Ferrite Ring Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial
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Description
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【Size】The ceramic hard ferrite magnets with hole have the dimensions outer diameter: 120 mm x 60 mm x 20 mm (4.72 x 2.36 x 0.78 inches). Powerful: ring magnet, made of high-quality ceramic magnet material. Grade 8, which is stronger than grade 5, internal gauss = 3,850 g. Features: low cost, high energy, good electrical insulation and excellent demagnetization resistance. High coercive force, high electrical resistance, long-term stability and economy. Use: these doughnut magnets have industrial strength and are suitable for various DIY projects and magnets for scientific projects. And the large round magnet with hole will not rust, making it ideal for outdoor and underwater projects. Please note: the large ring magnet has a strong magnetic force. Be careful with fragile items, pay attention to hand injuries and store it dry.
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Description
(1)
【Size】The ceramic hard ferrite magnets with hole have the dimensions outer diameter: 120 mm x 60 mm x 20 mm (4.72 x 2.36 x 0.78 inches). Powerful: ring magnet, made of high-quality ceramic magnet material. Grade 8, which is stronger than grade 5, internal gauss = 3,850 g. Features: low cost, high energy, good electrical insulation and excellent demagnetization resistance. High coercive force, high electrical resistance, long-term stability and economy. Use: these doughnut magnets have industrial strength and are suitable for various DIY projects and magnets for scientific projects. And the large round magnet with hole will not rust, making it ideal for outdoor and underwater projects. Please note: the large ring magnet has a strong magnetic force. Be careful with fragile items, pay attention to hand injuries and store it dry.
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