Ceiling is not uniformity
Reaching a displayed maximum does not prove that a loaded spool is heated evenly throughout the chamber.
Is this the right dryer for you?
Engineering-material dryer and annealing chamber with a documented 35–110°C range, 0–99 hour timer, and capacity for two regular 1 kg or 2 kg spools or one 3 kg spool.
Choose this if: Your exact engineering filament requires a cycle above 85°C and within the E2's 35–110°C range.
The higher ceiling brings specified 100°C cycles onto the shortlist where 70°C and 85°C dryers fall short. Two regular spools can share a cycle; verify their dimensions and heat ratings.
Temperature-ceiling screen
Reaching a displayed maximum does not prove that a loaded spool is heated evenly throughout the chamber.
Do not expose a spool to more heat than its maker permits. Respooling may be required for higher-temperature drying.
Formulation-specific instructions override this family-level screen. Confirm the exact model and current regional product specification.