SUNLU S4 3D Printer Filament Dryer, Black | 4 Spools Capacity,3 Circulation Fans,Filament Dryer,350W PTC Heater,70℃ Max Temperature,Intelligent humidity detection
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Jul 27
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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 Kilograms
Item Diameter: 10 Inches
Brand Name: SUNLU
Manufacturer Part Number: SLUS-FD-S4-BK-GMSLUS
Unit Count: 1.0 Count
Manufacturer: SUNLU
Number of Items: 1
Model Number: SUNLU 3D Printer Filament Dryer S4
Warranty Description: 1
Item Weight: 4 Kilograms
Item Diameter: 10 Inches
Material Type: Filament Dryer S4
Color: S4 Black
Smart Home Compatibility: Not Smart Home Compatible
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 27
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
Overall, I’m very pleased with the S4. It does what it’s supposed to-dry filament-with the added bonus of being able to load 4 spools at once. Quite an upgrade from my old single spool dryer. Controls are easy to use, it’s not terribly loud (then again, I have an S1 in my bedroom and that noise doesn’t bother me either), and it’s very easy to print directly from the unit thanks to the numerous outlets for filament-4 on top, 2 on each end. If I have one complaint, it’s the lids. I’d have preferred that Sunlu make them permanently attached because these are a little difficult to keep on. When opening the dryer you have to push in a little tab on the lid and if the lid isn’t firmly seated, you’ll push it out. A very minor gripe but considering how well it’s built and how well it works, I’ll live with it.
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Reviewed in the United States on May 9, 2025 by MH205
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
So far it has performed very well. Living in San Diego humidity hasn't been a big problem with the filament I am using, but my prints usually take several hours, even days to complete and I don't want a failure due to moisture in my filament. I like that I can dry 4 rolls at once
Reviewed in the United States on February 28, 2026 by Bubba
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
Great filament dryer.
Reviewed in the United States on May 1, 2026 by Hal Palmer
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
Works great easy to use for some who is new to the whole 3D Printing world
Reviewed in the United States on March 28, 2026 by Misty
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
I keep the device in the MO2 mode, or what I call "ready to go" mode. As the humidity builds the machine will turn on and run until the humidity is brought back down so your filament is ready for immediate printing when you are. Each "end" of the machine has 4 places to output filament -- two on the top lid and two on the side. When using the holes on the top lid, this makes opening the lid awkward because the PTFE tubes are "captured" into the lid so they move with it and opening the other lid now you have to spread out the PTFE tubes coming out of the lid on the other side to make room. A better design would have been for the two spools on one end to be close together and the other two farther apart allowing for all 4 spools to exit out of the same end of the machine. ... and speaking of the lid, there is nothing to hold the lid open while you load and unload spools. If you are using the holes in the lid, since the PTFE tubes want to go back to their shape you can't open the lid and let go of it as the PTFE tubes will push it shut. During development someone *must* have had this complaint and Sunlu decided to do nothing and let the 3d printing community make their own solutions since it's cheaper and easier for them.
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Reviewed in the United States on June 30, 2024 by Customer
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
Reliable and super quiet. I've had one of these for a year and bought two more recently. They're set to run anytime the humidity gets high enough. Love them.
Reviewed in the United States on February 6, 2026 by Giraffe
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
A must have for anyone who 3D prints. Easily dries any filament with custom settings if you need to do a quick change.
Reviewed in the United States on May 6, 2026 by Zim
Size: 4 Spools Capacity Filament Dryer
Color: Black S4
Can't even get the thing to turn on anymore. When I plug it in or flip the power switch on the back, the screen lights up for about a second then goes dark again. When it worked it seemed okay, although it's a very cumbersome device, the lid is finicky and having the rolls stored in a 2x2 setup just makes the whole thing a hassle to feed filament from. I bought this specifically because Sunlu advertises this as having a 3d-printable extension for 3kg spools except the .stls are buried on their website and the models themselves are awful with broken geometry that doesn't fit on any regular consumer printer's buildplate and the sides aren't even perpendicular so it can't even lie flat. After some heavy edits within Prusaslicer I was able to get it to print but it's still a massive waste of filament and not something I'd recommend at all. The fact that it died after 4 months is just icing on the cake. Buy a few smaller dryers for your spools and call it a day, don't waste your money on this. Edit: After some fiddling, I have managed to get the dryer working again but even with a brand new power cable it has to be angled and weighed down in a specific way to stop the machine from randomly turning off. A consumer device with this fragile of a power interface is still crummy and I still don't recommend it.
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Reviewed in the United States on May 1, 2025 by Unix