PrintDry Filament Dryer PRO4
En stock
Get more consistent, reliable 3D prints by keeping moisture-sensitive filament properly dried with the PrintDry Filament Dryer PRO4. Designed for both everyday and engineering-grade materials, the PRO4 reaches temperatures up to 85°C, adds real-time humidity monitoring, and allows you to print directly from the dryer.
Whether you're printing with Nylon, PETG, TPU, PVA, or other hygroscopic materials, the PRO4 helps reduce moisture-related issues such as poor surface finish, stringing, bubbling, inconsistent extrusion, and reduced mechanical performance.
Key Features
- Dry Up to 85°C: Six selectable temperature settings—35°C, 45°C, 55°C, 65°C, 75°C, and 85°C, provide the flexibility needed for everything from common thermoplastics to moisture-sensitive engineering materials.
- Real-Time Humidity Monitoring: See the relative humidity inside the drying chamber directly on the digital display, with a monitoring range from below 15% to 99% RH.
- 48-Hour Digital Timer: Set drying cycles from 1 to 48 hours with automatic shutoff.
- Dry While You Print: Feed filament directly from the PRO4 to your 3D printer through the integrated filament ports, helping keep material dry throughout long print jobs.
- Dual-Spool Capacity: The standard configuration accommodates and feeds up to two filament spools simultaneously.
- Double-Wall Chamber: The insulated chamber helps retain heat for efficient filament drying.
- Expandable Modular Design: Add optional chambers for additional spools or configure the system for large-format filament spools.
Specifications
- Dimensions: 340 mm (L) × 285 mm (W) × 350 mm (H)
- Temperature Settings: 35°C, 45°C, 55°C, 65°C, 75°C, 85°C
- Timer: 1–48 hours with automatic shutoff
- Humidity Display: <15% to 99% RH
- Standard Capacity: Up to two filament spools
- Maximum Large-Spool Capacity: Up to 5 kg / 11 lb with optional Large Spool Kit
- Maximum Large-Spool Diameter: 300 mm / 12 in
What's Included
The PrintDry Filament Dryer PRO4 includes:
- PRO4 Filament Dryer
- 2 metal shafts
- 4x big spool adapters
- 3x small spool adapters
Why Dry Your Filament?
Many 3D printing materials absorb moisture directly from the air. Once moisture enters the filament, it can cause popping or bubbling during extrusion, excessive stringing, rough surface finish, poor layer adhesion, and reduced part strength.
This is especially important when working with materials such as Nylon, carbon fiber- and glass fiber-filled Nylon, TPU, TPE, PVA, and PETG.
The PrintDry PRO4 lets you actively dry material before printing and continue feeding it directly from the heated chamber during the print, helping maintain consistent material condition from the beginning of the job to the end.
Large Spool Kit – Optional
Need to dry larger-format spools? The optional Large Spool Kit expands the PRO4 to accommodate filament spools weighing up to 5 kg / 11 lb with an outside diameter of up to 300 mm / 12 inches.
It's an ideal option for production environments and users running larger-volume filament spools.
Additional Chamber Kit – Optional
Expand your PRO4 with an Additional Chamber Kit to dry and feed two additional standard spools, increasing capacity from two to four 1 kg spools.
The PRO4's modular chamber design allows additional chambers to be stacked when greater capacity is required. PrintDry recommends using no more than two Additional Chamber Kits per dryer to maintain optimal temperature performance and stability.
Keep Your Filament Ready to Print
Moisture shouldn't be the reason a print fails.
The PrintDry Filament Dryer PRO4 provides high-temperature drying, real-time humidity feedback, direct-to-printer filament feeding, and expandable capacity in one simple system, making it a practical addition to professional additive manufacturing labs, production environments, and demanding desktop 3D printing workflows.





