Chinese language 3D printing know-how agency SUNLU has launched a brand new filament drying system designed to supply extra flexibility for 3D printing customers managing a number of spools.
Known as the FilaDryer SP2, the unit separates its heating base from the drying chambers, permitting as much as three chambers to be stacked vertically. This setup is geared toward customers working a number of printers without delay, the place house is proscribed and filament drying typically turns into a bottleneck.
Based in 2013 in Zhuhai, China, SUNLU makes a speciality of 3D printing supplies and {hardware}, with a product vary that features filaments, resins, and equipment. Having bought greater than 25 million items, the corporate runs over 140 manufacturing strains and holds over 200 granted IP rights associated to supplies and gear design.


Scalable design with environment friendly drying
One of many key objectives behind the SP2 is to enhance drying effectivity. In repeated exams with PETG, the system introduced moisture ranges down from 0.6% to 0.2% in simply 4 hours. That’s round 30% sooner than different dryers in the identical class. The adjustable temperature vary, which runs from 35°C to 70°C, makes it appropriate for widespread supplies like PLA in addition to moisture-sensitive filaments reminiscent of nylon.
Every chamber features a built-in humidity sensor for real-time monitoring and presents sufficient house to carry both two 1kg spools, a single 2–3kg spool, or spools measuring as much as 250 mm in diameter and 153 mm in width. The beneficiant capability is very helpful throughout lengthy print jobs, the place smaller dryers typically fall quick. In a single instance, saturated PLA reached optimum moisture ranges inside 4 to 6 hours at 55°C, demonstrating the system’s effectiveness for prolonged use circumstances.
Security options are constructed into the SP2’s design. It makes use of a ceramic PTC heater mixed with a sensible fan to make sure warmth is evenly distributed. A mechanical cutoff swap prompts if temperatures spike unexpectedly, whereas a PID-controlled microprocessor retains the system secure inside a one-degree vary.
The gadget has handed 72-hour steady operation exams and was additionally run by means of high-stress eventualities to verify reliability. Further silicone gaskets at connection factors assist preserve moisture out and keep constant drying circumstances.
In comparison with standard dryers, that are sometimes mounted in design and restricted to a single chamber, the SP2 presents a extra scalable answer. As an alternative of buying a completely new unit, customers can develop capability by including extra chambers. It additionally accommodates smaller spools with out the necessity for adapters or modifications.
Moreover, inner testing signifies as much as 35% decrease power consumption than comparable merchandise. In early use, the system has additionally been famous for its quiet operation at 42dB, secure stacking, and constant temperature management throughout prolonged classes.


Technical specs and pricing
For pricing particulars and extra info, readers can go to Sunlu’s web site.
Product Identify | SUNLU Filament Dryer SP2 / Storage Field Set |
Product Dimension | 278mm × 208mm × 396mm (L x W x H) |
Inner Dimensions | 265mm × 193mm × 274mm (L x W x H) |
Bundle Measurement | 337mm × 263mm × 380mm (L x W x H) |
N.W. | FilaDryer SP2 Set: 3.6KG, Storage Field Set: 5.0KG |
G.W. | FilaDryer SP2 Set: 4.1KG, Storage Field Set: 5.5KG |
Working Surroundings | Temperature: 10°C-35°C, Relative Humidity: ≤95% |
Suitable Filament Diameters | Φ1.75mm/Φ2.85mm |
Most Spool Measurement | Φ250mm × 153mm (1kg × 2 or 2kg × 1 or 3kg × 1) |
Work Temperature Vary | 35°C-70°C (PLA, PLA+, PETG, ABS, TPU, PVA, PVB, ASA, PA/PC and many others.) |
Humidity Show Vary | Check with the Hygrometer: 10%-90% |
Time Setting Vary | 0-99h |
Energy Enter Specs(Make sure the voltage matches your native provide earlier than use) | AC 110V 60Hz 0r AC 220V 50Hz |
Most Working Present | 2.2A@230V, 4.2A@120V |
Most Working Energy | 250w |
Stand by Energy | ≤1W |
Bundle Contents: FilaDryer SP2 Set | Storage Field *1, Heating Base *1, Hygrometer *1, Desiccant *1, Desiccant Field *1, Energy Cable *1, Spool Curler *1, Air lock *2, PTFE Tube 8cm *2, PTFE Tube 1m *2, Consumer Guide *1 |
Storage Field Set | Storage Field *1, PLA+2.0 Black *2, Hygrometer *1, Desiccant *1, Desiccant Field *1, Spool Curler *1, Air lock *2, PTFE Tube 8cm *2, PTFE Tube 1m *2, Consumer Guide *1 |
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Featured picture exhibits the Sunlu FilaDryer SP2. Picture through Sunlu.