Vibrating Feeder

In a crushing plant, the vibrating feeder is a critical component that regulates the flow of raw materials (such as rocks, ores, or aggregates) from a storage hopper or bin into the primary crusher. It ensures a consistent, controlled, and even feed rate, which is essential for optimizing crusher efficiency, preventing overloading, and maintaining stable plant operation. It acts as the interface between material storage and the first stage of size reduction.

The feeder typically consists of a tray or trough mounted on a spring system. An electromagnetic or motor-driven exciter generates controlled vibrations. These vibrations cause the material to hop along the tray's surface in a series of small, rapid movements, propelling it forward in a continuous flow. The feed rate is controlled by adjusting the vibration amplitude and frequency.

This directory entry lists reference parameters that must be verified for the specific model and application. The rated capacity ranges from 5 to 500 t/h, depending on material density and feeder size. Vibration frequency is 16–50 Hz, with higher frequencies for fine materials. Amplitude is adjustable from 1.5 to 4 mm for feed rate control. Motor power ranges from 0.75 to 15 kW, and supply voltage is 220–690 V AC (three-phase, 50/60 Hz) per IEC 60038. Operating temperature is -20 to 60 °C for standard electric components. Ingress protection is IP54–IP65 per IEC 60529, with IP65 for dusty environments. Contact parts are typically made of Q235–16Mn steel per GB/T 700 and GB/T 1591, with stainless steel optional for corrosive materials. Overall dimensions (L×W×H) range from 1500 to 5000 mm in length, with width and height varying. Weight ranges from 500 to 8000 kg, depending on size and material.

When selecting a vibrating feeder, consider material characteristics (density, abrasiveness, moisture), required feed rate, and integration with upstream and downstream equipment. Verify model-specific values and standards with the legal manufacturer or supplier before procurement. Regular maintenance includes checking vibration amplitude, spring condition, and wear on contact surfaces. Failure signs include abnormal noise, reduced feed rate, or excessive vibration. Always consult the manufacturer's documentation for safe operation and maintenance.

The feeder typically consists of a tray or trough mounted on a spring system. An electromagnetic or motor-driven exciter generates controlled vibrations. These vibrations cause the material to hop along the tray's surface in a series of small, rapid movements, propelling it forward in a continuous flow. The feed rate is controlled by adjusting the vibration amplitude and frequency.