I. Working Principle

The motor drives the eccentric weight (eccentric block) to rotate at high speed, generating a centrifugal excitation force; the vibration force is transmitted through the base to the screen body or silo wall, causing the equipment to produce high-frequency, small-amplitude vibration, which breaks up material agglomerates, eliminates arching and bridging in the silo and promotes smooth material flow.

II. Core Components of the Assembly (Electric Vibration Motor Assembly, Most Commonly Used)

1. Vibration motor main unit: Stator, rotor, bearings and adjustable eccentric blocks at both ends; loosening the pressure plate changes the angle of the eccentric blocks, thereby adjusting the excitation force.

2. Mounting base/bracket: Cast iron welded base, serving as the vibration transmission carrier, with anchor bolt holes.

3. Sealing components: end caps, sealing rings, dustproof and waterproof.

4. Junction box and cable

5. Optional accessories: shock-absorbing pads, explosion-proof housing, vibration controller, time delay switch

III. Three Main Types

1. Electric vibrator assembly (three-phase vibration motor)

Most versatile; 380V/220V; protection rating IP54-IP55; capable of 24-hour continuous operation; explosion-proof EX version optional; mostly used on vibrating screens and silo exteriors.

English: Electric Vibrator Motor Assembly

2. Pneumatic Vibrator Assembly

Driven by compressed air; no electric sparks, high explosion-proof safety; suitable for dusty, flammable and explosive workshops; requires a matching air compressor.

English: Pneumatic Vibrator Assembly

3. Electromagnetic vibrator assembly

High-frequency reciprocating vibration; no rotating parts; suitable for small silos; relatively small amplitude.

English: Electromagnetic Vibrator Assembly