FilaDryer E2
SUNLU FilaDryer E2 is a drying box specifically designed for engineering consumables, featuring a maximum temperature of 110°C, dual functions of drying and annealing, and an extra-large capacity.

Key Features:
1. High-Efficiency Drying
Rapid heating up to 70°C for standard filaments; supports 90°C for specialty filaments like PA/PC, significantly reducing drying time.
2. Functional Annealing
Provides 80–90°C annealing for 2–3 hours, optimizing material properties of functional filament prints.
3. Spacious Chamber
Holds 2 rolls of 1kg filament or 1 roll of 2kg filament, accommodating multi-roll or large-spool drying and reducing material replacement frequency.
4. Insulated Design
Double-chamber construction minimizes heat loss and improves energy efficiency.
5. High Compatibility
Supports engineering filaments and filament diameters 1.75 mm, 2.85 mm.
6. Enhanced Safety
PTC heater with rolling fan, dual temperature protection switches, and smart software control; exterior surface ≤ 60°C at 110°C operation for safe usage.
| Item Name | E2 Filament Dryer Box |
|---|---|
| Model | E2 |
| Net Weight | 7.6 KG |
| Dimensions | 400 × 220 × 307 mm |
| Color | Black |
| Max Capacity | 372 × 192 × 186 mm |
| Power Input | AC 110V/60Hz or 220V/50Hz (varies by region) |
| Rated Power | 325W |
FilaDryer S4
SUNLU FilaDryer S4 is the world's first large-capacity filament dryer box, featuring extra-large space, high efficiency, safety, and uniform temperature distribution.

Key Features:
1. Large Capacity
Internal dimensions: 450 × 210 × 211 mm, capable of drying up to 4 rolls of 1kg filament simultaneously, meeting multi-color printing and multi-printer usage requirements.
2. Rapid Heating & Efficient Drying
Equipped with a 350W PTC heater, heats up to 70°C for fast drying of specialty filaments such as PA and PC, improving workflow efficiency.
3. Triple Safety Protection
PTC thermistor, mechanical temperature switch, and software monitoring provide three levels of protection. Real-time temperature monitoring triggers alerts in case of anomalies, ensuring safe operation.
4. Temperature Uniformity
Dual side circulation fans combined with a bottom heating fan maintain chamber temperature within ±3°C, ensuring even drying for every filament roll.
5. Intelligent Humidity Control
Automatically adjusts chamber humidity. Starts when humidity reaches the set range (30%-50%) and stops when it drops to 25%, preventing filaments from reabsorbing moisture.
6. High Compatibility
Compatible with all printer models, supports simultaneous filament feeding for up to 4 printers, and works with filament diameters 1.75 mm, 2.85 mm, and 3.0 mm.
| Item Name | S4 Filament Dryer Box |
|---|---|
| Model | S4 |
| Net Weight | 4.8 KG |
| Dimensions | 458 × 218 × 312 mm |
| Color | Black, White, Grey |
| Max Capacity | 450 × 210 × 211 mm |
| Power Input | AC 110V/60Hz or 220V/50Hz (varies by region) |
| Rated Power | 300W |
FilaDryer SP2
SUNLU SP2 is a split-type consumable drying box with dual functions of "drying + storage".

Key Features:
1. Modular Design
Heater platform and chamber are separate; multiple chambers can be stacked freely, optimizing space utilization.
2. Sealed Insulation
Silicone seals on the lid and feet ensure excellent heat retention.
3. Spacious Chamber
Holds 2 rolls of 1kg or 1 roll of 2–3kg filament; supports spool diameters up to 250mm and widths up to 153mm.
4. High Compatibility
Compatible with filaments 0.25–3kg, diameters 1.75mm & 2.85mm, and both paper and standard spools; horizontal axis mounting allows secure printing.
5. User-Friendly Design
Handles and recessed base for easy transport; built-in humidity meter; dual-side three-hole stoppers adapt to various filament sizes.
6. Rapid Heating
Heats to 70°C in 15 minutes, efficiently drying most common filaments.
7. Triple Safety Protection
PTC heater with metal roller fan, dual temperature protection switches, and smart software control ensure safe and reliable operation.
| Item Name | SP2 Filament Dryer Box |
|---|---|
| Model | SP2 |
| Net Weight | 3.6 KG |
| Dimensions | 278 × 208 × 396 mm |
| Color | Black |
| Max Capacity | 265 × 193 × 274 mm |
| Power Input | AC 110V/60Hz or 220V/50Hz (varies by region) |
| Rated Power | 250W |
AMS Heater
SUNLU AMS Heater is a heating device that enables simultaneous drying and printing, and is fully compatible with the first-generation AMS.

