{"product_id":"filadryer-s4-pro","title":"SUNLU FilaDryer S4 Pro — Dual-Chamber Filament Dryer 45-85°C","description":"\u003cp\u003e\n  \u003cmeta charset=\"UTF-8\"\u003e\n  \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n  \u003cmeta name=\"description\" content=\"SUNLU FilaDryer S4 Pro — dual-chamber filament dryer with independent 45-85°C control, smart humidity, and 70-85°C annealing for PLA, PETG, ABS, Nylon, PA-CF.\"\u003e\n  \u003cmeta name=\"keywords\" content=\"SUNLU FilaDryer S4 Pro, FilaDryer S4 Pro, SUNLU filament dryer, SUNLU 3D dryer, filament dryer, 3D filament dryer, dual chamber filament dryer, dual chamber 3D printer dryer, filament drying box, filament dehydrator, filament storage dryer, PLA dryer, PETG dryer, ABS dryer, Nylon dryer, TPU dryer, PA-CF dryer, PLA filament dryer, best filament dryer 2026, filament annealing, 3D printer accessory, 3D printing filament dryer, filament moisture control\"\u003e\n  \u003cmeta name=\"author\" content=\"SUNLU\"\u003e\n  \u003cmeta name=\"robots\" content=\"index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1\"\u003e\n  \u003cmeta name=\"googlebot\" content=\"index, follow\"\u003e\n  \u003cmeta name=\"rating\" content=\"general\"\u003e\n  \u003cmeta name=\"distribution\" content=\"global\"\u003e\n  \u003cmeta name=\"revisit-after\" content=\"7 days\"\u003e\n  \u003clink rel=\"canonical\" href=\"https:\/\/www.sunlu.com\/products\/sunlu-filadryer-s4-pro-dual-chamber-filament-dryer\"\u003e\n  \u003cmeta name=\"theme-color\" content=\"#1d1d1f\"\u003e\n  \u003cmeta property=\"og:type\" content=\"product\"\u003e\n  \u003cmeta property=\"og:title\" content=\"SUNLU FilaDryer S4 Pro — Dual-Chamber 3D Filament Dryer with Smart Humidity \u0026amp; Annealing\"\u003e\n  \u003cmeta property=\"og:description\" content=\"Dry two 3D printing filaments at once. Independent 45-85°C control per chamber, smart 25-50% humidity management, 70-85°C professional annealing, fits PLA, PETG, ABS, Nylon, PA-CF.\"\u003e\n  \u003cmeta property=\"og:url\" content=\"https:\/\/www.sunlu.com\/products\/sunlu-filadryer-s4-pro-dual-chamber-filament-dryer\"\u003e\n  \u003cmeta property=\"og:site_name\" content=\"SUNLU\"\u003e\n  \u003cmeta property=\"og:image\" content=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_01.jpg?v=1788834985\"\u003e\n  \u003cmeta property=\"og:image:width\" content=\"1200\"\u003e\n  \u003cmeta property=\"og:image:height\" content=\"630\"\u003e\n  \u003cmeta property=\"og:image:alt\" content=\"SUNLU FilaDryer S4 Pro dual-chamber 3D filament dryer — independent zones for simultaneous drying of PLA, PETG, ABS, and engineering materials\"\u003e\n  \u003cmeta name=\"twitter:card\" content=\"summary_large_image\"\u003e\n  \u003cmeta name=\"twitter:title\" content=\"SUNLU FilaDryer S4 Pro — Dual-Chamber 3D Filament Dryer\"\u003e\n  \u003cmeta name=\"twitter:description\" content=\"Independent 45-85°C control, smart humidity management, 70-85°C annealing. Dry two filaments at once.\"\u003e\n  \u003cmeta name=\"twitter:image\" content=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_01.jpg?v=1788834985\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"SUNLU FilaDryer S4 Pro Dual-Chamber 3D Filament Dryer\",\n  \"alternateName\": \"SUNLU FilaDryer S4 Pro Filament Dryer with Annealing\",\n  \"image\": [\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_01.jpg?v=1788834985\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_02.jpg?v=1788834981\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_04.jpg?v=1788834983\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_05.jpg?v=1788834983\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_06.jpg?v=1788834983\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_07.jpg?v=1788834983\",\n    \"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_08.jpg?v=1788834985\"\n  ],\n  \"description\": \"The SUNLU FilaDryer S4 Pro is a professional dual-chamber 3D filament dryer with two independent zones (45-85°C each), smart humidity control (25-50% range), and 70-85°C professional annealing support. 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The two independent chambers save me so much time compared to my old single-zone unit. Only minor nit: the fan is slightly louder than I expected, but it does the job well. Drying 6 spools of wet PETG overnight worked perfectly.\"\n    },\n    {\n      \"@type\": \"Review\",\n      \"reviewRating\": {\"@type\": \"Rating\", \"ratingValue\": \"5\", \"bestRating\": \"5\"},\n      \"author\": {\"@type\": \"Person\", \"name\": \"Priya N.\"},\n      \"datePublished\": \"2026-08-20\",\n      \"reviewBody\": \"I run a small print farm and this is now essential equipment. The ability to anneal PA-CF prints in the same unit without swapping spools is brilliant. Build quality feels premium, and the smart humidity feature actually works — no more guessing.\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the SUNLU FilaDryer S4 Pro?