Sovol SH02 Dual-Spool Filament Dryer Box with PTC Heat

Keep your 3D printer filament dry, stable and ready to print

with the Sovol SH02 Filament Dryer. Designed as a sealed storage box and spool holder in one, it provides a controlled, low‑moisture environment so your filament feeds smoothly and consistently from the first layer to the last. With dual‑spool capacity, fast PTC heating and optimized air circulation, it supports reliable results across a wide range of materials and printer setups.

The SH02 combines a robust sealed enclosure with a 150W PTC heating system and built‑in circulation fan. It can be set between 40-70°C and reaches 50°C in around 7 minutes and 70°C in around 25 minutes, delivering uniform 360° heating around your spools. This helps remove absorbed moisture from hygroscopic filaments and keeps them dry during long prints. Two filament outlet ports accept PTFE tubes and are positioned to suit different extruder locations, allowing you to run up to two printers from the same dryer while keeping your workspace organized.

The upgraded sealing design uses thicker sealing materials for improved isolation from ambient humidity and dust, even when the unit is powered off. The interior can hold two 1 kg spools at once, and there is space to add multiple desiccant packs (not included) to further enhance moisture control. A transparent body makes it easy to monitor remaining filament and spool movement at a glance. The integrated control panel offers one‑touch presets for nine common filament types: PLA, TPU, PETG, ABS, ASA, PVA, PC, PA and PP, each with preconfigured time and temperature profiles to simplify setup.

For safety and long‑term reliability, the SH02 includes over‑temperature protection: when the PTC module exceeds approximately 130°C, heating is automatically cut off and resumes only after cooling below about 90°C. If the fan stops during operation, an audible alarm prompts you to replace it, helping protect the heating module and maintain consistent drying performance. With its compact footprint and multi‑spool capacity, the SH02 integrates easily into both home and professional 3D printing environments.

Why It's a Smart Choice

• Supports two 1 kg spools and two printers simultaneously, reducing downtime and saving workspace.
• Fast 150W PTC heater with 360° air circulation delivers consistent, controllable drying from 40-70°C.
• Enhanced sealing and optional desiccant use help protect filament from ambient humidity and dust, even when idle.
• One‑touch presets for nine filament types simplify setup and promote repeatable drying conditions.
• Integrated safety features and fan alarm support stable, long‑term operation.

FAQ

Q: Which filament types are supported?
A: The SH02 includes presets for PLA, TPU, PETG, ABS, ASA, PVA, PC, PA and PP. It can also be used with other compatible 3D printing filaments by manually setting time and temperature within the 40-70°C range.

Q: Can I print directly from the dryer box?
A: Yes. The SH02 has two filament outlet ports designed to route filament through PTFE tubing directly to your printer's extruder, allowing you to dry and print at the same time.

Q: Does it still protect filament when turned off?
A: Yes. The upgraded sealing structure and thicker sealing materials help keep out ambient moisture and dust even when the power is off. For best results, add desiccant packs inside the box.

Q: How many spools fit inside at once?
A: The interior is designed to accommodate two standard 1 kg spools simultaneously, allowing you to dry and store multiple materials or feed two printers at the same time.

Q: What safety features are included?
A: The SH02 has over‑temperature protection that cuts off heating above a specified threshold and resumes only after cooling. It also includes a fan‑failure alarm to help prevent overheating of the PTC module.