--- product_id: 13431347 title: "Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment" brand: "aomag" price: "AED 112" currency: AED in_stock: true reviews_count: 13 category: "Aomag" url: https://www.desertcart.ae/products/13431347-ferrite-ring-magnet-4in-dia-ceramic-for-science-experiment store_origin: AE region: United Arab Emirates --- # 120 lbs pull force 100mm outer diameter High corrosion & demagnetization resistance Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment **Brand:** aomag **Price:** AED 112 **Availability:** ✅ In Stock ## Summary > 🧲 Elevate your projects with magnetic mastery—don’t get left behind! ## Quick Answers - **What is this?** Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment by aomag - **How much does it cost?** AED 112 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/13431347-ferrite-ring-magnet-4in-dia-ceramic-for-science-experiment) ## Best For - aomag enthusiasts ## Why This Product - Trusted aomag brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Space-Smart Organizer:** Large donut hole design lets you streamline your workspace by securing tools and metal items effortlessly. - • **Budget-Savvy Magnetism:** Get premium magnetic strength without the premium price tag—ferrite power that’s easy on your wallet. - • **Unmatched Magnetic Power:** Grade 10 strength delivers a massive 120 lbs pull force—hold tight, no slip-ups! - • **Precision Crafted Durability:** Ceramic ferrite build resists corrosion and demagnetization for long-lasting performance in any environment. - • **Versatile Innovation Catalyst:** Perfect for DIY projects, speakers, motors, sensors, and creative hobbies—your magnetic muse awaits. ## Overview The AOMAG Ferrite Ring Magnet is a robust 4-inch diameter ceramic magnet featuring a 60mm center hole and 20mm thickness. With a powerful 120 lbs pull force and Grade 10 magnetic strength, it offers exceptional adhesion and durability, resisting corrosion and demagnetization. Ideal for industrial, scientific, and creative applications, this heavy-duty donut magnet combines high performance with cost-effective value, making it a must-have for professionals and hobbyists alike. ## Description Product description AOMAG Strong Large Ceramic Magnets rings for Science Projects, House, & Crafts AOMAG offers a series of large strong round magnets, all of which have first-class quality. We are committed to providing customers with high-quality products, always putting customers first and specializing in producing and selling magnets of various colors and sizes. There is no need to worry about magnets’ power, resistance and reliability anymore. We invest tremendous amount of time and effort researching, developing, and controlling the quality of our industrial ring magnets. This magnet ring is made of Ceramic C8 grade, which has strong magnetism and can even last for decades. All magnets ring are axially magnetized. High thermal stress resistance, corrosion resistance and oxidation resistance. Circle Hole circular magnetscan be used for everything that including fastening, lifting, hanging objects,scientific purposes, arts and crafts or school classroom. Large Magnets Heavy Duty Ferrite Magnetic Ring large magnet heavy duty is very powerful and durable. It is designed and manufactured using the latest technology under strict highest quality standards to ensure that you can receive the best large round magnets ring every time. large magnets heavy duty can be widely used in many aspects and great for all Home, Office, Craft, Hobby, Science Projects and Product Manufacturing applications. Warm Tips for Large Round Magnets Ring Strong Round magnets strong may hurt your fingers, so use them carefully. Keep away from ID cards, bank cards, watches, etc. All large magnets heavy duty may chip and shatter, but if used correctly can last a lifetime. If ring magnet is damaged, please dispose of it thoroughly. Fragments will still be magnetized, which will cause serious harm if swallowed. Ideal for all school, office, art, DIY products, craft, home, science projects and product applications. For Kitchen You can use these ring magnets to tidy up your kitchen, tidy up your kitchen utensils and make the kitchen look neater. For Outdoor Maybe you always couldn't find your repair tools,now you can use large magnets heavy duty to do some DIY tools and you can find the tools easily. For Laboratory This kind of large round magnets strong is usually used in experimental projects and is a good helper for studying electromagnetic phenomena. For Classroom large round magnets can also be used as experimental tools for students to help