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Super Round Ferrite Multipurpose Magnets with Hole OD21mm, Creative Hobbies Economic Permanent Hard Ferrite Magnet Ring, Multipole Ring Ceramic Magnet for Loudspeaker & audio speakers, Anisotropic Hard Ferrite Permanent Magnets China Supplier
Super Round Ferrite Multipurpose Magnets with Hole OD21mm, PRODUCT SPECIFICATIONS:
Material : Grades 1 C1 CERAMIC Ferrite Ring Magnet
Type : Permanent
Size : 21mm OD diameter x 7mm ID (inside Hole Diameter) x 5mm thick Ferrite ring magnet.
Shape : Ring
Colour : Charcoal/ Grey
This ceramic ring magnet is made of grade 8 hard ferrite magnetic material. Ceramic magnets are the most economical type of magnet available and are the most widely used. It is not the strongest magnet type but still provides sufficient holding power for most applications. The holding power of this magnet.
Industrial grade high quality ceramic ring magnet
Grade 8 holding power per magnet
Great item for speakers, science projects and magnetic therapy.
Magnetized through thickness so that the N and S poles are on the flat surfaces.
High quality magnet made under ISO 9001 quality systems
1. Keep it away from pacemakers and kids under 10 years old.
2. All magnets are fragile and may chip or shatter. But if used properly, it can serve you for a lifetime.
Ferrite magnets are a ceramic material which made by mixing and calcining large proportions of iron oxide blended with small proportions of one or more additional elements. The most representative application of ferrite ring magnet is the loudspeaker except conventional holding applications. Regular ferrite ring magnet is magnetized via axial direction, and MPCO also can also provide diametrically magnetized, multi-pole magnetized, and uni-pole magnetized ferrite ring magnets.
Premium Quality: 40pcs ring ferrite magnets with holes, Practical size – OD: 21mm, ID: 7mm, Thickness: 5mm, ready to be used circle magnets for all your needs. Our Selected Ceramic Hole Magnets are Stronger than other Ceramic Donut Magnets.
Strength & Durability: Sunroy ring circular magnets have high resistance to demagnetization, corrosion & oxidation. Our round hole ceramic magnets owns strongest magnetism to satisfy your various needs and applications. The power exists forever under 200°Temperature.
Easy to Diy : Craft magnets for discretionary design. Donut flat ceramic magnets sticks tightly on any metal surfaces like refrigerator, dish washer, white board, stationary,etc. Ceramic Donut Magnets for Refrigerators, Office and Classroom Use
Widely Used: People widely use Our Disk Hole Magnets as Kitchen magnets, Office magnets, Science magnets, Classroom magnets, Refrigerator magnets, Industrial magnets, Fridge magnets, Craft magnets, DIY magnets and Hobby magnets. Donut Magnets for Fridge, Science Projects, Crafts
Excellent Service: The items come in best shipping condition with triple packaging to pretend the quality. Please feel free to contact us if you have any query, we will reply and help you immediately.