ELECTROMAGNETIC
VIBRO FEEDER TRAY TYPE
A controlled feeding solution for powders, granules, pellets and small components. The electromagnetic exciter and tuned leaf-spring system generate a repeatable conveying motion, while the controller adjusts output to suit the downstream process.
HOW THE VIBRO FEEDER WORKS
RECEIVE
Material enters the hopper from a bag, bin or upstream process.
SET BED DEPTH
The adjustable gate establishes a stable material layer on the tray.
GENERATE VIBRATION
The controller energizes the electromagnetic exciter.
GUIDE MOTION
Inclined leaf springs direct the controlled oscillating movement.
ADVANCE PRODUCT
Micro-throw action moves the material forward without a belt or screw.
DISCHARGE
A uniform, adjustable feed is delivered to the downstream equipment.
SYSTEM CONFIGURATION
TYPICAL APPLICATIONS
Weigher and packaging feed
Mixer / blender charging
Mill, sifter and reactor feed
Controlled bin discharge
Batch dosing and metering
Conveyor-to-process transfer
STANDARD CAPACITY & PRELIMINARY SIZING
Catalogue screening basis: free-flowing, dry material at 0.5 kg/L (500 kg/m3), stable hopper flow and a level installation. Use this sheet only for preliminary tray-width selection before material testing and dynamic design.
DESIGN BASIS
- Free-flowing material
- Bulk density: 0.5 kg/L
- Ambient temperature
- Level open tray
- Stable inlet bed depth
- Continuous operation
INDICATIVE STANDARD MODEL SELECTION
|
MODEL
|
TRAY WIDTH
|
TYPICAL LENGTH
|
BED DEPTH
|
INDICATIVE CAPACITY AT 0.5 kg/L
|
TYPICAL DUTY
|
|---|---|---|---|---|---|
|
EMVF-150
|
150 mm
|
500-1000 mm
|
20-40 mm
|
0.15-0.60 t/hr
|
Fine dosing/small feed
|
|
EMVF-250
|
250 mm
|
750-1500 mm
|
25-60 mm
|
0.4-1.8 t/hr
|
Process dosing
|
|
EMVF-350
|
350 mm
|
1000-1800 mm
|
30-75 mm
|
0.8-4.0 t/hr
|
General process feed
|
|
EMVF-500
|
500 mm
|
1200-2200 mm
|
40-90 mm
|
1.5-7.0 t/hr
|
Bulk process feed
|
|
EMVF-650
|
650 mm
|
1500-3000 mm
|
50-110 mm
|
3.0-12.0 t/hr
|
Heavy-duty feed
|
|
EMVF-800
|
800 mm
|
1800-4000 mm
|
60-130 mm
|
5.0-20.0 t/hr
|
High-capacity feed
|
PRELIMINARY CAPACITY RELATION
Q = 3600 x rho x B x H x V x K
Q mass flow [kg/hr]
BXH material bed area [m2]
rho bulk density [kg/m31
V/K velocity/loading factor
WHAT CHANGES THE CAPACITY
MATERIAL
Low density, cohesive, moist, fragile or irregular products may require a wider tray or reduced output.
HOPPER FLOW
Bridging, rat-holing or an unstable gate opening prevents a consistent bed from reaching the tray.
TRAY GEOMETRY
Width, length, sidewall height, inclination and surface finish influence residence time and flow.
DYNAMIC TUNING
Exciter force, frequency, spring stiffness and moving mass must be tuned as one mechanical system.
PROCESS CONTROL
Controller range, load feedback, upstream level and downstream permissives determine repeatability.
FINAL ENGINEERING CHECK
Confirm actual material data
Verify hopper and interfaces
Calculate required feed range
Tune tray, springs and exciter
Conduct material trial / FAT
Need the Right ELECTROMAGNETIC VIBRO FEEDER
for Your Process?
Our engineers will help you select, size and configure the ideal system for your application.
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