Sunlu FilaDryer S4 Pro
Sunlu FilaDryer S4 Pro
Four spools, two independently-controlled zones — the S4 Pro is built for someone drying more than one material at a time, not just one spool before a print. Run PETG in one zone at a lower temperature while ABS dries in the other, without either compromising the other's settings.
Beyond drying, it does annealing — a longer, lower-temperature hold that relieves internal stress in printed parts (PLA and PETG especially) for better layer strength and less warping after the fact. And it manages itself: humidity monitoring starts the dry cycle automatically once the chamber crosses your set humidity and stops once it's back down.
Specs
| Spec | Value |
|---|---|
| Capacity | 4 spools, up to 1kg each |
| Zones | 2, independently controlled (temperature and time) |
| Max temperature | 85°C |
| Humidity control | Auto-starts at set RH (30–50%), stops at 25% RH |
| Functions | Drying and annealing |
| Compatible filaments | PLA, PETG, TPU, ABS, ASA, PA (Nylon), PC, and CF/GF-filled variants |
What's included
Dryer unit, power cable, spool holders for 4 rolls.
Fits
Not printer-specific. Suited to anyone drying multiple materials in parallel or running annealing passes on finished parts — for a single-spool, lower-cost dryer, see the Sovol SH02.
Warranty & support
Manufacturer warranty applies — contact us first if anything arrives faulty or stops working and we'll sort it with you.
Delivery & collection
Self-collection is free. Delivery is charged by size/weight band at checkout.