Polyjet 3D printing process

Multi Jet Modeling (MJM)

In the polyjet process (also known as multi-jet modelling, MJM), liquid polymer is applied drop by drop and cured.

Installation space

1000 x 800 x 500 mm


  • Model making (detailed models)
  • Automobile industry
  • Aircraft industry
  • Prototypes


  • Very smooth surfaces, almost no layers
  • High resolution
  • Combination with other materials possible (multi-material printing is possible)

The Polyjet 3D printing process  or Multi Jet Modelling (MJM) uses a print head with multiple nozzles to apply small droplets of material onto a printing plate. The liquid polymer is immediately hardened by UV light allowing the desired components  to be produced layer by layer.  As the droplets that are applied are very small, very fine details can be reproduced.  Additionally the material melts before the curing process and the surface becomes very smooth. During printing overhanging components must be provided with support structures.

With the MJM 3D printing process, the desired parts can be printed directly in multiple colours when using multiple print heads. Translucent materials that allow light to pass through are also available. Due to the material application through small droplets, material and colour gradients are also possible.