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The SUNLU FilaDryer S4 Pro is a professional dual-chamber 3D filament dryer designed to remove moisture from 3D printing filaments. It features two independent chambers with separate temperature control, allowing different filament types to be dried simultaneously at precise temperatures between 45°C and 85°C.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can the FilaDryer S4 Pro dry two different filaments at the same time?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The S4 Pro features a dual-chamber design with built-in thermal insulation panels that divide the unit into two independent zones. 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The S4 Pro provides a stable 70-85°C annealing environment specifically designed for engineering filaments. After printing with materials like PA-CF, PC, or Nylon, models can undergo 2-3 hours of annealing inside the dryer to optimize mechanical performance, reduce internal stresses, and improve overall durability.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the smart humidity control work?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The FilaDryer S4 Pro continuously monitors humidity inside each chamber. The system automatically activates heating and dehumidification when internal humidity reaches the preset range of 30-50%, and stops when humidity drops to 25%. This active moisture management effectively prevents secondary moisture absorption and keeps filaments dry during long-term storage.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the FilaDryer S4 Pro safe to leave running overnight?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The S4 Pro is built with multiple redundant safety protection systems, including PTC heating, a metal-shaft cooling fan, dual temperature protection switches, and intelligent software temperature control. These layered safety features ensure stable and reliable operation even during long unattended drying sessions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does it take to dry filament in the S4 Pro?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Drying time depends on the filament type, moisture level, and temperature setting. Generally, PLA takes 4-6 hours at 45-50°C, PETG takes 4-6 hours at 60-65°C, and engineering materials like Nylon or PA-CF may take 6-12 hours at 75-85°C. For severely wet filaments, overnight drying (8-12 hours) is recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What filament diameters and types are compatible with the FilaDryer S4 Pro?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The S4 Pro supports both 1.75mm and 2.85mm filaments and is compatible with all common 3D printing materials including PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC, and PA-CF. Each chamber fits 1-2 standard 1KG spools depending on spool dimensions. Refer to the product manual for exact spool size limits.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the FilaDryer S4 Pro compare to single-chamber filament dryers?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Unlike single-chamber dryers, the SUNLU FilaDryer S4 Pro has two fully independent zones with separate temperature control. This means you can dry PLA and engineering filaments like PA-CF at different temperatures simultaneously, doubling throughput and eliminating wait time between batches. 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PA-CF\u003c\/h1\u003e\n\n\u003ch2 class=\"feature-title\"\u003e\n\u003cimg loading=\"eager\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_01.jpg?v=1788834985\" alt=\"SUNLU FilaDryer S4 Pro dual-chamber 3D filament dryer — two independent drying zones separated by thermal insulation panels for simultaneous filament drying\"\u003e【Dual-Chamber Design】Independent Zones, No Interference\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eBuilt-in thermal insulation panels divide the chamber into two independent zones, enabling separate space management and allowing different filaments to be processed simultaneously.\u003c\/p\u003e\n\u003cp class=\"feature-description\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_02.jpg?v=1788834981\" alt=\"Close-up of the SUNLU FilaDryer S4 Pro thermal insulation panel separating the two independent drying chambers for 3D printing filaments\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"feature-title\"\u003e【Precise Temperature Control】Dual Heating Channels, Independent Control\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eEquipped with dual independent heating systems, it supports precise temperature control from 45–85°C in each chamber, allowing different filament types to be dried at the same time.\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_04.jpg?v=1788834983\" alt=\"SUNLU FilaDryer S4 Pro dual heating channels providing independent 45-85°C temperature control in each drying chamber for 3D filaments\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"feature-title\"\u003e【Professional Annealing】Unlock the Full Potential of Engineering Materials\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eSupports a stable 70–85°C annealing environment. After printing with engineering filaments, models can undergo 2–3 hours of annealing treatment to optimize mechanical performance and overall durability.