SKU: 39282701410

SUNLU FilaDryer S4 3D Printer Filament Dryer Box

Sale price$180.00 Regular price$200.00
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Description

SUNLU FilaDryer S4 3D Printer Filament Dryer BoxThe SUNLU FilaDryer S4 is the FIRST filament dryer to fit FOUR filaments at once! Features Holds up to 4 rolls of 1kg filament Eight filament holes for multiple filament drying and concurrent printing PTC heating element and 3 fans for quick heating to 70C PTC heater power: 330W, 6. 9 times stronger than S2 Pre configured temperature settings for PLA, ABS, PETG, TPU, PA, and PC available Adjustable temperature and heating time Auto humidity control

 

The SUNLU FilaDryer S4 is the FIRST filament dryer to fit FOUR filaments at once!

Features

  • Holds up to 4 rolls of 1kg filament
  • Eight filament holes for multiple filament drying and concurrent printing
  • PTC heating element and 3 fans for quick heating to 70°C
  • PTC heater power: 330W, 6.9 times stronger than S2
  • Pre-configured temperature settings for PLA, ABS, PETG, TPU, PA, and PC available
  • Adjustable temperature and heating time
  • Auto humidity control function
  • Two-level temperature control safety switch
  • Soft gel layer on roller prevents issues from high temperature
  • Compatible with 1.75mm, 2.85mm, 3.0mm diameter filaments
  • Compatible with all models of 3D Printers
  • Touchscreen control

 

SUNLU FilaDryer S4 comes with a design size of 458mm*218mm*312mm. It contains up to 4 rolls of 1kg filament. Plus, it is equipped with eight filament holes, and PTFE tubes, which meets the users' demands for drying multiple filaments and for concurrent printing while drying with multiple printers.

SUNLU FilaDryer S4 is equipped with the PTC (Positive Temperature Coefficient) heating element and a triple-fan configuration and therefore it demonstrates enhanced heating efficiency by being able to heat up to 70°C in a shorter amount of time. The PTC heater boasts a heating power of 330W, 6.9 times more powerful than SUNLU FilaDryer S2. The 3 well-positioned fans also ensure even heating and drying.

SUNLU FilaDryer S4 comes with pre-configured temperature settings of commonly used filaments such as PLA, ABS, PETG, as well as TPU, PA and PC. These configurations are based on testing data, providing optimal drying time and temperature. By expanding options while reducing setup complexities, we aim to improve your experience.

With the auto humidity control function, when the humidity in the box reaches the set value (30%-50%) it will automatically start until the humidity drops to 25%, and then stop, to better meet the humidity needs of different types of filaments.

Integrating the PTC heating element and a two-level temperature control safety switch design provides a dual-safeguard system. Moreover, a soft gel layer is applied to the roller to prevent issues caused by prolonged high-temperature exposure, effectively offsetting the risk of minor spool deformation that could rise rotational disruptions. 

SUNLU FilaDryer S4 supports all models of 3D printers connected to use; supporting 4 printers in drying filaments during printing. Compatible with filaments of diameter 1.75mm, 2.85mm, 3.0mm.


Specifications

  • Model: SUNLU FilaDryer S4
  • Heating Temperature: 70°C
  • Filament Capacity: 1KG x 4
  • Applicable Filaments Types: PLA, ABS, PETG, TPU, PA, PC etc
  • Compatible Filament Diameters: 1.75mm, 2.85mm, 3.0mm
  • Heater: PTC with 3 Fans
  • Heat Time (25°C to 50°C): 30mins
  • Heat Time (25°C to 70°C): 50mins
  • Interior Temperature Balance: ± 3°C
  • Humidity Regulation Mode: Auto-drying when humid
  • Desiccant: Yes
  • Touch Screen: Yes
  • LED Status Display: Yes
  • Filament Holes: 8 (PTFE available)
  • Power Input: AC 110V~240V 50Hz/60Hz 330W
  • Product Size: 458*218*312mm (including the height of the tripod)
  • Inner Size: 450*210*211mm
  • Net Weight: 4.8KG
  • Packaging Size: 516*278*350mm
  • Gross Weight: 5.5KG
  • QTY/BOX: 1pc
  • Colour: Black
  • Plug: SG/UK

 

Packing List

  • 1 x S4 drying box
  • 1 x power adapter (SG/UK Plug)
  • 1 x user manual
  • 2 x Teflon tubes (100cm)
  • 4 x Teflon tubes (8cm)

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39282701410

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El Diablo
Battle Creek, US
★★★★★ 1
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Size: 6FT*6FT, Color: Black
This product is absolute garbage! It literally took all day to put it together and if the air conditioning blows on it the wrong way than the whole thing top over and it falls apart. It’s not made of quality material and is very flimsy. The only reason I’m not returning it is because it’s too difficult to put together and I don’t wanna spend that much time trying to take it apart. Do not buy this!
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Reviewed in the United States on September 25, 2025
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Natasha Spencer
Waukegan, US
★★★★★ 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
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Reviewed in the United States on April 18, 2026
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Chris Stockbridge
Lake Worth, US
★★★★★ 5
Worth the investment
Size: 1 Panel, Size: 1 Panel
I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.
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Reviewed in the United States on February 19, 2026
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Interloper
New York, US
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
Size: 1 Panel
Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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Reviewed in the United States on February 25, 2026
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JAMES HAYES
West Palm Beach, US
★★★★★ 4
Instructions are useless
Size: 1 Panel
The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.
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