{"id":1548,"date":"2025-05-08T02:23:36","date_gmt":"2025-05-08T02:23:36","guid":{"rendered":"https:\/\/nbaem.com\/?p=1548"},"modified":"2025-05-08T02:24:20","modified_gmt":"2025-05-08T02:24:20","slug":"guide-to-rare-earth-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/sk\/guide-to-rare-earth-magnets\/","title":{"rendered":"Pr\u00edru\u010dka o vz\u00e1cnych zemsk\u00fdch magnetoch"},"content":{"rendered":"<h1>Pr\u00edru\u010dka o vz\u00e1cnych zemsk\u00fdch magnetoch<\/h1>\n\n<p>Rare earth magnets are everywhere\u2014from your smartphone to your car. But most people don\u2019t know what makes them different or why they cost more.<\/p>\n<p><strong>Rare earth magnets are the strongest permanent magnets, made from rare-earth element alloys like <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" title=\"neod\u00fdm\" href=\"https:\/\/nbaem.com\/sk\/products\/neodymium-magnet\/\">neod\u00fdm<\/a><\/span> a <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" title=\"cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits\" href=\"https:\/\/nbaem.com\/sk\/products\/samarium-cobalt-magnets\/\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/a><\/span>, and are used in many high-performance applications.<\/strong><\/p>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/06\/neodymium-magnet-1.png\" alt=\"magnetick\u00fdch materi\u00e1lov\" width=\"740\" height=\"493\" \/><\/p>\n<p>In my work, I deal with rare earth magnets every day. I\u2019ve seen how small they are, but also how powerful. Whether for tech or tools, their magnetic force is unmatched. Let me walk you through everything you need to know.<\/p>\n<h2><span style=\"color: #3366ff;\">What are earth magnets?<\/span><\/h2>\n<p>People often hear \u201cearth magnet\u201d and think it\u2019s something new. Actually, it\u2019s been transforming industries for decades.<\/p>\n<p><strong>Earth magnets, or rare earth magnets, are made from rare-earth elements like neodymium and samarium, and are known for their high magnetic strength.<\/strong><\/p>\n<div id=\"attachment_1551\" style=\"width: 751px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1551\" class=\"wp-image-1551\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth.jpg\" alt=\"rare earth\" width=\"741\" height=\"417\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-200x113.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-300x169.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-400x225.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-600x338.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-768x432.jpg 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-800x450.jpg 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-1024x576.jpg 1024w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-1200x675.jpg 1200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth-1536x864.jpg 1536w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Rare-earth.jpg 1920w\" sizes=\"(max-width: 741px) 100vw, 741px\" \/><p id=\"caption-attachment-1551\" class=\"wp-caption-text\">rare earth<\/p><\/div>\n<h3>What makes them rare?<\/h3>\n<p>Rare earth elements come from the lanthanide series of the periodic table. These metals aren\u2019t truly rare in quantity, but they are hard to extract and process. This is what gives the magnets their name.<\/p>\n<h3>Two main types<\/h3>\n<p>There are two popular kinds of rare earth magnets:<\/p>\n<ul>\n<li><strong>NdFeB neodymov\u00e9 magnety (NdFeB)<\/strong>: Made from neodymium, iron, and boron. Very strong, often nickel-coated to resist rust.<\/li>\n<li><strong>Magn\u00e9ty Samarium-kobalt (SmCo)<\/strong>: Made from samarium and cobalt. Better at handling high temperatures and resisting corrosion.<\/li>\n<\/ul>\n<p>Here\u2019s a quick comparison:<\/p>\n<table>\n<thead>\n<tr>\n<th>Typ<\/th>\n<th>Zlo\u017eenie<\/th>\n<th>Sila<\/th>\n<th>Kor\u00f3zna odolnos\u0165<\/th>\n<th>Tepeln\u00e1 stabilita<\/th>\n<th>N\u00e1klady<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NdFeB (Neod\u00fdm)UNK<\/td>\n<td>Nd + Fe + B<\/td>\n<td>Ve\u013emi vysok\u00fd<\/td>\n<td>N\u00edzka (vy\u017eaduje potiahnutie)<\/td>\n<td>Medium (~80\u2013200\u00b0C)<\/td>\n<td>Ni\u017e\u0161ie<\/td>\n<\/tr>\n<tr>\n<td>Samarium-kobalt (SmCo)<\/td>\n<td>Sm + Co<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Vynikaj\u00face<\/td>\n<td>High (~250\u2013350\u00b0C)<\/td>\n<td>Vy\u0161\u0161ie<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>They look small, but their strength is no joke. I\u2019ve had a 1-inch neodymium magnet jump across a table and snap onto a metal wrench. It startled me the first time. That\u2019s when I realized how powerful they are.