\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_05.jpg?v=1788834983\" alt=\"SUNLU FilaDryer S4 Pro professional annealing mode at 70-85°C for 2-3 hours to optimize PA-CF, PC, and Nylon 3D printed parts\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"feature-title\"\u003e【Smart Humidity Control】Active Moisture Management, Keeps Filaments Dry\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eIntelligently monitors and regulates internal humidity. The system automatically activates when humidity reaches the preset range (30%–50%) and stops when humidity drops to 25%, effectively reducing secondary moisture absorption.\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_06.jpg?v=1788834983\" alt=\"SUNLU FilaDryer S4 Pro smart humidity control panel — automatic activation at 30-50% and stop at 25% to prevent secondary moisture absorption in 3D filaments\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"feature-title\"\u003e【Dual Control on One Screen】Simple Operation, Full Visibility\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eA single display provides complete control of both chambers, allowing real-time monitoring of temperature and operating status for a more intuitive user experience.\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_07.jpg?v=1788834983\" alt=\"SUNLU FilaDryer S4 Pro single-screen dual-chamber control interface with real-time temperature and humidity monitoring for 3D filament drying\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"feature-title\"\u003e【Safe \u0026amp; Reliable】Triple Protection for Stable Operation\u003c\/h2\u003e\n\u003cp class=\"feature-description\"\u003eCombines a PTC heating system, metal-shaft cooling fan, dual temperature protection switches, and intelligent software temperature control to create a comprehensive multi-layer safety protection system.\u003c\/p\u003e\n\n\u003ch2 class=\"downloads-title\"\u003eParameter Information\u003c\/h2\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/sunlu-FilaDryer_S4_Pro_08.jpg?v=1788834985\" alt=\"SUNLU FilaDryer S4 Pro dual-chamber 3D filament dryer complete technical specifications and parameter information reference chart\"\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"sr-only\"\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout the SUNLU FilaDryer S4 Pro Dual-Chamber 3D Filament Dryer\u003c\/h2\u003e\n\u003cp\u003eThe SUNLU FilaDryer S4 Pro is a professional-grade dual-chamber 3D filament drying system engineered for 3D printing enthusiasts, makers, and professional print farms. Unlike conventional single-chamber dryers, the S4 Pro features two fully independent drying zones separated by built-in thermal insulation panels, allowing you to dry different filament types simultaneously at their ideal temperatures.\u003c\/p\u003e\n\u003cp\u003eEach chamber is equipped with its own dedicated heating channel supporting precise temperature control from 45°C to 85°C. This means you can dry PLA at 50°C in one chamber while simultaneously annealing Nylon at 80°C in the other, without any thermal interference. The system also supports a stable 70-85°C annealing environment for engineering filaments, where printed models can undergo 2-3 hours of post-processing to optimize mechanical strength and dimensional stability.\u003c\/p\u003e\n\u003cp\u003eActive humidity management is handled by intelligent sensors that continuously monitor internal moisture levels. The system automatically activates when humidity reaches 30-50% and stops at 25%, preventing secondary moisture absorption and keeping your filaments in optimal condition during long-term storage. This makes the FilaDryer S4 Pro not just a dryer, but also a long-term filament storage solution.\u003c\/p\u003e\n\u003cp\u003eOperation is streamlined through a single display screen that provides complete control and real-time monitoring of both chambers. Safety is built-in with PTC heating elements, a metal-shaft cooling fan, dual temperature protection switches, and intelligent software temperature control, creating multiple redundant layers of protection for stable, reliable operation. The SUNLU FilaDryer S4 Pro is compatible with PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC, and PA-CF filaments in both 1.75mm and 2.85mm diameters.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!