• Italiano
  • Deutsch
  • Polski
  • Français

High temperature print head (HT90)

Relevant for:
Last updated 20 days ago
This article is also available in following languages: 

The Prusa Pro HT90 comes with a high-temperature print head that can be installed in the printer.

The default on the printer is the High-flow print head.

The print head can reach temperatures up to 500 ºC, covering most available materials, including PEI (Ultem). Additionally, the nozzle is abrasion-resistant.

The print head features a manual flap adjustment for the cooling air, allowing you to control the airflow from fully closed to fully open.

Before starting a print, the printer will display the recommended flap adjustment based on the loaded GCode.


The high-temperature print head has a 0.6mm Revo high-temperature, high-flow, abrasion-resistant nozzle. The nozzles are composed of copper with a hardened steel tip, and coated with chromium nitride.

The nozzle can be changed by screwing and unscrewing by hand, no tools should be used. For that, follow the instructions here: Nozzle replacement (HT90).

  • Recommended cleaning methods:
      • Cleaning filament
      • Warm pull
      • Cold pull
      • Brass brush for the outside
  • Non-recommended cleaning methods:
      • Needle
      • Steel wire brush
      • Brow torch

The hardness of the HT-Abrasive coating can cause small particles to detach from the bristles of the brass brush and create dusting over the nozzle. This will give the nozzle a brass-coloured sheen. However, the coating itself is still very much intact, and there will be no compromise to wear performance.

Was this article helpful?


Still have questions?

Still have questions?

If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.

Contact us