Experimental research on the fluidized characteristics of four magnetic particles with different average diameters (from 213 μm to 512 μm) was carried out in this study.The effects of such factors as intensity of the magnetic field and diameter of the particles

on the stable zone in the magnetically fluidized bed were investigated and discussed.Based on the experiments

by using the dimensionless analysis method

an experimental correlation to calculate the stable zone with three dimensionless numbers

i.e. the ratio of magnetic potential to gravity potential Er

Archimedes number Ar and Reynolds number Re

was proposed.In addition

the level of significance of the correlation was tested

and the results showed that the most significant factor to influence the stable fluidization zone was Er

and Ar was the second

while Re was the least significant factor.