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MJF 3D Printing


MJF 3D Printing
What is MJF?

Multi Jet Fusion (MJF) is a powder bed fusion 3D printing technology developed by HP in 2014. It works by spreading a thin layer of nylon powder on a build platform, selectively fusing the powder using an inkjet array of heated nozzles, and adding an extra inkjet to refine details. This process is repeated layer by layer until the final part is created. MJF technology allows for the creation of parts with high accuracy, durability, and detail resolution.


Drone frame printed with MJF PA12 Black.

Our Production Capabilities of MJF

3DSPRO wants every innovator to make informed decisions. We are trying to make all information as transparent as possible. Here are some technical data of our production capability for your reference.

Lead Time48 Hours/72 Hours/5 Days
Maximum Printing Size380*284*380 mm
Tolerance± 300μm or 0.3%mm
Machines Operating

MJF Pros & Cons

One of MJF's primary advantages is its speed. Due to its ability to selectively fuse the powder, MJF can create parts at a faster rate than other powder bed fusion 3D printing technologies. This results in faster build times and higher throughput, making MJF ideal for low-to-medium volume production runs.

Another advantage of MJF is its ability to create complex geometries and intricate parts with high accuracy and resolution. The two unique inks MJF uses during printing allow it to produce parts with thin walls, small features, and complex shapes that would be difficult or impossible to create using traditional manufacturing methods.


Shelf printed with MJF PA12 Gray, Topology optimized. 

MJF also allows for the creation of functional parts with unique mechanical properties. The use of Nylon PA 12 powder enables the creation of parts with high strength, durability, and flexibility, which makes MJF ideal for producing parts for a wide range of applications, including automotive, aerospace, medical devices, and consumer goods.

On the other hand, one of the primary disadvantages of MJF is its cost. The equipment and maintenance required for MJF are expensive, and the cost of the nylon powder can also add up. 3DSPRO is an ideal choice if you want to enjoy the speed and quality of MJF but don't want the hassle of maintaining a huge MJF printer.

How are people utilizing MJF?

People are using Multi Jet Fusion (MJF) for a variety of applications, from rapid prototyping to low-volume production runs. Here are some examples of how people are using MJF:


Jewelry and Fashion: With MJF, a designer can quickly produce high-quality, complex, and one-of-a-kind designs. Post-processing, such as vapor smoothing, can achieve a very smooth surface texture.


Architecture and Construction: Architects use MJF to make scale models of buildings and other structures for design and planning purposes. MJF can print complex geometries with high accuracy and detail resolution without a support structure, helping architects showcase each room of the building more clearly.


Education and Research: MJF can be found easily in educational and research settings when creating models and prototypes for experimentation and testing. The ability to produce parts with unique mechanical properties and high accuracy can match the needs of experiments with high standards.


Energy: MJF is being used to create parts for energy production and distribution, such as wind turbine components and solar panel brackets. Its ability to produce lightweight parts with high strength and durability makes 3D-printed functional parts a feasible option for engineers and workers.


Entertainment: MJF technology is used to make many props and costumes for movies, TV shows, and theater productions. Although the surface finish options for MJF might be relatively limited because of the powder material it uses, its ability to create high-quality, detailed parts with unique designs is significant.


Overall, MJF is a versatile 3D printing technology with a wide range of applications in various industries. Its ability to quickly produce high-quality, complex parts with unique mechanical properties has made it a popular choice for many applications.

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