--- product_id: 420325068 title: "FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece" brand: "findmag" price: "$40.43" currency: USD in_stock: true category: "Findmag" url: https://www.desertcart.us/products/420325068-findmag-40x40x20mm-neodymium-block-magnet-n52-heavy-duty-neodymium-magnets store_origin: US region: United States of America --- # Compact 40x40x20mm cuboid - versatile & easy to handle N52 grade - world’s strongest magnet Ni+Cu+Ni triple coating - corrosion & scratch resistant FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece **Brand:** findmag **Price:** $40.43 **Availability:** ✅ In Stock ## Summary > 🧲 Power Up Your Projects with the World's Strongest Magnet! ## Quick Answers - **What is this?** FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece by findmag - **How much does it cost?** $40.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/420325068-findmag-40x40x20mm-neodymium-block-magnet-n52-heavy-duty-neodymium-magnets) ## Best For - findmag enthusiasts ## Why This Product - Trusted findmag brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Triple-layer Ni+Cu+Ni coating ensures your magnet stays rust-free and scratch-resistant for years. - • **Quality You Can Trust:** ISO 9001 certified craftsmanship backed by a risk-free replacement or refund guarantee. - • **Unmatched Magnetic Power:** Experience the intense pull of the strongest N52 neodymium magnet on the market. - • **Perfectly Sized for Precision:** Compact 40x40x20mm cuboid shape fits seamlessly into any project or workspace. - • **Versatility Meets Professionalism:** Ideal for DIY, industrial, scientific, and office applications—your all-in-one magnetic solution. ## Overview The FINDMAG 40x40x20mm N52 Neodymium Block Magnet is a premium-grade, super strong rare earth magnet featuring a durable Ni+Cu+Ni coating for corrosion and scratch resistance. Compact yet powerful, it’s designed for versatile professional and DIY use, crafted to ISO 9001 standards, and backed by a satisfaction guarantee. ## Description Specifications:Quantity: 1 pcsShape: CuboidSize: 40mm x 40mm x 20mmMaterial: NdFeB MagnetsAdvantages:1. Utilizing a robust magnet, this product offers unmatched durability.2. Crafted with a high-quality magnet, it ensures resistance against rust and scratches.3. Designed for versatility, it meets a wide range of needs in both your professional and personal life.4. Sold by experts in the field, we provide a comprehensive quality and service guarantee.Warning:1. Keep away from pacemakers.2. The magnetic force is very strong. Please use it carefully!3. Not for children, parental supervision required.4. All magnets may chip and shatter, but if used correctly can last a lifetime.5. If damaged please dispose of completely. Shards are still magnetized and if swallowed can inflict serious damage. ## Features - 🧲【Premium Magnet】Ni+Cu+Ni coated round magnets resist demagnetization, corrosion, and oxidation, featuring durable brushed nickel silver for a long-lasting, scratch-resistant surface. - 🧲【Powerful Magnet】This powerful neodymium cuboid magnet, the strongest type available, is not for children's play due to its intense magnetic force. It's ideal for daily projects or tasks. - 🧲【Versatile Use】This strong magnet is perfect for DIY, science experiments, kitchens, offices. Use it for stud finding, fastening, lifting, and more. - 🧲【Perfect Size】Length: 40mm / 1.6inch, Width: 40mm / 1.6inch, Thickness: 20mm / 0.8inch; Quantity: 1 pcs; Shape: Cuboid. Convenient to use and display. - 🧲【Professional Brand】Crafted to ISO 9001 standards, we offer a wide range of magnets. Unsatisfied? Get a replacement or refund, risk-free. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09LC9JQXT | | Best Sellers Rank | #14,315 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #116 in Rare Earth Magnets | | Brand Name | FINDMAG | | Color | Silver | | Customer Reviews | 4.4 4.4 out of 5 stars (1,327) | | Included Components | magnet | | Item Dimensions L x W x Thickness | 1.57"L x 1.57"W x 0.79"Th | | Item Thickness | 20 Millimeters | | Manufacturer | FINDMAG | | Material Type | Nickel,Silver | | Number of Pieces | 1 | | Part Number | 00000000001 | | Shape | Square | | Unit Count | 1.0 Count | ## Product Details - **Brand:** FINDMAG - **Color:** Silver - **Material:** Nickel,Silver - **Product Dimensions:** 1.57"L x 1.57"W x 0.79"Th - **Shape:** Square ## Images ![FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece - Image 1](https://m.media-amazon.com/images/I/5158DQMu7CL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: will this magnet hold up in hot heat?** A: Temperature resistance limit is 230°C **Q: How many pounds will the cuboid lift?** A: it can lift almost 250 pounds at Vertical use **Q: how heavy are these magnets?** A: About 7.3 ounces for each **Q: What's the N-grade for these magnets?** A: N52 ## Frequently Bought Together - FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece - MIKEDE Neodymium Magnet Super Strong Rare Earth Magnets for Stud Finder and Science Project - One Piece --- ## 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.us/products/420325068-findmag-40x40x20mm-neodymium-block-magnet-n52-heavy-duty-neodymium-magnets](https://www.desertcart.us/products/420325068-findmag-40x40x20mm-neodymium-block-magnet-n52-heavy-duty-neodymium-magnets) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-21*