Hard Ferrite of Permanent magnets

Hard Ferrite description: We have rich experience in supplying Europe motor users, we have TS16949 certified.

Permanent ferrite magnets are made of hard ferrites, which have a high coercivity and high remanence after magnetization. These are composed of iron and barium or strontium oxides. In a magnetically saturated state they conduct magnetic flux well and have a high magnetic permeability. This enables these so-called ceramic magnets to store stronger magnetic fields than iron itself. They are cheap, and are widely used in household products such as refrigerator magnets. The maximum magnetic field B is about 0.35 tesla and the magnetic field strength H is about 30 to 160 kiloampere turns per meter (400 to 2000 oersteds).[3] The density of ferrite magnets is about 5g/cm3.

Available Property: 

Grade: Y10T, Y20, Y22H, Y23, Y25, Y26H, Y27H, Y30, Y30BH, Y30-1, Y10T, Y20-2, Y32, Y33, Y35

USA STANDARD: C1, C5, C7, C8 (C8A), C9, C10, C11

Dimension: Customized

Specifications

We supply all kinds of Hard Ferrite, various shape and specification is available.

Hard Ferrite description:

We have rich experience in supplying Europe motor users, we have TS16949 certified. We had pleased to supply full set of PPAP reports with samples to you Ferrite (ceramic) magnets are essentially composed of oxide materials with barium carbonate or strontium carbonate, manufactured under a powder metallurgical process

The feature of low recoil permeability, along with the high coercive force, makes them highly resistant to demagnetizing fields. In addition, their relatively low specific density and economical cost are also very attractive to the magnet designers. When designing the ferrite magnets for a particular application, primary consideration should be given to its shape limitation due to the powder metallurgical manufacturing process and the temperature dependence of ferrite materials Ferrite magnets have good anti-corrosion performance, no surface treatment needed. There are two manufacturing process for ferrite magnets: dry process and wet process. By dry process, can produce isotropic & anisotropic magnets; by wet process, only anisotropic magnets can be produced. Isotropic ferrite magnets are not oriented and can be magnetized in any direction; anisotropic ferrite magnets are different, they are all oriented in the manufacturing direction, and should be magnetized in the direction of orientation. For dry process, the tool can be changed and developed easily, while for wet process, it is complicated to change the tool and the tooling charge is much higher. At present, we have put our emphasis on arc segment magnets for electric motors, disc magnets and block magnets for special applications We specialize in ODM and OEM various magnet rotors for motors. Magnetic rotors which are made by plastic injection outside NdFeB magnets or ferrite's in can, high in efficiency and working with low noise. They are widely applied in cars, water pumps, disk drivers, starting motors of motor bikes and stepping motors  

Hard Ferrite of Permanent magnets