Phaetus Dragon UHF

Phaetus Dragon UHF is the ultra-high-flow Dragon hotend for fast 1.75 mm filament printing. The long melt zone uses a lengthened plated-copper heat block and extension nut, with the Dragon support-screw structure for one-handed nozzle changes.

Why choose the Dragon UHF

• Ultra-high-flow melt path: Phaetus' UHF design lengthens the heated filament path for high-speed and high-temperature printing.
• All-metal construction: built for engineering materials including PLA, ABS, PETG, TPU, PP, PC, PA, PEEK, PEI, and filled composites.
• 0.25 mm thin-wall titanium-alloy heatbreak: reduces heat creep while keeping the heatbreak wear-resistant.
• One-handed nozzle change: titanium-alloy support screws brace the heat block so the nozzle can be changed without twisting the hotend stack.

Specifications

• Product: Phaetus Dragon UHF Hotend
• Filament: 1.75 mm
• Size: 81.6 × 24.5 × 22.3 mm
• Net weight: 61.2 g
• Colors: black or blue
• Heatbreak: titanium alloy, 0.25 mm wall thickness
• Heat block: lengthened plated copper alloy
• Hot-tightening: Phaetus specifies 285°C and about 2.5 Nm for the final nozzle seal.

Fit and use

• Use when volumetric flow is the limit on a high-speed printer or Voron-style toolhead build.
• Compatible with V6 hotend-interface builds and common Titan/BMG-style extruder paths where the printed toolhead supports the Dragon UHF body length.
• Pair with a Phaetus Dragon High Temperature Sock for a fresh heat-block cover.

What it is not

• Not the standard Dragon HF/SF length; UHF toolheads may need UHF-specific printed parts or spacing.
• Not a heater, thermistor, or complete toolhead wiring kit; check your build requirements before installation.
• Hot-tighten the nozzle after assembly. Skipping that step can cause molten filament leaks.