SUNLU Filament Dryer S4 Pro – Filament Drying Box for 3D Printing

SUNLU FilaDryer S4 Pro – Professional 3D filament dryer with dual-zone technology

The SUNLU FilaDryer S4 Pro is the ideal solution for demanding 3D printing applications. With two independently controlled drying chambers, it allows for the simultaneous drying of different filament types at individually adjustable temperatures. The integrated thermal insulation effectively separates the two chambers, ensuring each zone operates independently – perfect for the parallel use of various materials.

Each chamber accommodates two 1 kg filament spools, allowing for the simultaneous drying of up to four spools. Thanks to the powerful 380 W PTC heating system with optimized air circulation, the dryer reaches temperatures of up to 85 °C and ensures even moisture removal.

The easy-to-read display allows for convenient control of both chambers via a central user interface. In addition to the classic drying mode, an annealing mode for engineering plastics and an intelligent humidity mode are available. The integrated humidity sensor continuously monitors the humidity and automatically adjusts the heating to maintain the set value.

Multiple safety features ensure safe operation. These include temperature monitoring, overheating protection, fan monitoring, alarm functions, and automatic shutdown after the set drying time has elapsed.

The FilaDryer S4 Pro is suitable for almost all common 3D printing filaments such as PLA, PETG, TPU, ABS, PA (Nylon), PC, ASA and many other materials in 1.75 mm and 2.85 mm.

Highlights

* Dual-zone system with independently adjustable temperature

* Temperature range: 45–85 °C

* Two separate chambers for different purposes

Filaments

* Space for up to 4 x 1 kg filament spools

* Intelligent humidity control (adjustable from 30–50% RH)

* Three operating modes: drying, annealing and

Humidity control

* Powerful 380W PTC heater with efficient

air circulation

* Temperature, fan and overheating protection

* Timer from 1 to 99 hours

* Compatible with 1.75 mm and 2.85 mm filaments

Technical data

* Model: SUNLU FilaDryer S4 Pro

* Dimensions: 458 × 218 × 310 mm

* Internal dimensions per chamber: 220 × 210 × 211 mm

* Max. temperature: 85 °C

* Temperature range: 45–85 °C

* Humidity display: 10–90% RH

* Power: 380 W

* Weight: 4.7 kg

* Power supply: 110 V / 60 Hz or 220 V / 50 Hz

Scope of delivery

* 1 × SUNLU FilaDryer S4 Pro

* 1 × power cable

* 2 × PTFE hose (1 m)

* 2 × PTFE tubing (8 cm)

* 1 × Instruction manual