{"product_id":"phaetus-conch-hot-end-for-qidi-plus-4-various-nozzle-diameters-fully-complete-with-heater-and-thermistor-installed","title":"Phaetus Conch Hot End for Qidi Plus 4 (Various Nozzle Diameters) - Fully Complete with Heater and Thermistor Installed","description":"\u003ch2\u003ePhaetus Conch Hotend for QIDI Plus4 — EndCoat Full-Metal Heatbreak, 30mm³\/s, 370°C\u003c\/h2\u003e\n\n\u003cp\u003eThe QIDI Plus4 is a capable machine with one well-documented weak point: the stock heatbreak spacer breaks under sustained high-temperature use, often requiring a full hotend replacement. The Phaetus Conch fixes that with a patent-pending EndCoat™ coated full-metal heatbreak that eliminates the spacer failure point entirely — while also pushing flow rates to 30mm³\/s and handling temperatures up to 370°C. This listing includes the complete hotend with heater and thermistor pre-installed.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-1.png?v=1756433627\u0026amp;width=3840\" alt=\"Phaetus Conch Hotend for QIDI Plus4 — full view with EndCoat heatbreak and QuickNozzle system\" style=\"width:100%;height:auto;\"\u003e\n\n\u003ch3\u003eEndCoat™ Full-Metal Heatbreak — Solves the Plus4's Weak Point\u003c\/h3\u003e\n\u003cp\u003eThe stock QIDI Plus4 heatbreak uses a spacer design that fractures under repeated thermal cycling and high-temperature loads — particularly when printing abrasive engineering filaments at sustained high speeds. The Phaetus Conch replaces the entire assembly with a patent-pending full-metal heatbreak coated with EndCoat™, Phaetus' precision-applied surface treatment that increases hardness and abrasion resistance on the heatbreak throat and nozzle tip. The patented rigid kinematic coupling system adds structural protection against heatbreak deformation — the failure mode the stock design is susceptible to.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-2.png?v=1756433641\u0026amp;width=3840\" alt=\"Phaetus Conch Hotend EndCoat full-metal heatbreak detail\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-3.png?v=1756433650\u0026amp;width=3840\" alt=\"Phaetus Conch rigid kinematic coupling system for QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\n\u003ch3\u003e30mm³\/s Flow Rate — 370°C Max Temperature\u003c\/h3\u003e\n\u003cp\u003eThe Conch's redesigned cooling fins use an inclined dendritic geometry that increases cooling surface area and accelerates heat dissipation compared to standard fin designs. The nickel-plated copper alloy heater block provides fast, uniform heat transfer. Flow channel roughness is maintained below Ra 0.2μm for smooth, consistent filament flow through the melt zone. The result is 30mm³\/s volumetric flow capacity at temperatures up to 370°C — the full range of what the Plus4's hotend system is capable of handling.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-4.png?v=1756433637\u0026amp;width=3840\" alt=\"Phaetus Conch hotend redesigned cooling fins inclined dendritic design\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-5.png?v=1756433680\u0026amp;width=3840\" alt=\"Phaetus Conch nickel-plated copper heater block and titanium alloy clamp\" style=\"width:100%;height:auto;\"\u003e\n\n\u003ch3\u003eEndCoat™ Nozzles — 2.5× Longer Service Life\u003c\/h3\u003e\n\u003cp\u003eThe replaceable EndCoat™ nozzles last up to 2.5 times longer than hardened steel nozzles under abrasive filament conditions — carbon fiber, glass fiber, glow-in-the-dark, and other wear-intensive materials. The 30-second QuickNozzle system allows nozzle swaps without tools and without full disassembly. Available in 0.2mm, 0.4mm, 0.6mm, and 0.8mm.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-6.png?v=1756433654\u0026amp;width=3840\" alt=\"Phaetus Conch EndCoat nozzle 2.5x wear resistance vs hardened steel\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-7.png?v=1756433662\u0026amp;width=3840\" alt=\"Phaetus Conch QuickNozzle 30-second replacement system\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-8.png?v=1756433694\u0026amp;width=3840\" alt=\"Phaetus Conch nozzle sizes 0.2 0.4 0.6 0.8mm for QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Printer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQIDI