4 Pcs Hotend Kit with Silicone Cover 0.25mm 0.4mm 0.6mm 0.8mm Quick Swap Nozzle 3D Printer Assembled Extruder Kits for FLASHFORGE AD5X  (4 Pcs)

Compatibility: This hot-end upgrade is exclusively for FLASHFORGE AD5X FDM 3D printers manufactured after 31 May 2025. It is NOT compatible with earlier AD5X units or any other printer models—please verify your printer version before ordering. Tool-Free Installation: Compact, modular, all-metal assembly: upgraded copper heat-block, heat-break and 0.4 mm removable nozzle arrive pre-built. No wiring, crimping or soldering—simply bolt the complete hot end onto your AD5X and resume printing. Complete Upgrade Kit:Two fully-assembled AD5X hot-end units: precision nozzle, bi-metal throat, high-efficiency copper heat-block, plus 2 extra silicone cover and 2 nozzle brushes for cleaner prints and longer maintenance intervals. Superior Cooling = Higher Speed: The copper block dissipates heat rapidly, preventing heat-creep during high-flow, high-speed runs. Layers bond reliably even at elevated print speeds, letting you shorten cycle times without sacrificing quality. Speed-Optimized, Leak-Proof: One-piece, all-metal nozzle/throat eliminates the threaded joint found in traditional two-piece hot ends—no more leaks from seal degradation. Uniform heating and smooth filament flow support sustained high-speed printing while keeping your prints mess-free.