{"product_id":"elegoo-saturn-4-ultra-resin-3d-printer","title":"ELEGOO Saturn 4 Ultra – MSLA Resin 3D Printer","description":"\u003cstyle\u003e\n.ep-rs{--t:#3C8187;--t2:#4D9398;--band:#E6F0EB;--acc:#E8722B;--ink:#2F3437;--mut:#5d6468;--line:#dce5e2;font-family:'Raleway',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--ink);line-height:1.6;max-width:1000px;margin:0 auto}\n.ep-rs *{box-sizing:border-box}\n.ep-rs h2{font-size:1.5rem;font-weight:700;margin:2.4rem 0 1rem;line-height:1.25}\n.ep-rs h3{font-size:1.05rem;font-weight:700;margin:0 0 .4rem}\n.ep-rs p{margin:0 0 1rem}\n.ep-rs a{color:var(--t)}\n.ep-rs .hero{background:linear-gradient(135deg,var(--t) 0%,var(--t2) 100%);color:#fff;border-radius:14px;padding:2.2rem 2rem;margin:0 0 1.6rem}\n.ep-rs .hero h1{font-size:1.75rem;font-weight:800;margin:0 0 .5rem;color:#fff;line-height:1.2}\n.ep-rs .hero p{color:#eaf4f3;margin:0;font-size:1.05rem}\n.ep-rs .eyebrow{display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;background:rgba(255,255,255,.18);padding:.3rem .7rem;border-radius:999px;margin-bottom:.9rem}\n.ep-rs .badges{display:flex;flex-wrap:wrap;gap:.7rem;margin:1.4rem 0}\n.ep-rs .badge{flex:1 1 145px;background:var(--band);border:1px solid var(--line);border-radius:11px;padding:1rem;text-align:center}\n.ep-rs .badge .n{display:block;font-size:1.35rem;font-weight:800;color:var(--t);line-height:1.15}\n.ep-rs .badge .l{display:block;font-size:.8rem;color:var(--mut);margin-top:.25rem}\n.ep-rs .cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(225px,1fr));gap:1rem;margin:1.2rem 0}\n.ep-rs .card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.2rem}\n.ep-rs .card .ic{width:36px;height:36px;border-radius:9px;background:var(--band);display:flex;align-items:center;justify-content:center;margin-bottom:.7rem;font-size:1.15rem}\n.ep-rs .card p{font-size:.94rem;color:var(--mut);margin:0}\n.ep-rs table.spec{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.95rem}\n.ep-rs table.spec th{background:#3C8187 !important;color:#fff !important;text-align:left;padding:.7rem .9rem;font-weight:700}\n.ep-rs table.spec td{padding:.65rem .9rem;border-bottom:1px solid var(--line);vertical-align:top}\n.ep-rs table.spec td:first-child{font-weight:600;width:36%}\n.ep-rs table.spec tr:nth-child(even) td{background:#f6faf8}\n.ep-rs ul.list{margin:.4rem 0 1rem;padding-left:1.2rem}\n.ep-rs ul.list li{margin:.35rem 0}\n.ep-rs .incl{background:var(--band);border-radius:12px;padding:1.4rem 1.5rem;margin:1.2rem 0}\n.ep-rs .incl ul{margin:.5rem 0 0;padding-left:1.2rem}\n.ep-rs .incl li{margin:.4rem 0}\n.ep-rs .note{font-size:.86rem;color:var(--mut);border-left:3px solid var(--acc);padding:.2rem 0 .2rem 1rem;margin:1rem 0}\n.ep-rs .safety{background:#fdf6f1;border:1px solid #f0d6c2;border-radius:12px;padding:1.2rem 1.4rem;margin:1.2rem 0}\n.ep-rs .safety h3{color:#a1552b}\n.ep-rs .safety p{font-size:.93rem;margin:0}\n.ep-rs details.faq{border:1px solid var(--line);border-radius:10px;padding:.85rem 1.1rem;margin:.55rem 0;background:#fff}\n.ep-rs details.faq summary{cursor:pointer;font-weight:700;font-size:1rem;list-style:none;position:relative;padding-right:1.6rem}\n.ep-rs details.faq summary::-webkit-details-marker{display:none}\n.ep-rs details.faq summary::after{content:'+';position:absolute;right:0;top:-2px;font-size:1.3rem;color:var(--t);font-weight:700}\n.ep-rs details.faq[open] summary::after{content:'\\2212'}\n.ep-rs details.faq p{margin:.7rem 0 0;font-size:.95rem;color:var(--mut)}\n@media(max-width:640px){.ep-rs .hero h1{font-size:1.4rem}.ep-rs h2{font-size:1.25rem}.ep-rs table.spec td:first-child{width:46%}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"ep-rs\"\u003e\n\n\u003cdiv class=\"hero\"\u003e\n\u003cspan class=\"eyebrow\"\u003e12K MSLA Resin 3D Printer\u003c\/span\u003e\n\u003ch1\u003eELEGOO Saturn 4 Ultra\u003c\/h1\u003e\n\u003cp\u003e12K resolution with Tilt Release, heated tank and an AI camera — the reliability upgrades that matter when you print every day.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSaturn 4 Ultra\u003c\/strong\u003e sits between the Saturn 4 and the 16K model. It keeps 12K resolution — the practical sweet spot for miniatures and most prototyping — but adds the mechanical and workflow upgrades from the Ultra line: \u003cstrong\u003eTilt Release\u003c\/strong\u003e, a \u003cstrong\u003eheated resin tank\u003c\/strong\u003e, an \u003cstrong\u003eAI camera\u003c\/strong\u003e and \u003cstrong\u003e150 mm\/h\u003c\/strong\u003e print speed.