material feeding	GZ1–GZ3, enclosed stainless steel type	Corrosion-resistant, pollution-proof, precise batching
Power industry	Coal feeding, automatic batching	GZ3–GZ5, enclosed type	Large processing capacity, reliable operation, automation
Automatic batching system	Multi-material precise batching	GZ1–GZ3, open type	Stepless adjustable, high accuracy, fast response
Feeding for packaging machines	Powder and granular material packaging	GZ1–GZ2, closed type	Precise feeding, good sealing, pollution-proof

Note

Electromagnetic vibrating feeders are used to supply materials uniformly or quantitatively from storage bins or other storage devices to receiving equipment. They are devices for implementing continuous production automation and come in open and closed types. Feeding capacity is 5-100 t/h, maximum allowable material size 50-150 mm, voltage 220V, double amplitude 1.75 mm, gap 1.9-2.2 mm. For explosive environments, explosion-proof electromagnetic vibrators and explosion-proof control boxes must be selected. For highly abrasive materials, it is recommended to use feed troughs made of wear-resistant steel.

## Technical FAQ

1. What is an electromagnetic vibrating feeder?

An electromagnetic vibrating feeder is used to supply materials uniformly or quantitatively from storage bins or other storage devices to receiving equipment. It is a device for implementing continuous production automation and comes in open and closed types. Electromagnetic vibrating feeders, feeding hoppers, and conveyors can be manufactured as required.

2. What is the working principle of an electromagnetic vibrating feeder?

The eccentric blocks in the electromagnetic vibrator rotate to generate centrifugal force, causing the movable parts such as the feeding trough to perform forced continuous circular or nearly circular motion. Materials then perform continuous throwing motion on the inclined trough surface and are continuously and evenly delivered to the receiving port.

3. What models of electromagnetic vibrating feeders are available?

The models of electromagnetic vibrating feeders include GZ 1, GZ 2, GZ 3, GZ 4, and GZ 5.

4. What is the feeding capacity and maximum allowable particle size of the electromagnetic vibrating feeder?

Feeding capacity is 5-100 t/h, and the maximum allowable particle size of the material is 50-150 mm, depending on the model.

5. What are the power, voltage, and current of the electromagnetic vibrating feeder?

Power is 60-650 (marked as kW in the picture, should actually be W), voltage is 220V, current is 1.1-10.6A, depending on the model.

6. What are the double amplitude and gap of the electromagnetic vibrating feeder?

Double amplitude is 1.75 mm, gap is 1.9-2.2 mm, consistent across all models.

7. What is the total weight of the electromagnetic vibrating feeder?

Total weight is 75-656 kg, depending on the model.

8. What are the wear parts of the electromagnetic vibrating feeder?

Feeding trough, shock absorbers, electromagnetic vibrator coil, etc., among which the feeding trough and shock absorbers are the main wear parts. It is recommended to use wear-resistant steel plate or rubber spring materials.

9. What are the common faults of the electromagnetic vibrating feeder?

Uneven feeding (unstable voltage or improper gap adjustment), abnormal vibration (damaged shock absorbers or loose foundation bolts), overheating of the electromagnetic vibrator (coil short circuit or overload), excessive noise (improper gap or loose parts), decrease in feeding amount (worn feeding trough or insufficient voltage).

10. Does the electromagnetic vibrating feeder need a foundation?

It depends on the installation method. Suspended installation must be mounted on a sturdy bracket or steel structure; floor installation must be mounted on a solid concrete foundation, which should support the weight of the equipment and vibration load, with foundation bolts fixed.

11. What materials is the electromagnetic vibrating feeder suitable for?

Suitable for granular and powder materials in mining, metallurgy, coal, building materials, chemical, electric power, machinery and other industries, such as ore, sintered ore, raw coal, cement clinker, limestone, and chemical raw materials.

12. Can the electromagnetic vibrating feeder be customized?

The feeding capacity, material of the feeding trough (wear-resistant steel plate/stainless steel), open or closed type, motor configuration (explosion-proof), control method (thyristor voltage regulation/frequency conversion speed regulation), central control system, etc. can be customized.

13. What is the difference between an electromagnetic vibrating feeder and a motor vibrating feeder?

An electromagnetic vibrating feeder uses an electromagnetic vibrator to generate excitation force. It has a simple structure with no rotating parts, and the feeding amount can be steplessly adjusted, making it suitable for automated batching. A motor vibrating feeder uses a vibrating motor to generate excitation force. Its structure is relatively complex but has a larger handling capacity, making it suitable for feeding large materials.

14. What is the difference between open type and closed type electromagnetic vibrating feeders?

The open type has a simple structure and is suitable for situations with no dust pollution requirements. The closed type is equipped with a closed cover on the feeding trough, which can effectively prevent dust leakage, meet environmental protection requirements, and is suitable for feeding powdery and toxic or hazardous materials.

15. How to adjust the feeding amount of an electromagnetic vibrating feeder?

The feeding amount can be steplessly adjusted by regulating the current or voltage. It can be equipped with a thyristor voltage regulator or a frequency converter to achieve automated batching control.

16. How to maintain an electromagnetic vibrating feeder?

Regularly check the wear condition of the feeding trough and replace or adjust in time; regularly check the state of the dampers and replace any failed springs; regularly check the insulation of the electromagnetic vibrator coil; regularly check if the base bolts and connecting bolts are loose; regularly clean the accumulated material and foreign objects in the feeding trough; regularly check the operating status of the control box.

17. Does the electromagnetic vibrating feeder comply with RoHS and REACH?

Standard equipment complies with RoHS and REACH regulations and does not contain SVHC (Substances of Very High Concern). Specific details are subject to the product test report.

18. How to select the model of an electromagnetic vibrating feeder?

Select the model within the 5-100 t/h range according to the production line capacity requirements, choose the model corresponding to the maximum allowable particle size of 50-150 mm based on the material particle size, select open or closed type according to environmental requirements, and choose the control method according to automation needs.

19. How can electromagnetic vibrating feeders be used in conjunction with chain plate feeders and shaftless drum screens?

The chain plate feeder is responsible for the continuous feeding of large materials, the shaftless drum screen is responsible for washing minerals to remove mud and classifying medium and fine particles, and the electromagnetic vibration feeder is responsible for the precise feeding of medium and small particles and powdery materials. These three can form a complete bulk material processing production line, achieving the full process operation from coarse feeding, screening and grading, to precise batching.

20. Why is the power of the electromagnetic vibration feeder so low?

The power indicated in the picture table is 60-650 kW. Considering the 220V voltage and 1.1-10.6A current, the actual power unit should be watts (W), that is 60-650W. The electromagnetic vibration feeder has low power because it works using the principle of electromagnetic resonance, which is energy-efficient, has low operating costs, and is suitable for long-term continuous operation.

Technical FAQ

What information is needed for a feeder or conveyor?

Send capacity, material density, lump size, conveyor length, inclination, start-stop frequency and required control mode.

Why is starting torque important?

A loaded conveyor or feeder may need much higher starting torque than its running load. Check the motor, gearbox and starting method together.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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