<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #3366ff;\">What is the difference between an earth magnet and a regular magnet?<\/span><\/h2>\n<p>If you&#8217;ve ever used a fridge magnet and thought, \u201cThis works fine,\u201d you haven\u2019t met a rare earth magnet.<\/p>\n<p><strong>Earth magnets are much stronger than regular magnets like <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" title=\"keramika\" href=\"https:\/\/nbaem.com\/sk\/products\/ceramic-magnet\/\">keramika<\/a><\/span> or<span style=\"color: #ff6600;\"> <a style=\"color: #ff6600;\" title=\"alnico\" href=\"https:\/\/nbaem.com\/sk\/products\/alnico-magnet\/\">alnico<\/a><\/span>, and can hold heavier loads in smaller sizes.<\/strong><\/p>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2022\/05\/ferrite-magnet.png\" alt=\"\" width=\"748\" height=\"515\" \/><br \/>\nFerritov\u00fd magnet<\/p>\n<h3>Performance gap<\/h3>\n<p>The strength difference between rare earth and regular magnets is dramatic. A small neodymium magnet can be 10 times stronger than a similarly sized ceramic magnet. That\u2019s why tech companies use them in smartphones, hard drives, and electric motors.<\/p>\n<h3>Key differences by type<\/h3>\n<p>Let\u2019s break this down:<\/p>\n<table>\n<thead>\n<tr>\n<th>Vlastnos\u0165<\/th>\n<th>Ceramic Magnet (Ferrite)<\/th>\n<th>Alnico Magnet<\/th>\n<th>magnet vz\u00e1cnych zem\u00edn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Magnetick\u00e1 sila<\/td>\n<td>N\u00edzka a\u017e stredn\u00e1<\/td>\n<td>Stredn\u00fd<\/td>\n<td>Ve\u013emi vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Effektivita ve\u013ekosti<\/td>\n<td>Large<\/td>\n<td>Stredn\u00fd<\/td>\n<td>Small<\/td>\n<\/tr>\n<tr>\n<td>N\u00e1klady<\/td>\n<td>N\u00edzky<\/td>\n<td>Stredn\u00fd<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Kor\u00f3zna odolnos\u0165<\/td>\n<td>Dobr\u00fd<\/td>\n<td>Poor<\/td>\n<td>Varies (coated NdFeB)<\/td>\n<\/tr>\n<tr>\n<td>Temp. Stability<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Ve\u013emi vysok\u00e1<\/td>\n<td>Stredne a\u017e vysoko<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #3366ff;\">What are neodymium magnets used for?<\/span><\/h2>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<p><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong><\/p>\n<div id=\"attachment_1552\" style=\"width: 762px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1552\" class=\"wp-image-1552\" src=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications.jpg\" alt=\"Applications of magnet\" width=\"752\" height=\"465\" srcset=\"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-200x124.jpg 200w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-300x186.jpg 300w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-400x248.jpg 400w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-600x371.jpg 600w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-768x475.jpg 768w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications-800x495.jpg 800w, https:\/\/nbaem.com\/wp-content\/uploads\/2025\/05\/Applications.jpg 958w\" sizes=\"(max-width: 752px) 100vw, 752px\" \/><p id=\"caption-attachment-1552\" class=\"wp-caption-text\">cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p><\/div>\n<h3>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/h3>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<ul>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>Vetern\u00e9 turb\u00edny<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>Elektronika<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>Lek\u00e1rstvo<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<li><strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/strong>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/li>\n<\/ul>\n<p>Tu je rozpis:<\/p>\n<table>\n<thead>\n<tr>\n<th>Priemysel<\/th>\n<th>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<th>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Automobilov\u00fd priemysel<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td>Elektronika<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td>Lek\u00e1rstvo<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td>Obnovite\u013en\u00e1 energia<\/td>\n<td>Vetern\u00e9 turb\u00edny<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<tr>\n<td>Priemysel<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #3366ff;\">Why are rare earth magnets so expensive?