
MJF
Multi Jet Fusion
Multi Jet Fusion is a powder-based technology but does not require lasers. The powder bed is heated evenly from the start. A thermally conductive fluid is injected when particles need to be selectively melted, and a thermally inhibiting fluid is injected around the contours to provide sharp edges and good surface quality. As lamps are moved across the surface of the powder bed, the injected material dims the heat and promotes even distribution.
The MJF uses infrared lamps as the energy source, which continuously illuminate the printing surface. The powder particles to be fused are wetted with a heat-conducting liquid via the print head. The particles absorb the heat from the lamps and fuse with each other and with the layer underneath. In order to prevent the powder particles from fusing together beyond the intended area, a heat-inhibiting liquid is simultaneously applied around the contour of the component. This gives the 3D object a uniform and smooth surface.

Multi Jet Fusion uses a fine-grain PA 12 material that allows for thin layers of 80 microns. This creates parts with high density and low porosity compared to parts manufactured using laser sintering. Plus, it requires minimal finishing. This shortens lead times, which is ideal for functional prototypes and small series of usable parts.

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Prototypes with mechanical properties comparable to those of injection molded components
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Series of small components as a cost-effective alternative to injection molding
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Personalized manufacturing, the economical production of unique, complex designs that are only manufactured as individual products or in small quantities
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Lightweight structures with complex lattice structures
accuracy
±0.2mm
Depending on the project, the accuracy can still be improved.
Max. printing space
380 x 280 x 380 mm
Layer thickness
0,08 mm
Surface structure
Unfinished components have a soft surface without visible layers, but they can be sandblasted and colored
Minimum wall thickness
1 mm (for hinges 0.5mm)
materials
PA 12 (Polyamide)