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Ferrite Block Magnet 75X30X20mm

R40,25 inc VAT

Ferrite Block Magnet 75X30X20mm. While not as strong as Neodymium Magnets, these magnets have great endurance and more than not out live the life cycle of their particular application.

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TECHNICAL SPECIFICATIONS Ferrite Block Magnet 75X30X20mm
Ferrite Block Magnet 75X30X20mm – Grey “Lead” in colour, a robust medium strength magnet with a good magnetic field and power.



Direction of Magnetization

Ferrite Block Magnet 75X30X20mm

Ferrite Block Magnet 75x30x20mm

Product ID FB75X30X20mm
Magnet Type Ferrite
Grade Y30BH
Shape Block
Length 75mm
Width 30mm
Height 20mm
Direction of Magnetization Axial
Coating None
Approx Pull Force Magnet to Magnet 13 Kg
Weight Approx 270g
Maximum Working Temperature 250°C


FERRITE Block magnets

Also known as ceramic magnets, rank above all other magnets in the world in their popularity. Due to their versatility Ferrites offer a wide scope of applications.

Ferrite / Ceramic magnets are dark grey – or lead colour as in a pencil, hard and brittle. They are uncoated with a fine powder can be frequently found on them. Precisely cut, straight edges, fine 90° corners, our medium strength magnets , Ferrite blocks operate up to temperatures of 250°C allowing for a range of high temperature uses. These magnets are robust ceramic that are corrosion-resistant, which makes them a suitable fit for both indoor and outdoor – use in water, salt water and marine environments.

Ferrite Magnets are man-made magnets. Iron oxide and barium or strontium carbonate are used in the manufacturing of hard ferrite magnets. Because our block magnets are hard ferrite magnets, they have high coercivity. The high coercivity means their materials are very resistant to becoming demagnetized, an essential characteristic for a permanent magnet.

Hard ceramic magnets are often used in applications where a permanent high-strength magnetic field is required, such as loudspeakers. As well as being a top choice for long term performance, when well maintained – Ferrite Magnets will easily outlast their application.

While Ferrites are also called Ceramic magnets – they both refer to the exact same magnet, the term ceramic came into effect because these magnets are electrically insulating (electrical current does not pass through them because of their exceptionally high electrical resistance). Unlike other ferromagnetic materials, most ferrites are not electrically conductive.

Ferrite Block Applications

They are extremely popular in motor, generator, loudspeaker and marine designs but are found in almost all industries. e.g. Automotive, Sensor, Machines, Aerospace, Military, Advertising, Electrical/Electronic, Academic, Design House, and R&D.

The smaller block magnets are frequently found in hobby & craft applications, as well as model building. Ferrites are also used in applications where their magnetism can be amplified, such as assembly applications, ie: pot magnets, round base magnets (shallow pot magnets) 

The bigger block magnets are favoured in many ferrous separation applications which require metal contamination to be removed – such as a conveyor belt in a food distribution plant.

As has been noted, Ferrite magnets are hard and brittle. They can shatter and break if mishandled or dropped. While cracks, lines and other visual blemishes are commonly found on Ferrites, these imperfections do not represent defects. Chips of up to 5% of the magnets surface is acceptable and Cracks are admissible provided not more than 50% of the magnets surface is affected.

In Summary ceramic magnets are used in nearly every single industry thinkable, from simple applications like fridge magnets, magnetic locks, magnetic sweepers and separators to complex refined magnetic applications such as generators and Eddy Current Devices.

More Ferrite Magnet Applications

  • DC brushless motors
  • Magnetic Resonance Imaging (MRI)
  • Magnetos used on lawnmowers and outboard motors
  • DC permanent magnet motors (used in cars)
  • Separators (separate ferrous material from non-ferrous)
  • Used in magnetic assemblies designed for lifting, holding, retrieving and separating
  • Computer Hard Drive Magnets
  • Microphones
  • Headphones
  • Security Systems
  • Door Catches
  • Magnetic Suspension
  • Motors (e.g. washing machines, drills, food mixers, vacuum cleaners, hand dryers)
  • Generators (e.g. Wind turbines, Wave Power, Turbo Generators, etc)
  • Sensors
  • Healthcare
  • Magnetic Separators
  • Lifting Apparatus
  • Limpet Pot Magnets
  • Magnetic coupling
  • Starter motors
  • ABS systems
  • Eddy Current Devices
  • Brakes
  • Alternators
  • Meters
  • Magnetic Clamps
  • Electro-acoustic pick-ups
  • Reed Switches
  • Relays
  • Pot Magnets
  • Overband Magnets
  • Sweeper Magnets
  • Craft projects
  • Refrigerator magnets
  • Badge holders
  • Latches
  • Display boards
  • Loudspeakers
  • Toys
  • Games
  • Novelties & more.

Our Range of Ferrite Blocks:

Get In Touch

It’s so important to know you are buying the right magnet. If you have any questions, please get in touch with us. Either via WhatsApp on the right of this page, or give us a call on 072 093 1626 or if you prefer to contact us via e-mail follow this link.

Give us your feedback on our service to you, our products and last but not least your overall experience with Magnet Shop, share your review here

Lastly, while Magnet Shop is our retail online division, our sister company The Magnet Company covers Industrial and Trade related magnets, applications, assembly and machinery.
Please click here to visit The Magnet Company


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