them complete experimental projects and improve their hands-on ability. Review: They are strong! - This is a project peace Review: Perfect! - Very strong magnet and is exactly what I needed. Very well packaged and arrived in perfect condition. Thanks! ## Features - 【Strong Magnetic Performance】Ferrite Ring Magnets Large Round Magnet with Holes. Size - OD: 100mm(3.95"), ID: 60mm(2.36"), Thickness: 20mm(0.79"). With Grade 10 magnetic strength, these large magnets provide robust magnetic adhesion, ensuring they stay firmly attached to any metal surface without slipping. - 【Strength & Durability】Large Ring Ferrite circle magnets with Hole has high demagnetization resistance, corrosion resistance and oxidation resistance. High-quality materials determine the quality of magnets. The Round Circle Magnets are highly resistant to demagnetization, corrosion, making them suitable for use in challenging environments without the need for additional protective coatings. - 【Efficient Storage Solution】 - Use the large ring magnets to organize and secure metal tools and other items, saving space and reducing clutter in your workspace.Round Ceramic magnets made by molding process have more rounded edges than those cut by cutting, and are made of rare earth permanent magnetic materials mixed with other metal materials. - 【Multiple Uses】These Big round magnets are widely used as classroom magnets, refrigerator magnets, industrial magnets, whiteboard magnets, motors and generators, sensors, speaker magnets, scientific magnets and DIY magnets.With the ability to meet the needs of all your magnetic projects, the magnetic ring will be a reliable tool in your daily life. - 【ECONOMICAL】Compared with NdFeB magnets, this large ring ferrite magnets have no advantages in magnetic force, but magnets of the same size (compared with NdFeB magnets) sell for only a small part. The round circle magnets with hole will be packed by original AOMAG trademark package. Powered by AOMAG Only! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007OXE3LI | | Best Sellers Rank | #66,030 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #34 in Industrial Ceramic Magnets | | Brand | AOMAG | | Brand Name | AOMAG | | Color | Dark Grey | | Customer Reviews | 4.5 out of 5 stars 771 Reviews | | Item Dimensions L x W x Thickness | 3.93"L x 3.93"W x 0.78"Th | | Item Thickness | 20 Millimeters | | Item Weight | 1.1 Pounds | | Manufacturer | AOMAG | | Material | Ceramic | | Material Type | Ceramic | | Model Number | 7-303578JFA | | Number of Pieces | 1 | | Part Number | 7-303578JFA | | Product Dimensions | 3.93"L x 3.93"W x 0.78"Th | | Pull Force | 120 Pounds | | Shape | Round | | Unit Count | 1 Count | ## Product Details - **Brand:** AOMAG - **Color:** Black - **Material:** Ceramic - **Product Dimensions:** 3.93"L x 3.93"W x 0.78"Th - **Shape:** Round ## Images ![Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 1](https://m.media-amazon.com/images/I/51J6vGD7njL.jpg) ![Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 2](https://m.media-amazon.com/images/I/51GUo-ydjNL.jpg) ![Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 3](https://m.media-amazon.com/images/I/61yYrQR1WzL.jpg) ![Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 4](https://m.media-amazon.com/images/I/61VSDOUuP5L.jpg) ![Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 5](https://m.media-amazon.com/images/I/61MWziREMmL.jpg) ## Questions & Answers **Q: what is the lifting capacity of this magnet?** A: I’m my experience between 325 - 370g. **Q: what is the equivalent pull force?** A: This magnet can pick up about 100 paper clips **Q: What is the diameter of the inner hole?** A: 2-1/4" ID **Q: how many gauss?** A: wasn't posted on the box ## Customer Reviews ### ⭐⭐⭐⭐⭐ They are strong! *by V***L on April 21, 2026* This is a project peace ### ⭐⭐⭐⭐⭐ Perfect! *by A***R on June 12, 2023* Very strong magnet and is exactly what I needed. Very well packaged and arrived in perfect condition. Thanks! ### ⭐⭐⭐⭐ 🧲 *by S***I on January 15, 2026* Not as strong as thought to be yet holds small metal screws & such ## Frequently Bought Together - Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science - Legrand Pass & Seymour S752WCC10 660W 250V Medium Base A26 Lampholder, Cleat Sockets, Front Wire, White (1 Count) - Hillman 25' 18 Gauge Bare Copper Wire --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ae/products/13431347-ferrite-ring-magnet-4in-dia-ceramic-for-science-experiment](https://www.desertcart.ae/products/13431347-ferrite-ring-magnet-4in-dia-ceramic-for-science-experiment) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-06-07*