UltiMaker launches Factor 4 Plus industrial 3D printer with up to 2x speed for aerospace production

UltiMaker has unveiled the Factor 4 Plus, an industrial-grade fused filament fabrication (FFF) platform that delivers up to double the print speed of its predecessor, the Factor 4. The system is engineered for continuous production environments, targeting aerospace and other high-demand industrial verticals. Specific build volume and material compatibility details remain undisclosed, but the company positions the machine as a direct replacement for conventional manufacturing in low-to-mid volume serial production runs. The launch extends UltiMaker’s push beyond the desktop and prosumer segments into the factory floor, a transition the company began with the original Factor series.

This launch lands in a competitive landscape where polymer material extrusion is increasingly credible for end-use parts, not just prototyping. The Factor 4 Plus directly challenges offerings from Stratasys’ industrial FDM line (Fortus 900, F770) and the high-speed production capabilities of HP’s Multi Jet Fusion. UltiMaker’s value proposition hinges on combining open-material flexibility—a legacy from its MakerBot and UltiMaker heritage—with industrial-grade reliability and throughput. For aerospace, the key barrier remains qualification: polymer FFF parts must pass flame, smoke, and toxicity (FST) testing and meet OEM material specifications before they enter certified production. UltiMaker’s speed improvement matters only if it can maintain dimensional accuracy and repeatability across long print runs, which is the real frontier for polymer AM in aerospace.

From a practical standpoint, the Factor 4 Plus is a meaningful step forward for UltiMaker’s industrial ambitions, but the company must now deliver on material qualification partnerships and service infrastructure. Aerospace buyers should evaluate the machine’s actual throughput on qualified materials—not just headline speed numbers—and compare total cost per part against incumbent processes like CNC machining and injection molding. The real test will be whether UltiMaker can embed this platform into existing aerospace supply chains, not just sell it as a faster printer.