The Kingroon Filament Dryer Box 2025, at $21.00, offers great value for beginners, ensuring dry filament for flawless 3D prints. Though slower than premium models, its silent operation and compatibility make it ideal for budget-conscious hobbyists.
We’ve tested countless filament dryers in our previous articles, from high-end models to budget picks, and wet filament remains a universal headache for 3D printing enthusiasts. Stringy prints, clogged nozzles, and brittle layers can ruin projects like custom decor vases . At just $21.00, the Kingroon Filament Dryer Box 2025 promises an affordable fix. But can this budget contender deliver for your PLA, PETG, or TPU prints? Our detailed review explores its features, performance, and quirks, with comparisons to top competitors, to help you decide if it’s the right choice in May 2025.
Why Traditional Drying Methods Fail
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DIY drying methods often waste filament and time:
- Ovens: Temperature swings (10-20°C) melt PLA, ruining $20-$40 spools.
- Food Dehydrators: Require mods, lack spool rotation, and take 20+ hours with uneven results.
- Desiccant Packs: Prevent moisture but can’t remove it from wet filament.
- Hacks (e.g., Hairdryers, Rice): Cause warping, fire hazards, or dust clogs.
Why You Need a Filament Dryer for 3D Printing
A filament dryer is essential for 3D printing because moisture in filament causes stringing, clogs, and weak prints, ruining projects like decor pieces. Drying ensures consistent, high-quality results, especially in humid environments, saving time and filament costs.
Kingroon Filament Dryer Box 2025
Detailed Specs
| Specification | Details |
|---|---|
| Brand | POJECITY (Kingroon) |
| Price | $21.00 |
| Material | Plastic |
| Weight | 1 kg |
| Dimensions | Not specified (fits 0.5/1KG spools) |
| Temperature Range | 40-50°C |
| Timer Range | 6-12 hours |
| Power Consumption | ~100W |
| Filament Compatibility | 1.75mm/2.85mm (PLA, PETG, TPU, ABS) |
| Extruder Support | Direct and Bowden |
| UPC | 742686226953 |
Design and Build Quality
The Kingroon features a transparent plastic body for easy filament monitoring. At 1kg, it’s lightweight and portable but feels less robust than pricier models like the Polymaker PolyDryer. The six-bayonet, double-ring seal ensures airtight storage, and kraft paper packaging protects against moisture during shipping. Our experiences note durability for regular use, but the dim hygrometer and flimsy PTFE fittings require careful handling to avoid jams.
Air Circulation Fan
The Kingroon lacks an air circulation fan, relying on passive heating and desiccants. This results in slower drying (12-16 hours for wet filament) compared to fan-equipped models like the Sovol SH01 (6-8 hours). While silent, the absence of airflow can cause uneven drying in cold rooms (<16°C).
Spool Compatibility
The Kingroon supports 0.5KG and 1KG spools of 1.75mm/2.85mm filaments (PLA, PETG, TPU, ABS) with standard widths (<70mm). The high-positioned spool holder may not fit larger or non-standard spools. Our experiences confirm compatibility with common filaments but limitations with oversized rolls.
Dual Filament Ports
Two PTFE-lined ports (top for Bowden, side for Direct Extruders) enable flexible printing setups, allowing direct printing from the box for projects like 3D-printed plant pots . Short tubes and loose fittings can cause jams, but a free fix is available on Printables (“Kingroon Dry Box Top Feed Guide”).
Power Consumption
Consuming ~100W, the Kingroon is energy-efficient compared to the Sovol SH01 (~200W) or Sunlu FilaDryer S4 (~300W). This reduces costs for long-term use, though slower drying increases runtime.
Noise Levels
With no fan, the Kingroon operates silently, ideal for home or office settings. Competitors like the Creality Filament Dryer Box 2.0 (low noise) or Sunlu FilaDryer S4 (moderate) produce fan-related sound, giving the Kingroon an edge in quiet environments.
Drying Capacity
The Kingroon holds one spool (0.5/1KG), suitable for small-scale printing. It lags behind the Sunlu FilaDryer S4 (four spools) or Sovol SH01 (two spools) for high-volume needs. Our experiences show it maintains 10-15% humidity with desiccants, effective for storage but slower for active drying.
