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LIPU vibrating feeders are designed to provide continuous and controlled feeding of rock, ore, and aggregate from hoppers or storage bins to downstream crushing and screening equipment.
They are commonly installed before primary crushers to regulate material flow, reduce sudden load changes, and help maintain more stable operation throughout the crushing circuit.
A vibrating feeder is a material-handling machine used to transfer bulk solids from a hopper or storage bin to the next stage of processing at a controlled rate.
In crushing plants, it is commonly installed before a jaw crusher or other primary crushing equipment.
Instead of allowing large quantities of material to enter the crusher at once, the feeder meters the material continuously. This helps reduce uneven crusher loading and supports more stable plant operation.
Depending on the feeder configuration, grizzly bars can also remove part of the undersize material before primary crushing.
Material enters the feeder from a hopper or storage bin.
The vibration system causes the feeder trough to move in a controlled reciprocating motion. This vibration advances the material toward the discharge end and into the downstream crusher, screen, or conveyor.
The feeding rate can be adjusted according to:
For feeders equipped with grizzly bars, smaller particles can pass through the openings before the remaining material enters the primary crusher.
This can reduce unnecessary crushing of material that is already below the required feed size.
The vibrating feeder is not only a conveying device. Its main process value is to regulate the flow of material entering the crushing circuit.
Large fluctuations in feed rate can cause uneven crusher loading.
A controlled feeder helps supply material more consistently so that the crusher can operate under more stable conditions.
Direct discharge from a hopper can allow too much material to enter the crusher at one time.
A vibrating feeder meters the material and reduces sudden surges.
When grizzly bars are used, part of the undersize material can bypass the primary crusher.
This can reduce unnecessary crushing load and improve the efficiency of the primary crushing stage.
The feeder should be matched to the capacity of the crusher and the complete production line.
A feeder that is too small can restrict plant capacity, while an oversized or poorly controlled feeder may overload downstream equipment.
A typical vibrating feeder consists of:
The feeding trough carries the material, while the vibration system provides the force required to move it forward.
Springs support the vibrating structure and allow controlled movement during operation.
For grizzly-type feeders, the bar section provides preliminary separation of smaller material before crushing.
LIPU vibrating feeders can be used with a wide range of rock, ore, and aggregate materials.
Typical materials include:
Typical applications include:
The feeder should be selected according to material size, bulk density, moisture, stickiness, required capacity, and downstream equipment.
The current LIPU vibrating feeder range includes both GZD and ZSW series models.
The listed GZD models cover:
The listed ZSW models cover:
The two series are available in different trough sizes, motor powers, capacities, and installation dimensions.
The correct series and model should be selected according to the project requirements rather than by model name alone.
For project selection, confirm:
Note: Exact structural differences between individual GZD and ZSW configurations should be confirmed from the corresponding equipment drawing or technical specification before final selection.
Some crushing plants require only controlled feeding, while others also benefit from preliminary screening.
| Factor | Feeder Without Grizzly | Feeder With Grizzly |
|---|---|---|
| Main function | Controlled feeding | Feeding + preliminary screening |
| Fine-material bypass | No | Yes |
| Typical feed | More uniform material | Mixed-size blasted rock |
| Primary crusher load | All material enters crusher | Some undersize material can bypass crusher |
| Typical position | Hopper discharge or transfer point | Before primary crusher |
A grizzly-type feeder can be useful where the raw feed contains a significant amount of material that is already smaller than the primary crusher feed requirement.
However, the bar spacing should be selected according to the process and required bypass size.
Vibrating feeder selection should be based on the complete feeding and crushing system.
The maximum lump size must remain within the allowable input size of the selected feeder.
The current listed models cover input sizes from 400 mm to 650 mm.
Feeder capacity should be matched to the required plant throughput and the capacity of the downstream crusher.
The listed models cover approximately 80–600 t/h.
The feeder should have sufficient operating margin for normal fluctuations in feed conditions.
Capacity can be affected by material density.
Dense ore and lighter aggregate may behave differently even when the nominal volumetric feed rate is similar.
The proportion of large lumps, intermediate particles, and fines affects how material moves across the feeder.
Mixed-size blasted rock may benefit from grizzly pre-screening.
Wet or sticky material can reduce flowability and may accumulate on the feeder or grizzly bars.