<\/span><\/h2>\n<p>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/p>\n<p><strong>Rare earth magnets are expensive because of complex mining processes, limited global supply, and high processing and refinement costs.<\/strong><\/p>\n<h3>Raw material scarcity<\/h3>\n<p>Mining rare earth metals like neodymium or samarium requires special handling. These materials are not truly rare, but they are scattered and hard to refine. Most global supply comes from a few countries, which adds to market risk and pricing.<\/p>\n<h3>Manufacturing complexity<\/h3>\n<p>The magnets must be processed at high purity, sintered at controlled temperatures, and often coated (especially NdFeB) to resist corrosion. Each step adds cost. On top of that, environmental regulations and export controls (like China\u2019s 2025 policies) impact supply and price.<\/p>\n<p>Here\u2019s what affects the price:<\/p>\n<table>\n<thead>\n<tr>\n<th>Faktor<\/th>\n<th>Popis<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https:\/\/developers.cloudflare.com\/workers\/wrangler\/configuration\/#limits<\/td>\n<td>Rare earths are expensive to extract and refine<\/td>\n<\/tr>\n<tr>\n<td>Processing Difficulty<\/td>\n<td>Requires high-tech sintering and coating<\/td>\n<\/tr>\n<tr>\n<td>Supply Chain Risk<\/td>\n<td>Limited suppliers, trade policies, and export limits<\/td>\n<\/tr>\n<tr>\n<td>Performance Demand<\/td>\n<td>Used in cutting-edge tech and green energy systems<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Sometimes I explain it like this: buying a rare earth magnet is like buying a tiny engine. It may not look complex, but it\u2019s packed with power and precision.<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #3366ff;\">Z\u00e1ver<\/span><\/h2>\n<p>Rare earth magnets are small but mighty. Their strength, efficiency, and broad use make them essential for modern industries.<\/p>\n<hr \/>\n<h2><\/h2>\n<h2>Moja \u00faloha<\/h2>\n<h3>O mne<\/h3>\n<p><strong>N\u00e1zov zna\u010dky<\/strong>: Magnet NBAEM<br \/>\n<strong>Slogan<\/strong>: \u0160pecializovan\u00e9 na magnetick\u00e9 materi\u00e1ly<br \/>\n<strong>Webov\u00e1 str\u00e1nka<\/strong>: <a href=\"https:\/\/nbaem.com\/sk\/\">nbaem.com<\/a><\/p>\n<p><strong>Na\u0161a misia<\/strong>:<br \/>\nNBAEM Magnet je spolo\u010dnos\u0165 zaoberaj\u00faca sa magnetmi s 15-ro\u010dn\u00fdmi sk\u00fasenos\u0165ami. \u0160pecializujeme sa na r\u00f4zne typy magnetick\u00fdch materi\u00e1lov, s cie\u013eom pom\u00f4c\u0165 ka\u017ed\u00e9mu z\u00e1kazn\u00edkovi vytvori\u0165 cenovo efekt\u00edvne prisp\u00f4soben\u00e9 magnety a magnetick\u00e9 komponenty, ktor\u00e9 vyhovuj\u00fa ich \u0161pecifick\u00fdm po\u017eiadavk\u00e1m. Poskytujeme vysokokvalitn\u00e9 predajn\u00e9 a popredajn\u00e9 slu\u017eby spolu s relevantnou technickou podporou.<\/p>\n<p><strong>O mne<\/strong>:<br \/>\nNBAEM som zalo\u017eil ja \u2014 zanieten\u00fd odborn\u00edk v magnetickom priemysle. Za\u010dal som svoju kari\u00e9ru vo v\u00fdrobe magnetov a nesk\u00f4r som zalo\u017eil \u00faspe\u0161n\u00fa spolo\u010dnos\u0165 zaoberaj\u00facu sa magnetmi a magnetick\u00fdmi zostavami. Po\u010das mojej cesty v magnetickom priemysle som pomohol mnoh\u00fdm klientom roz\u0161\u00edri\u0165 ich podnikanie. Zdie\u013ean\u00edm svojej odbornej znalosti a sk\u00fasenost\u00ed si kladiem za cie\u013e pom\u00e1ha\u0165 klientom n\u00e1js\u0165 spr\u00e1vne rie\u0161enia.<\/p>","protected":false},"excerpt":{"rendered":"<p>Guide to Rare Earth Magnets Rare earth magnets are everywhere\u2014from your smartphone to your car. But most people don\u2019t know what makes them different or why they cost more. Rare earth magnets are the strongest permanent magnets, made from rare-earth element alloys like neodymium and samarium cobalt, and are used [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1501,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/03\/disc.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/comments?post=1548"}],"version-history":[{"count":11,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1548\/revisions"}],"predecessor-version":[{"id":1562,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1548\/revisions\/1562"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media\/1501"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media?parent=1548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/categories?post=1548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/tags?post=1548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}