Injection Molded Ferrite Magnet Grades

Injection Molded Ferrite Magnets are made by combining NdFeB powders with Nylon 6, Nylon 12, PPS and other resins. The ratios between magnetic powders and resins are endless, therefore many grades exist depending on magnetic performance, temperature resistance, and mechanical strength. These materials can be molded directly over or into another polymer or metal component. The shapes and sizes are endless, as are the magnetization patterns that can be achieved either in the molding tool or by utilizing a magnetizing fixture. The following tables list several common injection molded ferrite grades. We have the capability to formulate any desired grade of magnetic material based on customer specified parameters.

Ferrite
Grade

Br (Gauss)Hc
(Oe)		Hci
(Oe)		(BH)max
(MGOe)		BH Curve

BIF-4

1350 – 1550630 – 8351150 – 15000.4 – 0.6

BIF-12

2450 – 26501350 – 16701670 – 19651.4 – 1.6

BIF-14

2550 – 28001390 – 15901750 – 20651.6 – 1.9

BIF-16

2800 – 29501430 – 15901590 – 18301.9 – 2.1

Temperature Properties

Reversible
Temperature Coefficients
Br%/°C		Reversible
Temperature Coefficients
Hcj%/°C		Max Working
Temp.
Tmax °C
PA6		Max Working
Temp.
Tmax °C
PA12		Max Working
Temp.
Tmax °C
PPS		Mold
Temp.
Range
Tmold °C
PA6		Mold
Temp.
Range
Tmold °C
PA12		Mold
Temp.
Range
Tmold °C
PPS

BIF-4

-0.180.415012018070-15020-120135-175

BIF-12

-0.18
0.415012018070-15020-120135-175

BIF-14

-0.180.415012018070-15020-120135-175

BIF-16

-0.180.415012018070-15020-120135-175

Physical Properties

Density
g/cm3		Hardness
R		Tensile Strength
Mpa
PA6
Tensile Strength
Mpa
PA12		Tensile Strength
Mpa
PPS		Water Absorption %
PA6		Water Absorption %
PA12		Water Absorption %
PPS

BIF-4

3.5 – 3.788-13118-14512 – 17113 – 1500.3 – 110.5 – 3.2.02 – .05

BIF-12

3.3-3.790 -13020 – 14013 – 17013 – 1500.3 – 110.5 – 3.2.02 – .05

BIF-14

3.6-3.892-13320 – 14213 – 17113 – 1500.3 – 110.5 – 3.2.02 – .05

BIF-16

3.6-3.895-13522 – 14515 – 17113 – 1500.3 – 110.5 – 3.2.02 – .05