Key Features:
1. Drying & Printing Simultaneously
Supports drying filaments while printing, improving workflow efficiency.
2. Efficient and Even Heating
Heats to 70°C in 20 minutes, quickly drying most filaments; dual airflow design prevents localized overheating and reduces deformation risk.
3. High Compatibility
Compatible with all AMS first-generation features, including sealed storage and multi-color printing; flat top design allows stacking multiple units to save space.
4. Rapid Upgrade
Complete upgrade in 2 minutes: loosen → remove → tighten.
5. Intelligent Humidity Control
Automatically maintains chamber humidity: activates at 25%-50%, stops at 20%, preventing filament from reabsorbing moisture.
6. Triple Safety Protection
PTC heater with metal roller fan, dual temperature protection switches, and smart software control ensure safe and reliable operation.
| Item Name | AMS Heater |
|---|---|
| Model | AMS Heater |
| Net Weight | 1.7 KG |
| Dimensions | 363 × 278 × 131 mm |
| Color | Black |
| Power Input | AC 110V/60Hz or 220V/50Hz (varies by region) |
| Rated Power | 220W |
FilaDryer S2
SUNLU Official FilaDryer S2, maximum temperature 70°C, built-in circulating fan, designed as a drying and storage box for 3D printer filaments. 
Key Features:
1. 360° Enclosed Heating
Dual upper and lower heating plates with a bottom fan provide uniform all-around heat, improving drying efficiency.
2. Large 4.6-inch LCD Display
Shows temperature, time, humidity, filament type, and countdown, providing clear real-time information.
3. Intelligent Temperature Control
Precisely monitors chamber temperature to ensure safe and stable operation, preventing overheating.
4. Humidity Monitoring
Tracks filament moisture in real time, ensuring optimal material condition for printing.
5. High-Temperature Capability
Supports heating up to 70°C, suitable for specialty filaments such as PA and PC.
6. One-Touch Smart Operation
Built-in drying programs for various filament types, simplifying operation and saving time.
7. LED Status Indicator
Circular LED ring clearly displays the operating status at a glance.
| Compatible Filament Item Name | 3D Printing Filament Dryer Box S2 |
|---|---|
| Net Weight | 1109 g |
| Dimensions | 265(L)×274(W)×118(H) mm |
| Color | Black, White, Grey |
| Max Capacity | φ210×85(H) mm |
| Optimal Operating Ambient Temperature | 20℃ ~ 35℃ |
| Relative Humidity | ≤ 90% |
| Temperature Setting Range | 35℃ ~ 70℃ |
| Power Adapter Input | AC 100V~240V, 50/60Hz |
| Power Adapter Output | DC 24V±1.2V, 2A |
| Standby Power | 0.05W |
| Max Working Current | 1.8A |
| Max Working Power | 48W |
| Compatible Filament Diameter | 1.75mm / 2.85mm / 3.01mm |
FilaDryer S1 Plus
SUNLU Official FilaDryer S1 Plus with built-in circulating fan, designed as a drying and storage box for 3D printer filaments.

Key Features:
1. Upgraded Built-in Fan
Efficient hot-air circulation ensures even heat distribution, faster moisture removal, and improved drying efficiency.
2. Smart LCD Display
Equipped with a 2-inch LCD screen displaying temperature, time, and humidity at a glance.
3. Dual Temperature Sensors
Simultaneous monitoring of chamber and heater temperatures for precise control and enhanced safety.
4. 360° Enclosed Heating Design
Wrap-around heating delivers uniform drying, stable performance, and improved heat retention.
5. Adjustable Temperature Control
Supports adjustable heating from 35°C to 55°C to meet different material requirements.
| Item Name | 3D Printing Filament Dryer Box S1 Plus |
|---|---|
| Net Weight | 960g |
| Dimensions | 271(L)×100(W)×237(H) mm |
| Color | Black, White, Grey |
| Max Capacity | φ210×89(H) mm |
| Optimal Operating Ambient Temperature | 20℃ ~ 35℃ |
| Relative Humidity | ≤ 90% |
| Temperature Setting Range | 35℃ ~ 55℃ |
| Power Adapter Input | AC 100V~240V, 50/60Hz |
| Power Adapter Output | DC 24V±1.2V, 2A |
| Standby Power | 0.05W |
| Max Working Current | 1.8A |
| Max Working Power | 48W |
| Compatible Filament Diameter | 1.75mm / 2.85mm / 3.00mm |
