INJECTION MOLDED FERRITE MAGNETS

Cost-Effective Injection Molded Ferrite Magnets

Injection molded ferrite magnets are a type of bonded magnet. They are made by mixing ferrite powder with a binder and then forming the material through injection molding.

Ferrite magnetic powder does not contain rare earth elements. Its magnetic performance is lower than NdFeB, but it offers lower cost, stable chemical properties, and good corrosion resistance. Injection molded ferrite magnets are suitable for home appliance motors, fans, water pumps, and other cost-sensitive magnetic components.

The manufacturing process is basically the same as that of injection molded NdFeB magnets. For a detailed explanation, please refer to Injection Molded NdFeB Magnets Complete Guide.

Magnetic Performance of Injection Molded Ferrite Magnets

The following are typical magnetic performance references for Injection Molded Ferrite Magnets.

No.	グレード			FA11	FA15	FA19	FA20T	FA22T
Base Material	Resin Binder			PA6
Magnetic Properties	Residual Induction	Br	メートルT (Gs)	213 2130	245 2450	284 2840	293 2930	305 3050
	強制力	Hcb (Intrinsic)	kA/m (Oe)	162 2040	183 2300	195 2450	193 2420	191 2400
	強制力	Hci (Intrinsic)	kA/m (Oe)	279 3500	251 3150	235 2950	223 2800	229 2870
	最大エネルギー製品	(BH)max	kJ/m³ (MGOe)	8.8 1.10	11.9 1.50	15.6 1.96	16.6 2.08	18.1 2.27
Mechanical Properties	引張強度		MPa	85	85	90	85	80
	曲げ強度		MPa	160	165	170	160	145
	Izod Impact Strength		kJ/m²	50	35	19	15	11
Physical Properties	密度		g/cm³	3.03	3.32	3.60	3.70	3.85
	Melt Flow Rate (270°C/10kg)		g／10分	100	80	120	80	50
	Rev. Temp. Coef. of Br		%/K	-0.19	-0.19	-0.19	-0.19	-0.19
	Rev. Temp. Coef. of Hci		%/K	0.13	0.13	0.13	0.13	0.13
	Molded Shrinkage		%	0.7	0.4	0.4	0.4	0.3
Injection Parameters	Pre-drying Temp.		°C	100–120	100–120	100–120	100–120	100–120
	Pre-drying Time		hr	4–8	4–8	4–8	4–8	4–8
	Injection Temp.		°C	250–270	260–280	265–285	270–290	275–295
	Mold Temp.		°C	60–80	60–80	60–80	60–80	60–80
	Pressure		bar	60–90	70–100	60–90	65–95	70–100
	Speed		V%	40–70	45–75	45–75	45–75	50–80

Why Choose TOPMAG Injection Molded Ferrite Magnets?

24 Years of Manufacturing Experience with Full Process Control
From mold design and magnetic powder formulation to injection molding, magnetization, and inspection, TOPMAG manages the complete production process in-house. This helps maintain stable lead times and consistent product quality.

Custom Manufacturing from Drawings with Fast Prototyping
We support custom shapes, dimensions, and magnetization methods based on customer drawings. Sample production can be completed within 5–15 days, with inquiry responses within 24時間.

Comprehensive Inspection System
TOPMAG is equipped with magnetic performance testing and dimensional inspection equipment. Incoming materials, production processes, and finished products are inspected throughout the entire process. Each production batch can be traced.
Our products are manufactured under ISO 9001 そして IATF 16949 quality management systems and comply with RoHS そして REACH environmental requirements.