The Upgrade K1/K1 Max/K1C Upgrade Hotend is an upgrade all-metal integrated design for swift installation and easy replacement, no longer worry about leaking. Compatible with Creality K1, K1 MAX, K1C 3D Printer.【Supports High-speed Printing up to 600mm/s】With a 30% increase in the overall hot melt section, including a 28.5mm length large hot melt section and 32mm³/s high flow, this kit enables printing speeds of up to 600mm/s.【Powerful 60W Ceramic Heating Ring】Featuring a robust 60W 360°C surround ceramic heating ring, this kit delivers enhanced heating efficiency, uniform heating, and rapid heat transfer, reaching 200°C in just 40 seconds.【Efficient Cooling Upgrade】Heat dissipation part featuring a split design for reduced heat transfer, the red copper heat sink enhances cooling efficiency. All-metal design support PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, PET-CF multiple filaments printing.