Pros and Cons
Pros
- ✅ Affordable at $21.00, unmatched value.
- ✅ Broad compatibility with 1.75mm/2.85mm filaments and extruders.
- ✅ Silent operation, perfect for quiet spaces.
- ✅ Airtight seal with free desiccant packs.
- ✅ Lightweight, transparent design for monitoring.
Cons
- ❌ No fan, leading to slow drying (12-16 hours).
- ❌ Poor hygrometer readability.
- ❌ Loose PTFE fittings cause jams.
- ❌ Single-spool capacity limits high-volume printing.
Comparison Table
| Filament Dryers |  |  |  |  |  |
|---|---|---|---|---|---|
| Price | $21.00 | $44.99 | $99.99 | $69.99 | $44.99 |
| Capacity | 1 spool (0.5/1KG) | 2 spools (<70mm) | 1 spool (<70mm) | 2 spools (<70mm) | 4 spools (<70mm) |
| Temperature Range | 40-50°C | 40-50°C | 40-60°C | 35-70°C | 35-70°C |
| Timer Range | 6-12 hours | 6-12 hours | 6-24 hours | 1-24 hours | 1-24 hours |
| Fan | No | Yes | No | Yes | Yes |
| Humidity Monitoring | Yes | Yes | Yes | Yes | Yes |
| Power Consumption | ~100W | ~200W | ~150W | ~250W | ~300W |
| Noise Level | Silent | Whisper quiet | Silent | Low | Moderate |
| Best For | Budget storage | Budget hobbyists | Premium drying | Versatile drying | High-volume printing |
| Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now |
Rating Table
Setting Up
- Unbox: Remove from kraft paper packaging, verify two desiccant packs.
- Place Spool: Insert a 0.5/1KG spool, ensuring it fits (<70mm width).
- Thread Filament: Feed through the top (Bowden) or side (Direct) PTFE port.
- Set Parameters: Use the LCD to set 40-50°C and 6-12 hours. Add desiccants.
- Monitor: Aim for <15% humidity. Secure tubes to avoid jams.
- Use: Store filament or print directly from the box.
Setup takes 5-10 minutes; tube fittings may need taping or a Printables fix.
Tips for Maximizing the Kingroon Filament Dryer Box
- Extra Desiccants: Add Dry & Dry Blue Indicating Silica Gel Beads ($5-$10) for faster drying.
- Secure Tubes: Use tape or the Printables guide to prevent jams.
- Warm Environment: Place in a room above 16°C for optimal temperature using Home Hygrometer Thermometer.
- Check Filament: Monitor spool condition to avoid over-drying TPU.
- Combine Dryers: Use as storage with a fan-equipped model for multi-spool workflows.
Frequently Asked Questions
How long does the Kingroon Filament Dryer Box take to dry filament?
It takes 12-16 hours to dry heavily wet filament due to its passive drying with desiccants and no fan. Adding extra silica gel packs can slightly speed up the process.
Can the Kingroon handle multiple spools at once?
No, it’s designed for one spool (0.5/1KG) at a time. For multi-spool drying, consider the Sunlu FilaDryer S4 (up to four spools) or Sovol SH01 (two spools).
Is the Kingroon suitable for all 3D printer types?
Yes, it supports both Direct and Bowden Extruders with dual PTFE-lined ports, compatible with 1.75mm/2.85mm filaments (PLA, PETG, TPU, ABS), making it versatile for most 3D printers.
Why Choose the Kingroon Filament Dryer Box?
For just $21.00, the Kingroon Filament Dryer Box 2025 delivers unbeatable value, keeping your filament dry and your prints flawless in humid conditions. Its silent operation and versatile compatibility make it a top pick for beginners or hobbyists tackling small-scale projects like custom decor. While its slow drying and single-spool capacity can’t match premium models like the Sovol SH01 or Sunlu FilaDryer S4, it’s a smart choice as a budget-friendly storage solution or secondary unit. Ready to banish moisture from your 3D printing? Grab the Kingroon today and elevate your prints!
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