【2025 Special Bundle】 SUNLU Official Filament Dryer Box S4,Four-Spool 3D Printer Dehydrator with Rapid Heating, Auto Humidity Control, and Advanced Triple Fan Upgrade, Fits PLA,PETG,ABS,TPU,PA,etc.

Solid drier. I print a lot of filament and a single spool dryer just wasn't going to cut it for my needs. This 4 spool dryer works well and does exactly what i need. I really like that it has outlets for using as a dry and print box. I print directly from this dryer on my bed slingers and the quality had really improved printing from a dry roll. Keeping your filament dry is keep to reducing stringing and having it stay within the box helps reduce tangles. The dryer has a solid amount of preset choices for temperatures for a variety of filaments, but you can fine tune it for any specialty filament. My only wish would be that it was split and could dry 2 types of filament at the same time. However I just throw them in as a little extra temperature doesn't appear to affect my PLA when drying with PETG.

This SUNLU S4 filament dryer absolutely works like a champ. It heats up quickly, maintains a stable temperature, and the automatic humidity control is a great feature that I didn’t realize I needed until I had it. I love that it can handle four spools at once—super convenient for anyone who prints often or rotates between materials. The upgraded fans circulate air evenly, and I’ve already noticed a big improvement in print quality with moisture-sensitive filaments like PETG and TPU. The whole unit feels well-built and easy to operate. If you want a reliable, efficient filament dryer that just works, this is a great pick.

The Sunlu filament dryer works well. All of their products are great quality at a decent price. The customer service is great. It's easy to operate just remember to rotate your spools. It comes with a few tubes ready to connect to your printer.

I bought the SUNLU S4 bundle to dry my filament before starting my custom 3D projects, and it has been a game-changer. Living in a humid area, moisture is always a problem, but this box keeps everything perfectly dry. I now print directly from the dryer box using the built-in PTFE outlets. The four-spool capacity is amazing I can keep my most-used filaments ready to go at all times. The heating is very fast and it maintains a consistent temperature throughout the box. If you want to eliminate bubbles and stringing in your prints, especially on a fast machine like the Bambu A1, this S4 dryer is worth every penny!

This was a perfect filament dryer/dispencer for my 3D printer. Easy to use and well designed. Works well with my Bambu Lab X1 Carbon printer. Great product.

I purchased this filament dryer and was quite excited while awaiting its arrival. Upon arrival the two lids were broken off even though there was no damage to the package. The lids are held on by one pin on each side both of which were bent when the lids came off. With my pliers I was able to straighten them out and reinstalled the lids. Drying: This dryer does an awesome job at drying the filaments and was almost plug and play. Feeding: The major issue seems to be with printing from a filament that was in this dry box. I started having major under extrusion which made me investigate. I then realize that it is a nightmare to try and print from this box. It seemed that the bearings don't spin freely which caused the full spools to twist and falloff the rollers. The position of the ptfe holes in relation to the spool creates addition friction that my extruder just cannot overcome. Conclusion: If you are looking to just dry your filament, then this box will get that done no problem. However, of you want to print from the box, then this is not the box for you. I will return this item because one of the reasons why I purchased it was to be able to print directly from the dry box.

Four stars only because when you’re using a multi filament 3-D printer whenever it changes filament it back, feeds the filament and this has no way to wind the schools back up it kind of just create some slack inside the dryer. Other than this, it has caused Little to no clogging. And has really improved my filament and print quality. It has plenty of temperature ranges and humidity settings that you can customize to your liking.

Living in the southeast part of the USA means there is a lot of humidity around. This has really helped with the quality of the 3D prints I'm putting out. It is easy to use and very compatible with the printer's AMS allowing me to feed filament directly from this dryer into the AMS and to the nozzle without ever being exposed to the ambient air.

Werkt perfect en heeft ook nog een zuinige bewaarmodus. Kan 4 rollen tegelijk drogen / opbergen.

Does as it says , quick , efficient, what else is needed? Thankyou Sunlu !

Acheté car j'en avais marre des filaments avec de l'humidité, qui faisaient des bulles et des fils. Et bien je peux dire que c'est génial. Le boitier ne prends pas trop de place ' pour un appareil pouvant contenir 4 bobines en même temps) , il ne fait pas trop de bruit, et est vraiment efficace. J'adore, Je passe toutes mes bobines dedans avant d'imprimer maintenant, même les neuves sortie de sachet. Si on devait être chiant , je dirais que ça aurait été top si on avait pu avoir une cloison dans le boitier pour séparer en deux côté et pouvoir avoir deux réglages différents, mais je chipotte

3Dプリンタ初心者です。 プリント時、フィラメントの折れ、糸引きが発生するため、シリカゲル＋空気抜きパック保管していましたが、あまり改善されませんでした。ブラックフライデーで値下がりしていたため購入。プリント前、プリント中の乾燥で糸引きが少なくなりました。また、プリント後も乾燥状態が続いているので、そのまま空気抜きパックで低湿度で保管が可能です。マニュアルは英語ですが、操作も簡単です、youtubeでも説明がありますし。 自分は、フィラメント、温度、モードの選択＝選択確定となるようで、明確な確定操作がないので、少しもやもやしてます。

Verpackung & Design Die SUNLU Offizielle Filament-Trocknerbox S4 kommt ordentlich verpackt an und macht einen hochwertigen Eindruck. Die Box hat ein modernes, kompaktes Design, das sich gut in die Werkstatt oder das 3D-Druckumfeld einfügt. Die Verarbeitung ist robust, und die Tür lässt sich einfach öffnen und schließen. Funktionalität & Nutzung Die 4-Spulen-Trocknerbox ist ein echtes Highlight für 3D-Drucker-Enthusiasten. Ich benutze sie, um verschiedene Filamentarten wie PLA, TPU, PETG, ABS und Nylon zu trocknen, und sie funktioniert wirklich gut. Die Temperaturregulierung ist sehr präzise, und die schnelle Erwärmung sorgt dafür, dass das Filament in kurzer Zeit die optimale Trockenheit erreicht. Besonders praktisch ist die automatische Feuchtigkeitskontrolle, die dafür sorgt, dass das Filament stets in der besten Form bleibt. Leistung & Zuverlässigkeit In meiner Anwendung hat der Filament-Trockner die Feuchtigkeit zuverlässig entfernt und das Filament von Anfang an gut getrocknet. Egal ob PLA oder Nylon, das Filament bleibt auch bei längerer Lagerung optimal verarbeitbar. Fazit Der SUNLU Filament-Trockner S4 ist eine hervorragende Investition für 3D-Drucker, die regelmäßig mit verschiedenen Filamenten arbeiten. Die automatisierte Feuchtigkeitskontrolle, die schnelle Erwärmung und das präzise Temperaturmanagement sorgen dafür, dass das Filament stets in Top-Zustand bleibt und der Druckprozess nicht durch feuchtes Material gestört wird. Ein sehr praktisches und zuverlässiges Gerät, das sich definitiv lohnt.