These conditions should be considered during equipment selection.
The hopper discharge opening should be matched to the feeder width and material flow characteristics.
Poor hopper-feeder matching can cause bridging, uneven loading, or restricted capacity.
The feeder should be selected together with the primary crusher.
For example, a jaw crusher requires a stable feed rate that matches its feed opening, crushing capacity, and operating conditions.
A vibrating feeder normally works as part of a complete crushing and screening system.
For hard rock:
Vibrating Feeder → Jaw Crusher → Multi-Cylinder Hydraulic Cone Crusher → Screening → Finished Aggregate
For limestone and suitable medium-hard material:
Vibrating Feeder → Jaw Crusher → Impact Crusher → Screening → Finished Aggregate
For mobile crushing applications, the feeder can be integrated directly into a Mobile Crushing and Screening Plant.
The final configuration should be selected according to:
| Model | Funnel Size (mm × mm) | Input Size (mm) | Capacity (t/h) | Motor Power (kW) | Weight (kg) | Dimensions (mm) |
|---|---|---|---|---|---|---|
| GZD-800×3000 | 800×3000 | 400 | 80–120 | 2.2 | 3195 | 3110×1800×1600 |
| GZD-960×3800 | 960×3800 | 500 | 120–210 | 2.2×2 | 3375 | 3850×1950×1630 |
| GZD-1100×4200 | 1100×4200 | 580 | 200–430 | 3.7×2 | 4400 | 4400×2050×1660 |
| GZD-1100×4900 | 1100×4900 | 580 | 280–500 | 5.5×2 | 4675 | 5200×2050×1700 |
| GZD-1300×5200 | 1300×5200 | 650 | 450–600 | 7.5×2 | 5400 | 5200×2350×1750 |
| Model | Funnel Size (mm × mm) | Input Size (mm) | Capacity (t/h) | Motor Power (kW) | Weight (kg) | Dimensions (mm) |
|---|---|---|---|---|---|---|
| ZSW-950×3800 | 950×3800 | 500 | 96–160 | 11 | 4100 | 3882×2224×2121 |
| ZSW-1100×4200 | 1100×4200 | 580 | 120–240 | 15 | 4745 | 4310×2500×1365 |
| ZSW-1100×4900 | 1100×4900 | 580 | 120–280 | 15 | 5420 | 4957×2500×1365 |
| ZSW-1100×5900 | 1100×5900 | 630 | 160–350 | 22 | 6100 | 6000×2500×2150 |
| ZSW-1300×5900 | 1300×5900 | 630 | 250–400 | 37 | 6300 | Verify before publishing |
The specifications above are based on the current data published on the LIPU vibrating feeder page.
Actual capacity can vary according to material bulk density, feed gradation, moisture, feeder settings, hopper conditions, and downstream equipment.
Vibrating feeders are commonly installed at the beginning of crushing and mineral-processing circuits.
Typical installations include:
At a project site, the feeder should be evaluated together with the hopper, primary crusher, conveyors, screening equipment, and control system.
This helps ensure that the complete line operates at a balanced feed rate.
What is the main purpose of a vibrating feeder?
A vibrating feeder controls the flow of bulk rock, ore, or aggregate from a hopper to downstream equipment such as a crusher, screen, or conveyor.
Can a vibrating feeder remove fine material before crushing?
Yes, if the feeder is equipped with grizzly bars. Smaller material can pass through the bar openings and bypass the primary crusher.
How should feeder capacity be matched with a jaw crusher?
The feeder should provide enough capacity to support the crusher without continuously overloading it. Feed size, crusher opening, material characteristics, and required plant throughput should all be considered.
Can a vibrating feeder handle wet or sticky material?
It can handle some moist material, but high moisture and sticky clay can reduce material flow and cause buildup. These conditions should be considered when selecting the feeder configuration.
What information is needed to select a vibrating feeder?
Provide the material type, maximum feed size, required capacity, bulk density, moisture condition, hopper outlet size, required grizzly spacing, and downstream crusher model.
We provide a variety of mining and processing equipment, including feeders, rock crushers, grinders, classifying and screening machines, washing machines, gravity separators, flotation machines, magnetic separators, electric separators, dewatering equipment and laboratory mineral processing equipment.
