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Magnets

Sintered Ferrite Magnets from TyTek Industries

Sintered Ferrite Magnet Manufacturing

Grade: SF-2236

This grade of sintered ferrite is an isotropic, dry-pressed strontium ferrite developed for applications requiring high intrinsic coercivity levels. The magnetic properties are slightly different in the pressing and radial directions.

The most common applications for magnets made from this sintered ferrite include latches, axial magnetic couplings for water meters, frictionless bearings for watt-hour meters, stepper motors and magnetic sensors.

Grade: SF-2331

Grade SF-2331 is an isotropic, dry-pressed strontium ferrite material. Its magnetic properties are slightly different in their pressing and radial directions.

Typically, applications for magnets made from this material include latches, axial magnetic couplings for water meters, frictionless bearings for watt-hour meters, stepper motors and magnetic sensors.

Grade: SF-3642

High coercivity is noteworthy in this anisotropic, wet-oriented pressed strontium ferrite material. SF-3642 was developed specifically for applications which require high coercivity.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperature, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-3648

SF-3648 is a premier anisotropic, wet-oriented, pressed strontium ferrite material. It was developed for applications requiring high induction levels with maximum resistance to demagnetization.

This material is particularly suitable for PM starter motors. Note: with isotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperature, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-3831

In this case, the grade offers an anisotropic, wet-oriented pressed strontium ferrite magnet material that is recommended for applications requiring high flux density and moderate coercivity. Automotive auxiliary motors, fuel pumps and sensing devices are typical examples.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperatures, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-3838

We developed this grade for applications requiring high flux density and high coercivity. SF-3838 is an anisotropic, wet-oriented pressed strontium ferrite material. It is recommended for such applications as automobile motors and linear motors.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperatures, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-3932 

Grade SF-3932 is an anisotropic, wet-oriented pressed strontium ferrite material recommended for applications that require high flux density and moderate coercivity (compare with SF-3831). Automotive auxiliary motors, fuel pumps and sensing devices are typical examples.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperatures, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-3939

This is a premier anisotropic, wet-oriented pressed strontium ferrite material.  It was developed for applications requiring high induction level with high resistance to demagnetization. We recommend SF-3939 for applications like automobile motors and linear motors.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperatures, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

Grade: SF-4130

This is a high-performance, anisotropic wet-oriented pressed strontium ferrite material. Developed for applications which require high flux density, this material is particularly recommended for brushless motor rotors and applications requiring magnets on shafts.

In anisotropic strontium ferrite material, coercivity decreases with decreasing temperature. To prevent irreversible flux loss at low temperature, the operating point of the magnet should be designed to be higher than the knee of the intrinsic demagnetization curve measured at the lowest temperature at which the magnet may be used.

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