Plus4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Flow Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm³\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e370°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeatbreak\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEndCoat™ coated full-metal — patent pending\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeater Block\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNickel-plated copper alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTitanium alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Channel Roughness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;Ra 0.2μm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle Coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEndCoat™ — 2.5× service life vs hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle Sizes Available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2 \/ 0.4 \/ 0.6 \/ 0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNozzle Replacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuickNozzle — 30-second swap\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoupling System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePatented rigid kinematic — heatbreak deformation protection\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect replacement — no firmware changes, no custom brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComplete hotend with heater cartridge and thermistor pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-9.png?v=1756433646\u0026amp;width=3840\" alt=\"Phaetus Conch hotend specifications chart QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-10.png?v=1756433674\u0026amp;width=3840\" alt=\"Phaetus Conch hotend installation guide QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-11.png?v=1756433686\u0026amp;width=3840\" alt=\"Phaetus Conch compatible abrasive filaments carbon fiber glass fiber\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-12.png?v=1756433705\u0026amp;width=3840\" alt=\"Phaetus Conch flow channel roughness Ra 0.2um smooth extrusion\" style=\"width:100%;height:auto;\"\u003e\n\n\u003ch3\u003eInstallation Note — Hot Tightening Required\u003c\/h3\u003e\n\u003cp\u003eAlways perform hot tightening when installing or replacing nozzles. Nozzles tightened cold may develop gaps when the metal expands at temperature, causing filament leakage around the nozzle seat. Heat to operating temperature, then snug the nozzle with the provided tool. Use heat-resistant gloves and never touch the heater block or nozzle directly during this process.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-13.png?v=1756433666\u0026amp;width=3840\" alt=\"Phaetus Conch hot tightening guide nozzle installation\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-14.png?v=1756433705\u0026amp;width=3840\" alt=\"Phaetus Conch hotend cooling performance comparison\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-15.png?v=1756433689\u0026amp;width=3840\" alt=\"Phaetus Conch hotend print quality results QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\u003cimg src=\"https:\/\/www.phaetus.com\/cdn\/shop\/files\/qidi-16.png?v=1756433704\u0026amp;width=3840\" alt=\"Phaetus Conch hotend package contents QIDI Plus4\" style=\"width:100%;height:auto;\"\u003e\n\n\u003cp\u003e→ Browse all \u003ca href=\"\/collections\/3d-printer-hotends\"\u003e3D Printer Hotends\u003c\/a\u003e or explore our full \u003ca href=\"\/collections\/3d-printer-upgrades\"\u003e3D Printer Upgrades\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"West3D 3D Printing Supplies","offers":[{"title":".2mm","offer_id":52735674777894,"sku":"PHA3658.2M","price":27.99,"currency_code":"USD","in_stock":true},{"title":".4mm","offer_id":52735674810662,"sku":"PHA3650CON.4MHOT","price":27.99,"currency_code":"USD","in_stock":true},{"title":".6mm","offer_id":52735674843430,"sku":"PHA3651CON.6MHOT","price":27.99,"currency_code":"USD","in_stock":true},{"title":".8mm","offer_id":52735674876198,"sku":"PHA3659.8M","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/phaetus-conch-hot-end-for-qidi-plus-4-various-nozzle-diameters-fully-complete-with-heater-and-thermistor-installed-west3d-3d-printing-supplies-phaetus-9259418.webp?v=1773259454","url":"https:\/\/supplies3d.shop\/products\/phaetus-conch-hot-end-for-qidi-plus-4-various-nozzle-diameters-fully-complete-with-heater-and-thermistor-installed","provider":"SUPPLIES3D","version":"1.0","type":"link"}