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SUNLU S4 3D Printer Filament Dryer, Black | 4 Spools Capacity,3 Circulation Fans,Filament Dryer,350W PTC Heater,70℃ Max Temperature,Intelligent humidity detection

  • Based on 523 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Saturday, Sep 19
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Color: S4 Black


Features

  • 4 Spool Capacity: SUNLU 3D printer filament dryer S4 can dry up to four 1kg 3D printer filaments, enhancing drying efficiency and printing quality when drying while printing
  • Large Dimensions: SUNLU filament dryer S4 is notably large in size with external dimensions of 460(L) * 220(W) * 310(H)mm, internal dimensions of 450(L) * 175(W) * 207(H)mm, and net weight of 4KG
  • 8 Filament Exit Holes: SUNLU filament dryer S4 features eight filament outlets for multiple printers and various filament loading angles, ensuring smoother loading and printing
  • 350W PTC Heater: SUNLU filament dryer S4 is equipped with a 350W PTC heater, offering safety and higher heating efficiency (50% higher than the FilaDryer S2)
  • 3 Circulation Fans: Three high-quality fans circulate air inside, ensuring consistent temperature across the entire area for more even drying with 360 surround heating
  • Temperature Adjustment and Timer: Temperature setting range is 35-70C, timer setting range is 0-99 hours, allowing users to adjust parameters to suit filament conditions
  • High Compatibility: SUNLU filament dryer S4 supports a wide range of materials including PLA, PLA Plus, PLA Meta, PETG, ABS, TPU, PA, PC, Nylon, and is compatible with 1.75mm, 2.85mm, and 3.00mm filament diameters
  • DIY Customization Options: SUNLU filament dryer S4 can be modified to dry 3kg large rolls of filament or function as a shoe dryer with detailed video instructions available for the modification process
  • Complete Packing List: Includes FilaDryer S4, Power Cable, 8cm PTFE Tube (4 pieces), 100cm PTFE Tube (2 pieces), User Guide, Clips, and Silicone Plugs for comprehensive setup
  • Comprehensive Product Range: SUNLU provides a diverse selection of premium 3D printing solutions including 3D printer filament, filament dryers, FDM 3D printers, 3D printer resin, LCD 3D printers, resin curing boxes, 3D pens, filament refills and various accessories

Description

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Brand: SUNLU


Material: Filament Dryer S4


Color: S4 Black


Item Weight: 4 kg


Item Diameter: 10 inches


Brand Name: SUNLU


Additional Features: Large Capacity, Rapid Heating, Multi-level Safety Protection, Adjustable Humidity


Manufacturer Part Number: SLUS-FD-S4-BK-GMSLUS


Unit Count: 1 Count


Manufacturer: SUNLU


Number of Items: 1


Number of Packs: 1


Model Number: SUNLU 3D Printer Filament Dryer S4


Warranty Description: 1


Material Type: Filament Dryer S4


Color: S4 Black


Item Weight: 4 kg


Item Diameter: 10 inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nice drier, works well for multiple rolls
Color: S4 Black
Decent quality. Can dry four rolls in the same time as my old single roll drier. It is a large size, but that is necessitated by holding four rolls. Simple to set up, very quiet, and easy to load the rolls and set filament type. You can easily over ride pre-programmed profiles for each type of filament. You can also go to mode 2 and set the relative humidity and it will keep it there, useful when using to hold highly absorbent types of filament while it is fed to a printer. ... show more
Reviewed in the United States on June 28, 2026 by Arcus

  • Excellent dryer
Color: S4 Black
Had one at work to handle the drying for the prusa mk4s mmu. Worked great. Just upgraded to an elegoo cc2 at home and needed a multi spool dryer. Spools roll great - no issue hooking it directly up to the cc2 for active drying while printing. They’ve upgraded the 8x exits for the filament with thicker pieces that act more as a plug/cap combo than just a cap so you don’t lose the pieces. Comes with lots of presets for standard hobbyist filament and you can modify those as well. Excellent dryer for the value. ... show more
Reviewed in the United States on August 1, 2026 by Daniel French

  • Great dryer
Color: S4 Black
I have this set up right next to my Kobra X so I can print out of it. It comes with 2 Bowden tubes long enough to reach the printer so will need to buy some extra. The auto dry feature is awesome, it turns on and drys when it reaches a certain humidity level and turns off when it drops to a good one. ... show more
Reviewed in the United States on May 22, 2026 by Richard Quinones

  • Keeps filament dry so my pri ts and yours won't string
Color: S4 Black
Love it. Tired of wet filament. I set it.yp to dry and print. Much cheaper than AMS Pro. Just get it.
Reviewed in the United States on July 30, 2026 by J K.

  • Quality of the unit!! Amazing!! and happy 3d filaments!!
Color: S4 Black
A really well built machine for my filaments! Very versatile indeed! I have this paired to my Elegoo CC2 PRINTER and IT was much NEEDED with special filaments such as TPU works very well and also petG carbon fiber! Very smooth operation comes with very good bearings inside of the unit for all four spools to rotate like butter! The size is understandable but keeps every organized and feeds the four multi color system with no problems at all! The heater works really great even with and up to higher temperature filaments such as ASA and ABS type filaments!! This thing is a beast and is my first unit ever! Removes relative humidity in all the spools. Printing quality went skyrocketed to high quality with this unit! Not so loud but I definitely hear the and it's bearable and I was able to run it during the night without any issues or complaints from anyone!! Just wish at the top door latches were a bit bigger for more grasp but I can easily be 3D printed from one of the online 3D printables or thingiverse site! Got this on sale one time for just shy of $100 on sale here which was IMHO a great deal for the money! Perfect timing once I got my 1st 3D cc2 printer! Thank you SunLu!!! Can't wait to try your filament as I hear they're of very good quality to use projects that really matter with quality and finish! ... show more
Reviewed in the United States on July 16, 2026 by Luroc

  • Great overall dryer
Color: S4 Black
Great dryer! It improved the quality of my prints. Only improvement id make is to be able to toggle off the touch screen beep.
Reviewed in the United States on July 18, 2026 by Pablo

  • Avoid at all costs. This device is garbage.
Color: S4 Black
I bought two of these. Both started giving errors (shuts off the system and starts beeping like an SOB) within the first two months. Sunluu (who has, in my opinion, the absolute worst customer service on the planet) was useless and told me to complain to Amazon. Amazon rightly told me that the return policy was one month. Sunluu wouldn’t send me parts to fix it myself (though I was within their 1 year warranty). I like their filament a lot, and the idea of the dryer is great, but I’ve got two expensive paperweights unless I want to try to dry something below ~45 degrees. Go above that and the system shuts off. It’s a well documented issue (probably from Sunluu cheaping out on thermistors). I would recommend avoiding this, and any other device made by Sunluu. ... show more
Reviewed in the United States on August 6, 2026 by Weston Bird

  • What by other products from them
Color: S4 Black
Really works, the settings are very easy to navigate. A great job of drying filament.
Reviewed in the United States on July 15, 2026 by Thomas Vrieze

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