----\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications — SUNLU FilaDryer S4 Pro\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccaption\u003eSUNLU FilaDryer S4 Pro Dual-Chamber 3D Filament Dryer Technical Specifications\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSUNLU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFilaDryer S4 Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDual-Chamber 3D Filament Dryer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChamber Count\u003c\/td\u003e\n\u003ctd\u003e2 (independent dual chamber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e45°C – 85°C (per chamber, independently controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating System\u003c\/td\u003e\n\u003ctd\u003eDual independent heating channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnnealing Temperature\u003c\/td\u003e\n\u003ctd\u003e70°C – 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnnealing Duration\u003c\/td\u003e\n\u003ctd\u003e2 – 3 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Activation Range\u003c\/td\u003e\n\u003ctd\u003e30% – 50%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Stop Threshold\u003c\/td\u003e\n\u003ctd\u003e25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation\u003c\/td\u003e\n\u003ctd\u003eBuilt-in thermal insulation panels between chambers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eSingle screen, dual-chamber control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Systems\u003c\/td\u003e\n\u003ctd\u003ePTC heating, metal-shaft cooling fan, dual temperature protection switches, intelligent software control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Filaments\u003c\/td\u003e\n\u003ctd\u003ePLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC, PA-CF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Filament Diameter\u003c\/td\u003e\n\u003ctd\u003e1.75mm and 2.85mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpool Capacity per Chamber\u003c\/td\u003e\n\u003ctd\u003e1–2 standard 1KG spools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003e⚠️ TBD (e.g., CE \/ FCC \/ RoHS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!----\u003e\n\u003csection\u003e\n\u003ch2\u003eComparison: FilaDryer S4 Pro vs Single-Chamber Dryers vs Other Dual-Chamber Models\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccaption\u003eDual-Chamber 3D Filament Dryer Comparison\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSUNLU FilaDryer S4 Pro\u003c\/th\u003e\n\u003cth\u003eStandard Single-Chamber Dryer\u003c\/th\u003e\n\u003cth\u003eTypical Dual-Chamber Dryer\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChambers\u003c\/td\u003e\n\u003ctd\u003e2 (independent)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e2 (often shared control)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndependent Temperature\u003c\/td\u003e\n\u003ctd\u003eYes (45-85°C each)\u003c\/td\u003e\n\u003ctd\u003eSingle setting only\u003c\/td\u003e\n\u003ctd\u003eOften shared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Annealing\u003c\/td\u003e\n\u003ctd\u003e70-85°C, 2-3h\u003c\/td\u003e\n\u003ctd\u003eRare or absent\u003c\/td\u003e\n\u003ctd\u003eSometimes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmart Humidity Control\u003c\/td\u003e\n\u003ctd\u003e25-50% auto-managed\u003c\/td\u003e\n\u003ctd\u003eManual or basic\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eSingle screen, dual control\u003c\/td\u003e\n\u003ctd\u003eSingle screen\u003c\/td\u003e\n\u003ctd\u003eDual screens often\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Systems\u003c\/td\u003e\n\u003ctd\u003ePTC + dual switches + software\u003c\/td\u003e\n\u003ctd\u003eBasic thermostat\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Insulation\u003c\/td\u003e\n\u003ctd\u003eBuilt-in panels\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eSometimes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvernight Operation\u003c\/td\u003e\n\u003ctd\u003eMulti-layer safe\u003c\/td\u003e\n\u003ctd\u003eRisky\u003c\/td\u003e\n\u003ctd\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilament Storage Function\u003c\/td\u003e\n\u003ctd\u003eYes, with humidity control\u003c\/td\u003e\n\u003ctd\u003eSometimes\u003c\/td\u003e\n\u003ctd\u003eRare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!----\u003e\n\u003csection\u003e\n\u003ch2\u003eRecommended Drying Settings by Filament Type\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePLA \/ PLA+: 45-50°C, 4-6 hours\u003c\/li\u003e\n\u003cli\u003ePETG: 60-65°C, 4-6 hours\u003c\/li\u003e\n\u003cli\u003eABS \/ ASA: 70-80°C, 4-6 hours\u003c\/li\u003e\n\u003cli\u003eTPU: 50-55°C, 6-8 hours\u003c\/li\u003e\n\u003cli\u003eNylon (PA): 75-85°C, 6-12 hours\u003c\/li\u003e\n\u003cli\u003ePC (Polycarbonate): 75-85°C, 6-8 hours\u003c\/li\u003e\n\u003cli\u003ePA-CF \/ PA-GF: 75-85°C, 8-12 hours\u003c\/li\u003e\n\u003cli\u003eProfessional Annealing (post-print): 70-85°C, 2-3 hours\u003c\/li\u003e\n\u003cli\u003eLong-term Filament Storage: 35-45°C, continuous with smart humidity control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!----\u003e\n\u003csection\u003e\n\u003ch2\u003eFrequently Asked Questions About the SUNLU FilaDryer S4 Pro\u003c\/h2\u003e\n\u003ch3\u003eWhat is the SUNLU FilaDryer S4 Pro?