\u003c\/p\u003e\n\n\u003cp\u003eThose upgrades are about reliability more than image quality. Tilt Release cuts peel force dramatically, so tall models and delicate supports survive; tank heating holds resin at 30 °C for consistent viscosity in a cold workshop. Together they turn a good printer into one you can leave running.\u003c\/p\u003e\n\n\u003cdiv class=\"badges\"\u003e\n\u003cdiv class=\"badge\"\u003e\n\u003cspan class=\"n\"\u003e12K\u003c\/span\u003e\u003cspan class=\"l\"\u003e10″ mono LCD\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"badge\"\u003e\n\u003cspan class=\"n\"\u003e19×24 µm\u003c\/span\u003e\u003cspan class=\"l\"\u003eXY resolution\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"badge\"\u003e\n\u003cspan class=\"n\"\u003e150 mm\/h\u003c\/span\u003e\u003cspan class=\"l\"\u003eMax print speed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"badge\"\u003e\n\u003cspan class=\"n\"\u003eTilt\u003c\/span\u003e\u003cspan class=\"l\"\u003eRelease technique\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"badge\"\u003e\n\u003cspan class=\"n\"\u003e30 °C\u003c\/span\u003e\u003cspan class=\"l\"\u003eHeated resin tank\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhat Makes It Different\u003c\/h2\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e↻\u003c\/div\u003e\n\u003ch3\u003eTilt Release\u003c\/h3\u003e\n\u003cp\u003eThe tank tilts to release each layer instead of pulling the model off the film. Far lower peel force, fewer failures on tall or delicate parts, and much faster cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e🌡️\u003c\/div\u003e\n\u003ch3\u003eSmart tank heating\u003c\/h3\u003e\n\u003cp\u003eHolds resin at 30 °C for consistent viscosity and layer adhesion — the difference between reliable winter printing and separated layers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e🔍\u003c\/div\u003e\n\u003ch3\u003e10″ 12K mono LCD\u003c\/h3\u003e\n\u003cp\u003e11520 × 5120 at 19 × 24 µm. The practical sweet spot — the great majority of the visible gain over FDM, without paying for 16K.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e📷\u003c\/div\u003e\n\u003ch3\u003eAI camera\u003c\/h3\u003e\n\u003cp\u003eReal-time monitoring with alerts for empty plates and warped models — useful when a long plate runs overnight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e💡\u003c\/div\u003e\n\u003ch3\u003eCOB + Fresnel lens\u003c\/h3\u003e\n\u003cp\u003eCollimated light keeps exposure even across the whole plate, so corner parts cure like centre parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"ic\"\u003e🔓\u003c\/div\u003e\n\u003ch3\u003eOpen materials\u003c\/h3\u003e\n\u003cp\u003eAny 405 nm photopolymer resin. No proprietary cartridges, no consumable lock-in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFull Specification\u003c\/h2\u003e\n\u003ctable class=\"spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eELEGOO Saturn 4 Ultra\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrinting technology\u003c\/td\u003e\n\u003ctd\u003eMSLA — Masked Stereolithography (resin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMasking LCD\u003c\/td\u003e\n\u003ctd\u003e10-inch 12K monochrome LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXY resolution\u003c\/td\u003e\n\u003ctd\u003e19 × 24 µm (11520 × 5120)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuild volume\u003c\/td\u003e\n\u003ctd\u003e218.88 × 122.88 × 220 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLayer thickness\u003c\/td\u003e\n\u003ctd\u003e0.01 – 0.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZ-axis accuracy\u003c\/td\u003e\n\u003ctd\u003e0.02 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrint speed\u003c\/td\u003e\n\u003ctd\u003eMax. 150 mm\/h (fast \/ slow modes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease technique\u003c\/td\u003e\n\u003ctd\u003eTilt Release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight source\u003c\/td\u003e\n\u003ctd\u003eCOB light source + Fresnel collimating lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLevelling\u003c\/td\u003e\n\u003ctd\u003eAuto levelling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResin tank\u003c\/td\u003e\n\u003ctd\u003eSmart tank heating, maintained at 30 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating screen\u003c\/td\u003e\n\u003ctd\u003e4.0-inch capacitive touch screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eEL3D-4.0, OTA firmware updates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eUSB \u0026amp; Wi-Fi antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlicing software\u003c\/td\u003e\n\u003ctd\u003eSatelLite \u0026amp; Chitubox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions\u003c\/td\u003e\n\u003ctd\u003e327.4 × 329.2 × 548 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e14.