SUNLU launches the new FilaDryer S2, summary of the All3dp review article

SUNLU, a leading Chinese technology company for 3D printing materials, has launched the FilaDryer SP2, a modular filament dryer designed for scalability and efficiency. Its innovative system, featuring a base and multiple chambers, allows users to stack up to three drying chambers vertically on a heating base, expanding capacity without requiring extra space—ideal for multi-printer setups and print shops.

Key performance features include a 30% faster drying time compared to competitors, reducing the moisture of PETG filament from 0.6% to 0.2% in 4 hours. The SP2 supports a wide temperature range (35–70 °C) and is suitable for materials ranging from PLA to moisture-sensitive nylons. Each chamber features integrated high-precision humidity sensors for real-time monitoring and offers enough space for two 1 kg spools or large spools up to 250 mm in diameter.

A comparison table highlights its advantages over traditional dryers: modular scalability, native support for small spools, triple-layer safety, and 35% energy savings. The SP2 also proves effective in long-term printing scenarios, optimally drying saturated PLA at 55 °C in 4–6 hours.

Features Conventional Dryer FilaDryer SP2
Space-saving Fixed single-chamber unit Modular design
Capacity Expansion Requires an entirely new device Simply add more chambers
Humidity Monitoring None or external protective layer Integrated into every chamber
Safety System Single or dual-layer protection Triple-layer protection
Small Spool Size Self-assembly required Native support
Energy Efficiency Average Optimized with approx. 35% savings

Founded in 2013, SUNLU places great emphasis on innovation. The company holds more than 200 patents. With 140 production lines and 25 million products sold, the company continues to prioritize quality and technological advancement in 3D printing solutions.

For more information on the original article, click here:
SUNLU Releases the New FilaDryer SP2
Author: by SUNLU
Published: ALL3DP


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SUNLU FilaDryer SP2 Modular Filament Drying and Storage: A Summary of Test Reports by Max Funkner of 3DWithUs