The Ultimaker Hot End Magnet for the UM3 Extended is a genuine OEM replacement for the magnet used in the print head's quick-swap print core system. On the Ultimaker 3 and related models, print cores are held in place by a magnetic mechanism that allows them to be inserted and removed without tools, enabling fast material changes. If a magnet is lost, weakened or damaged, the print core may not seat correctly, leading to poor electrical contact, thermal instability or the print core not being recognised by the printer.

Replacing the hot end magnet with a genuine Ultimaker OEM part restores the correct magnetic retention force and alignment, ensuring the print core locks securely into position every time. This is a small but important maintenance part for facilities that perform frequent print core swaps or have printers with worn magnetic seats.

Key features

• Genuine OEM Ultimaker hot end magnet, designed to the correct specification for the UM3 Extended quick-swap print core system.
• Provides the magnetic retention force that locks print cores in place, ensuring reliable electrical contact and thermal connection.
• Replacing a weakened or missing magnet restores secure, tool-free print core installation and prevents misalignment.
• Small but critical component that is essential for the correct functioning of the UM3 Extended's print core mechanism.
• Recommended spare for facilities performing frequent print core changes or operating UM3 Extended printers at high cycle rates.

Compatible with: Ultimaker 3 Extended (UM3 Extended)