Maintaining dry filament is essential for achieving high-quality 3D prints without issues like clogging and poor adhesion. Filament dryer boxes remove moisture from filaments such as PLA, ABS, PETG, and TPU, ensuring smoother prints and longer filament life. Below is a summary table of the top 3D printer filament dryer boxes available on Amazon, followed by detailed reviews of each model to help you choose the best filament dryer box for your needs.
| Product | Brand | Key Features |
|---|---|---|
| SUNLU Filament Dryer Box S1 Plus | SUNLU | Fan-assisted drying, adjustable temp 35-55℃, LCD display |
| Comgrow 3D Printer Filament Dryer Box | Comgrow | Stores 2 spools, heating removes moisture, supports 1.75 & 2.85mm filaments |
| SUNLU Official Filament Dryer Box S4 | YOOPAI | Four-spool capacity, rapid heating to 70°C, auto humidity control |
| Comgrow SH02 Filament Dryer Box | Comgrow | 2 spool holder, 360° PTC fast heater, one-key settings for 9 filament types |
| Creality Official Filament Dryer Box 2.0 | Creality | Built-in fan, heats up to 65°C, real-time humidity monitoring |
SUNLU Filament Dryer Box S1 Plus with Fan and LCD Display
The SUNLU Filament Dryer Box S1 Plus features an upgraded fan design that accelerates moisture discharge from filaments, reducing issues caused by humidity such as stringing and clogged nozzles. Its 2-inch LCD screen visually displays real-time temperature, drying time, and humidity, allowing precise control for different filament types. Users can customize the temperature from 35℃ to 55℃ and set drying times according to their filament and environment. This dryer supports filament diameters of 1.75mm, 2.85mm, and 3mm and improves printing by delivering smoother surfaces and better layer adhesion.
Comgrow 3D Printer Filament Dryer Box for 2 Spools
The Comgrow 3D Printer Filament Dryer Box offers a large storage volume capable of holding two 1kg filament spools simultaneously. It is compatible with 1.75mm and 2.85mm filament diameters and supports PLA, ABS, and silk filaments. The dehydrator heats the interior during printing to maintain a dry environment, helping prevent filament entanglement, clogging, poor adhesion, and layer migration caused by moisture. Users set the temperature and drying duration on the digital screen, and the device automatically powers off after 3 minutes if no work mode is detected. The manufacturer provides responsive after-sales support for any technical issues.
SUNLU Official Filament Dryer Box S4 with Four-Spool Capacity
The SUNLU S4 Filament Dryer Box is the first model capable of drying up to four 1kg spools at once. Equipped with eight filament holes and PTFE tubes, it supports simultaneous multi-printer use. Its PTC heating element and triple-fan system provide rapid, evenly distributed heating reaching up to 70°C. The advanced 350W heater is significantly more powerful than previous models, enabling faster drying. A high-precision humidity sensor displays real-time moisture levels and automatically activates drying when humidity exceeds 50%, preventing secondary moisture exposure. The S4 serves both as a dryer and a storage box for filaments like PLA, PETG, ABS, TPU, and PA.
Comgrow SH02 Filament Dryer Box with 360° Fast Heater
The Comgrow SH02 Filament Dryer Box supports drying two 1kg spools simultaneously, fitting print setups with multiple extruder positions. It uses a 150W PTC heater with 360° hot air circulation for uniform and fast drying, reaching up to 70°C within 25 minutes. The dryer includes one-key settings preconfigured for nine different filament types, including PLA, TPU, PETG, ABS, ASA, and more, making drying convenient and effective without manual temperature adjustments. The drying time can be set up to 98 hours to accommodate various filament needs.
Creality Official Filament Dryer Box 2.0 with Fan and Real-Time Monitoring
The Creality Filament Dryer Box 2.0 features an upgraded design that heats up quickly and uses a built-in fan for 360° hot air circulation, evenly drying filaments inside the chamber. It reaches 65°C within 15 minutes and has thermal insulation cotton lining the interior to maintain warmth and provide an anti-scald surface during printing. This model includes a display screen and knob for simple operation, showing real-time humidity and countdown for drying hours. It improves print quality by preventing filament issues caused by moisture and supports a wide variety of filament materials such as PLA, PETG, ABS, TPU, and Nylon.
Buying Guide for 3D Printer Filament Dryer Boxes
When selecting a filament dryer box, consider these key factors to ensure optimal drying performance and improved printing quality:
Drying Capacity and Spool Size
- Number of Spools: Choose a box based on how many filament spools you need to store and dry. Models range from holding 1 to 4 spools.
- Spool Diameter: Most dryers accommodate common spool diameters like 1.75mm and 2.85mm; verify compatibility with your filament.
Heating Technology and Temperature Range
- Heating Elements: PTC heaters generally provide faster, more uniform heating compared to standard heating pads.
- Temperature Control: Adjustable temperature settings allow customization for different filament types. Typical ranges are 35°C to 70°C.
Humidity Monitoring and Control
- Auto Humidity Sensors: Dryer boxes with sensors can maintain optimal humidity levels automatically, activating drying as needed.
- Display Screens: Visual displays for temperature, humidity, and drying time improve user control and tracking.
Ease of Use and Additional Features
- User Interface: Look for easy operation through buttons, knobs, or touchscreens allowing preset filament profiles or manual settings.
- Filament Feed Holes: Ensure the dryer box includes filament holes with PTFE tubes for printing while drying.
- Energy Efficiency: Models with PTC heaters and well-insulated chambers consume less power while maintaining heat.
Compatibility and Filament Types
- Supported Filaments: Ensure dryer compatibility with your filament types such as PLA, ABS, PETG, TPU, PA, and specialty materials.
- Multi-Filament Drying: If you print with various materials, choose a dryer with presets or adjustable settings for multiple filament types.
By considering these aspects in your purchase decision, you can select a filament dryer box that fits your printing setup and helps you maintain consistently high-quality 3D prints.