SUNLU FilaDryer S4 Pro, Dual-Zone Filament Dryer with Independent Temperature & Time Control, 85℃ Max Temperature, Drying & Annealing 2-in-1, Fits 4 × 1kg Filament Spools

[Smarter Drying, Better Printing] The SUNLU FilaDryer S4 Pro is designed to help makers and professionals keep filaments dry, stable, and ready to print. With dual-zone independent control, automatic humidity management, and built-in annealing mode, it delivers a more efficient and flexible filament drying experience.

[Dual-Zone Control, More Flexibility] The SUNLU FilaDryer S4 Pro runs two different drying settings at the same time. Dry PLA / PETG in one chamber while conditioning PA / PC / PP in the other, or set separate programs for different materials to save time and boost productivity.

[Faster Heating, Faster Results] Reach 85°C / 185°F more quickly with upgraded heating and airflow circulation. This helps remove moisture more effectively, reduce stringing, and improve layer adhesion for smoother print performance.

[Built for Advanced Materials] Add professional annealing support to your 3D printing workflow. The built-in annealing mode helps improve strength, dimensional stability, and heat resistance, making it ideal for PA, PC, PP, and other engineering filaments that the annealing temperature at/within 85°C.

[Smart Humidity Management] Set your target RH range from 30% to 50% and let the dryer do the rest. The system automatically starts when internal humidity reaches the set level and stops at 25% RH, helping keep filaments protected and ready to print.

[One Dryer, Multiple Adaptations] Compatible with PLA, PETG, TPU, ABS, ASA, PA, PC, Nylon, Carbon Fiber, Glass Fiber, and more. A large-capacity design for 4 × 1kg spools makes it a reliable choice for home studios, workshops, and 3D printing farms.

Specifications
Product Name: SUNLU FilaDryer S4 Pro *1
Model: S4Pro
Color: Black
Net Weight: 4.7 kg
Gross Weight: 5.4 kg
Package Dimensions: 516*278*350mm
Product Size: 458 × 218 × 310 mm (L × W × H)
Maximum Capacity: 220 × 210 × 211 mm × 2 (L × W × H)
Power Input: AC 110V / 60Hz or AC 220V / 50Hz
Rated Power: 380W

Packaging List

• Power Cable *1
• User Manual *1
• 1m PTFE Tube *2
• Accessory Kit *1
• Stainless Steel Shaft *8
• Bearings *16