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping weight (gross)\u003c\/td\u003e\n\u003ctd\u003e19.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp class=\"note\"\u003eNeed finer detail? The \u003ca href=\"\/en-pt\/products\/elegoo-saturn-4-ultra-16k-resin-3d-printer\"\u003eSaturn 4 Ultra 16K\u003c\/a\u003e resolves at 14 × 19 µm on the same footprint — worth it for jewellery casting masters and dental prosthetics, where sub-20 µm precision has functional consequences.\u003c\/p\u003e\n\n\u003ch2\u003eYou Will Also Need a Wash \u0026amp; Cure Station\u003c\/h2\u003e\n\u003cp\u003eA resin printer on its own is an incomplete system. Every part must be washed in IPA to remove uncured resin, then UV-cured to full hardness and dimensional stability.\u003c\/p\u003e\n\u003cdiv class=\"incl\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury Plus V3.0\u003c\/strong\u003e — 7.5 L wash capacity with brackets taking build plates up to 10 inches; fits the Saturn 4 range directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury XS Bundle\u003c\/strong\u003e — separate wash and cure stations with a handheld UV lamp.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp class=\"note\"\u003eRelease film, masking LCD, build plate and resin tank are wear parts on any MSLA machine. We stock replacements in Spain.\u003c\/p\u003e\n\n\u003cdiv class=\"safety\"\u003e\n\u003ch3\u003eSafety \u0026amp; workspace\u003c\/h3\u003e\n\u003cp\u003eUncured photopolymer resin is a skin and eye irritant. Work in a ventilated space, wear nitrile gloves and eye protection when handling liquid resin, wash parts in IPA, and cure fully before handling bare-handed. Dispose of waste resin and used IPA as chemical waste — never down the drain. Keep away from children and pets.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cul class=\"list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStudios printing daily\u003c\/strong\u003e — where reliability matters more than the last increment of resolution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMiniature and tabletop producers\u003c\/strong\u003e running repeat batches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJewellery and product designers\u003c\/strong\u003e needing consistent output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService bureaus\u003c\/strong\u003e adding resin capacity alongside FDM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eQuestions About the Saturn 4 Ultra\u003c\/h2\u003e\n\n\u003cdetails class=\"faq\"\u003e\n\u003csummary\u003eWhat does Tilt Release actually change day to day?\u003c\/summary\u003e\n\u003cp\u003eStandard MSLA machines lift the model straight up off the release film after each layer, and that suction force is what tears delicate supports and pulls tall models off the plate. Tilt Release tips the tank instead, so the layer peels from one edge rather than all at once. In practice you get noticeably fewer failed prints on tall or thin geometry, less strain on supports, and much shorter layer cycles — which is where the 150 mm\/h comes from.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq\"\u003e\n\u003csummary\u003eWhy does the resin tank need heating to 30 °C?\u003c\/summary\u003e\n\u003cp\u003eResin viscosity changes sharply with temperature. In a cold workshop it thickens, flows back slowly between layers and cures inconsistently — which shows up as poor layer adhesion or separated layers. Holding the tank at 30 °C keeps viscosity stable so results in January match results in July. If your printing space is unheated, this feature matters more than any resolution difference.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq\"\u003e\n\u003csummary\u003eShould I choose this or the 16K version?\u003c\/summary\u003e\n\u003cp\u003eBoth have the same footprint, the same Tilt Release, the same heated tank and the same 150 mm\/h. The only meaningful difference is pixel pitch — 19 × 24 µm here against 14 × 19 µm on the 16K. For miniatures, models and general prototyping this is the sensible choice. Step up to 16K if you print jewellery casting masters or dental work, where the finer pitch has functional rather than cosmetic consequences.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq\"\u003e\n\u003csummary\u003eCan I leave it running unattended overnight?