For one spool, compare the SUNLU S2 with Creality Space Pi by fit and controls; both are listed up to 70°C. Space Pi Plus holds two spools in one shared chamber. EIBOS Polyphemus reaches 80°C and accepts a larger spool with the required expansion parts. Follow the exact filament maker’s schedule.
Published specifications
| Model | Capacity and fit | Temperature and power | Published detail |
|---|---|---|---|
| Creality Space Pi | 1 spool | 45–70°C · 145 W listed power consumption | 360° PTC hot-air circulation |
| SUNLU FilaDryer S2 | 1 spool · product size 265 × 274 × 118 mm | Up to 70°C · 48 W maximum working power | Upper and lower heating plates with a circulating fan |
| Creality Space Pi Plus | Up to 2 spools · one shared chamber | 45–70°C · 160 W listed power consumption | Double PTC 360° hot-air heating |
| EIBOS Polyphemus | 2 spools up to Ø210 × 80 mm; one spool up to Ø210 × 170 mm; with expansion parts up to Ø250 × 170 mm | 30–80°C · 130 W | Rotation function; check the exact expansion package |
| eSUN eBOX Lite | Check the exact product manual | No numerical range stated on eSUN’s product page | eSUN says it is not suitable for heavily wet or high-temperature filaments |
| Sovol SH01 | 2 × 1 kg spools · inner size 9.29 × 6.49 × 9.13 in | 40–50°C | Confirm actual spool dimensions against the inner chamber |
Manufacturer references: Creality Space Pi comparison, SUNLU S2, SUNLU S4, EIBOS Polyphemus, eSUN eBOX Lite, and Sovol SH01.
Exact listings compared
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One spool · 45–70°C
Creality Space Pi single-spool dryer
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One spool · 70°C maximum
SUNLU FilaDryer S2, black
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Two spools · shared chamber
Creality Space Pi Plus, two-spool dryer
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Two spools · expansion option
EIBOS Polyphemus rotary dryer
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Reference · temperature maintenance
eSUN eBOX Lite
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Reference · 40–50°C
Sovol SH01, two-spool dryer
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Match the dryer to the spool schedule
A dryer’s maximum matters only when the exact filament calls for a temperature near it. For two product-specific examples, OVERTURE PETG lists 60°C for 5 hours and OVERTURE TPU lists 70°C for 8 hours. Those are examples for those product lines, not universal PETG or TPU settings. A 50°C maximum cannot meet a schedule that specifies more than 50°C.
Capacity and rotation
EIBOS lists a rotation function and spool clearances for the Polyphemus. The larger clearance requires the expansion parts. Follow the device manual for loading, drying, and print-through operation; a product’s highest setting is not a material schedule.
For four-spool capacity or separate temperature zones, compare the Creality Space Pi X4 and SUNLU S4. For larger reels, see the 3 kg drying and feeding setup. If PETG still strings after a credible drying cycle, use the PETG troubleshooting guide.
A single-spool dryer may be enough when you print one material at a time. If you need four positions, compare the four-spool dryer guide; if a spool needs more clearance than its selected dryer publishes, do not force it into the chamber.
Common questions
Which is better for a single printer: SUNLU S2 or Creality Space Pi?
Both are listed for one spool and up to 70°C. SUNLU lists 48 W maximum working power for the S2; Creality lists 145 W power consumption for Space Pi. Power figures alone do not establish drying speed, so choose by the exact spool schedule, controls, and fit.
Can the EIBOS Polyphemus fit a 3 kg spool?
EIBOS lists up to Ø250 × 170 mm when the expansion parts are installed. Check the actual spool dimensions and confirm the selected package includes those parts.
Why can a 50°C maximum be limiting for PETG or TPU?
Some exact product schedules specify more than 50°C. For example, OVERTURE lists 60°C for its PETG and 70°C for its TPU. Follow the schedule for your own spool; those values do not apply to every product in either material family.