{"version":"1.0","provider_name":"\u81ea\u7531\u5149\u5b66\u5f0f\u30ec\u30fc\u30b6\u30fc\u30de\u30fc\u30ad\u30f3\u30b0\u30de\u30b7\u30f3","provider_url":"https:\/\/www.free-optic.com\/ja","author_name":"user","author_url":"https:\/\/www.free-optic.com\/ja\/news\/author\/user\/","title":"The Truth: How Deep Can a 20 Watt Fiber Laser Cut in 2026? A Practical Guide - Free Optic Laser Marking Machines","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"pQg8H9S5fV\"><a href=\"https:\/\/www.free-optic.com\/ja\/news\/20w-fiber-laser-cutting-depth-guide\/\">\u771f\u5b9f\uff1a2026\u5e74\u300120\u30ef\u30c3\u30c8\u306e\u30d5\u30a1\u30a4\u30d0\u30fc\u30ec\u30fc\u30b6\u30fc\u306f\u3069\u3053\u307e\u3067\u6df1\u304f\u5207\u65ad\u3067\u304d\u308b\u304b\uff1f\u5b9f\u8df5\u30ac\u30a4\u30c9<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.free-optic.com\/ja\/news\/20w-fiber-laser-cutting-depth-guide\/embed\/#?secret=pQg8H9S5fV\" width=\"600\" height=\"338\" title=\"\u300c\u771f\u5b9f\uff1a2026\u5e74\u300120\u30ef\u30c3\u30c8\u306e\u30d5\u30a1\u30a4\u30d0\u30fc\u30ec\u30fc\u30b6\u30fc\u306f\u3069\u3053\u307e\u3067\u6df1\u304f\u5207\u65ad\u3067\u304d\u308b\u304b\uff1f\u5b9f\u8df5\u30ac\u30a4\u30c9&quot; - \u7121\u6599\u5149\u5b66\u30ec\u30fc\u30b6\u30fc\u52a0\u5de5\u6a5f\" data-secret=\"pQg8H9S5fV\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>","thumbnail_url":"https:\/\/www.free-optic.com\/wp-content\/uploads\/2026\/03\/the-truth-how-deep-can-a-20-watt-fiber-laser-cut-in-2026-a-practical-guide.webp","thumbnail_width":600,"thumbnail_height":600,"description":"Abstract A 20 watt fiber laser is fundamentally engineered for high-precision surface marking, engraving, and deep engraving rather than for through-cutting substantial material thicknesses. Its capabilities for cutting are confined to very thin metal foils and sheets, with practical limits generally not exceeding 0.3mm for materials like stainless steel and even less for reflective metals such as aluminum or brass. The actual achievable depth is not a fixed value; it is contingent upon a complex interplay of variables. These include the material&#39;s composition, its thermal conductivity and reflectivity, and the specific operational parameters of the laser system, such as pulse frequency, scanning speed, focal length of the lens, and the [&hellip;]"}