\u003c\/summary\u003e\n\u003cp\u003eThe AI camera with chamber light gives real-time monitoring and alerts for empty plates or warped models, and power-loss recovery resumes after an outage — so long plates are practical. The real constraint is ventilation rather than the machine: resin off-gasses throughout a print, and a sealed room accumulates VOCs over an overnight run in a way it does not during a ventilated day. Run long jobs in a garage or workshop with genuine airflow, not a bedroom.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"faq\"\u003e\n\u003csummary\u003eWhat safety kit do I actually need?\u003c\/summary\u003e\n\u003cp\u003eNitrile gloves — not latex, which resin degrades — plus eye protection when handling liquid resin or used IPA. If you use a handheld UV lamp, UV-blocking glasses rated for 385–405 nm. Waste resin, contaminated wipes and saturated IPA should be cured solid under UV and disposed of as chemical waste, never poured down a drain. None of this is elaborate, but it is not optional either.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does Tilt Release actually change day to day?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard MSLA machines lift the model straight up off the release film after each layer, and that suction force is what tears delicate supports and pulls tall models off the plate. Tilt Release tips the tank instead, so the layer peels from one edge rather than all at once. In practice you get fewer failed prints on tall or thin geometry, less strain on supports, and much shorter layer cycles.\"}},{\"@type\":\"Question\",\"name\":\"Why does the resin tank need heating to 30 C?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Resin viscosity changes sharply with temperature. In a cold workshop it thickens, flows back slowly between layers and cures inconsistently, which shows up as poor layer adhesion or separated layers. Holding the tank at 30 C keeps viscosity stable so results in January match results in July. If your printing space is unheated, this matters more than any resolution difference.\"}},{\"@type\":\"Question\",\"name\":\"Should I choose the Saturn 4 Ultra 12K or the 16K version?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Both have the same footprint, Tilt Release, heated tank and 150 mm\/h. The only meaningful difference is pixel pitch — 19 x 24 um here against 14 x 19 um on the 16K. For miniatures, models and general prototyping this is the sensible choice. Step up to 16K for jewellery casting masters or dental work, where the finer pitch has functional rather than cosmetic consequences.\"}},{\"@type\":\"Question\",\"name\":\"Can I leave a Saturn 4 Ultra running unattended overnight?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The AI camera with chamber light gives real-time monitoring and alerts for empty plates or warped models, and power-loss recovery resumes after an outage, so long plates are practical. The real constraint is ventilation: resin off-gasses throughout a print and a sealed room accumulates VOCs over an overnight run. Run long jobs in a garage or workshop with genuine airflow, not a bedroom.\"}},{\"@type\":\"Question\",\"name\":\"What safety kit do I need for resin printing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Nitrile gloves — not latex, which resin degrades — plus eye protection when handling liquid resin or used IPA. If you use a handheld UV lamp, UV-blocking glasses rated for 385-405 nm. Waste resin, contaminated wipes and saturated IPA should be cured solid under UV and disposed of as chemical waste, never poured down a drain.\"}}]}\u003c\/script\u003e\n\n\u003ch2\u003eBuying from Eolas Prints\u003c\/h2\u003e\n\u003cp\u003eWe are a specialist 3D printing supplier in Cantabria, Spain, shipping across Spain and the EU, holding resin consumables here. If you are choosing between the Saturn 4, this and the 16K, \u003ca href=\"\/en-pt\/pages\/contact\"\u003etalk to us\u003c\/a\u003e — the right answer depends on what you print and how often, not on the headline number.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"Elegoo","offers":[{"title":"Default Title","offer_id":54512473833799,"sku":"ELG-S4U-3D-PRN","price":531.64,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/1852\/8259\/files\/elegoo-saturn-4-ultra-msla-resin-3d-printer-black-gray-556.webp?v=1785840975","url":"https:\/\/eolasprints.com\/en-pt\/products\/elegoo-saturn-4-ultra-resin-3d-printer","provider":"Eolas Prints","version":"1.0","type":"link"}