\u003c\/h3\u003e\n\u003cp\u003eThe SUNLU FilaDryer S4 Pro is a professional dual-chamber 3D filament dryer designed to remove moisture from 3D printing filaments. It features two independent chambers with separate temperature control, allowing different filament types to be dried simultaneously at precise temperatures between 45°C and 85°C.\u003c\/p\u003e\n\u003ch3\u003eCan the FilaDryer S4 Pro dry two different filaments at the same time?\u003c\/h3\u003e\n\u003cp\u003eYes. The S4 Pro features a dual-chamber design with built-in thermal insulation panels that divide the unit into two independent zones. Each chamber has its own heating system, allowing you to dry different filament types — such as PLA at 50°C and PETG at 70°C — at the same time without thermal interference.\u003c\/p\u003e\n\u003ch3\u003eWhat temperature range does the FilaDryer S4 Pro support?\u003c\/h3\u003e\n\u003cp\u003eThe FilaDryer S4 Pro supports precise temperature control from 45°C to 85°C in each chamber independently. This range covers drying requirements for most 3D printing filaments, including PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, and PC. The system uses dual heating channels with intelligent software control for stable, accurate temperatures.\u003c\/p\u003e\n\u003ch3\u003eDoes the FilaDryer S4 Pro support filament annealing?\u003c\/h3\u003e\n\u003cp\u003eYes. The S4 Pro provides a stable 70-85°C annealing environment specifically designed for engineering filaments. After printing with materials like PA-CF, PC, or Nylon, models can undergo 2-3 hours of annealing inside the dryer to optimize mechanical performance, reduce internal stresses, and improve overall durability.\u003c\/p\u003e\n\u003ch3\u003eHow does the smart humidity control work?\u003c\/h3\u003e\n\u003cp\u003eThe FilaDryer S4 Pro continuously monitors humidity inside each chamber. The system automatically activates heating and dehumidification when internal humidity reaches the preset range of 30-50%, and stops when humidity drops to 25%. This active moisture management effectively prevents secondary moisture absorption and keeps filaments dry during long-term storage.\u003c\/p\u003e\n\u003ch3\u003eIs the FilaDryer S4 Pro safe to leave running overnight?\u003c\/h3\u003e\n\u003cp\u003eYes. The S4 Pro is built with multiple redundant safety protection systems, including PTC heating, a metal-shaft cooling fan, dual temperature protection switches, and intelligent software temperature control. These layered safety features ensure stable and reliable operation even during long unattended drying sessions.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to dry filament in the S4 Pro?\u003c\/h3\u003e\n\u003cp\u003eDrying time depends on the filament type, moisture level, and temperature setting. Generally, PLA takes 4-6 hours at 45-50°C, PETG takes 4-6 hours at 60-65°C, and engineering materials like Nylon or PA-CF may take 6-12 hours at 75-85°C. For severely wet filaments, overnight drying (8-12 hours) is recommended.\u003c\/p\u003e\n\u003ch3\u003eWhat filament diameters and types are compatible with the FilaDryer S4 Pro?\u003c\/h3\u003e\n\u003cp\u003eThe S4 Pro supports both 1.75mm and 2.85mm filaments and is compatible with all common 3D printing materials including PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC, and PA-CF. Each chamber fits 1-2 standard 1KG spools depending on spool dimensions. Refer to the product manual for exact spool size limits.\u003c\/p\u003e\n\u003ch3\u003eHow does the FilaDryer S4 Pro compare to single-chamber filament dryers?\u003c\/h3\u003e\n\u003cp\u003eUnlike single-chamber dryers, the SUNLU FilaDryer S4 Pro has two fully independent zones with separate temperature control. This means you can dry PLA and engineering filaments like PA-CF at different temperatures simultaneously, doubling throughput and eliminating wait time between batches. It also includes smart humidity management and 70-85°C professional annealing, which most single-chamber units lack.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!----\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout SUNLU — 3D Printing Materials \u0026amp; Accessories\u003c\/h2\u003e\n\u003cp\u003eSUNLU is a global brand specializing in 3D printing materials and accessories, recognized for quality and innovation across filaments, dryers, and printing tools. With professional production lines and rigorous quality control, SUNLU offers a complete ecosystem including PLA, PLA Matte, PLA Silk, PETG, ABS, TPU, Nylon, and engineering compounds, plus the FilaDryer series of filament dryers, 3D pens, and printing accessories. All products undergo strict testing to ensure reliable performance across 99% of FDM 3D printers on the market.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Creatorally","offers":[{"title":"BR \/ 110V","offer_id":47153117659308,"sku":"3705-018917-01U0F","price":99.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/8554\/4620\/files\/GS111160-05-1.jpg?v=1788835095","url":"https:\/\/creatorally.com\/de\/products\/filadryer-s4-pro","provider":"Creatorally","version":"1.0","type":"link"}