The UltiMaker Door Lock Assembly is an OEM spare part for the UltiMaker F Series (Factor 4) industrial 3D printer. It replaces the complete door locking mechanism on the build chamber, restoring a secure, repeatable closure that keeps the chamber sealed throughout every print job.

The Factor 4 build chamber relies on a properly functioning door lock to maintain the elevated internal temperature needed for printing with high-performance engineering materials. A worn or broken lock assembly causes the door to open unintentionally or fail to seal correctly, which disrupts the thermal environment and can result in warped, delaminated or otherwise failed prints. Replacing the door lock with a genuine UltiMaker assembly ensures the chamber stays sealed under the thermal and mechanical stresses of continuous industrial operation.

Key features

• OEM door lock assembly designed for a precise, secure fit on the Factor 4 build chamber door.
• Keeps the build chamber sealed during printing, maintaining the elevated temperature required for engineering-grade materials.
• Prevents accidental door opening during active print jobs, protecting both print quality and operator safety.
• Restores a reliable, repeatable locking action after wear or mechanical failure of the original assembly.
• Genuine UltiMaker part ensures correct mechanical integration with the chamber door and frame without modification.

Compatible with: UltiMaker Factor 4 (F Series)