magnetite powders
PRODUCTS CATALOG
Magnetic powder:
Flexible magnets:

magnetite powder Because super fine Magnetite powder has magnetic and colorable character, it is mainly used for producing magnetic toner and magnetic printing ink for laser printers and copiers. In this field, more special demands are needed, such as granularity, hue, magnetic performance and particle distribution, etc.

Unimagnet adopts the magnetite powder producing line of its own intellectual property to produce super fine magnetite powder suitable for producing magnetic toner and magnetic printing ink for various types laser printer and copier. The super fine magnetite powder’s particle size can reach nanometer grade, and the stable crystalloid shape can ensure high quality and stable magnetic performance.

Typical products of magnetite powder for printer

Item

Unit

UMMF-1

UMMF-2

UMMF-3

Saturation
Magnetization

emu/g

85

85

85

Remanence

emu/g

7.8

8.0

10.5

Coercivity

Oe

50-60

70-80

100-120

Particle size

μm

0.25-0.30

0.30

0.30

Oil absorption

mg/100g

18-20

20-22

23-25

Specific surface
area

m2/g

7

8

9

Tapped density

g/cm3

0.85

0.85

0.85

FeO contain

Wt%

23.5-25.5

23.5-25.5

23.5-25.5

Tfe contain

Wt%

68-70

68-70

68-70

PH

 

7.0

7.0

7.0

Particle shape

 

Spherical

Cubic

Cubic

Remark

Custom-build specs is welcomed.