Multi-Jet Fusion (MJF) 3D Printing Service

Average 4–5 business day turnaround on durable, tight-tolerance parts — ISO 9001 compliant and an HP-recognized MJF provider, trusted by aerospace, automotive, healthcare, and more industries to ship functional parts faster.

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What Is Multi Jet Fusion (MJF)?

Multi Jet Fusion (MJF) is an industrial 3D printing, additive manufacturing, process that uses nylon powder and precision fusing and detailing agents to create strong and accurate parts. MJF 3D printing is used in various industries today including automotive, aerospace, healthcare, and consumer goods to name a few. MJF 3D printing is widely used for durable prototypes and end-use production parts because it delivers excellent mechanical strength, tight tolerances, and fine surface detail without the need for support structures. It is a cost-efficient, low-waste solution for mass customization, functional prototypes, and components that require durability and dimensional accuracy.

Since it's an additive manufacturing process, MJF works by building a part layer by layer. The MJF process starts with a thin layer of nylon powder, spread across the build platform, and then a printhead selectively applies a fusing agent to define the part's shape and a detailing agent to improve edge definition and surface accuracy. Infrared energy then passes over the build area, melting the treated powder into a solid layer while the untreated powder remains loose and acts as natural support material. This sequence repeats until the fully formed part is built within the powder bed.

Which Nylon Materials Can You Print With MJF? A Full Breakdown

JawsTec offers a variety of 3D printing materials in the MJF process

Material	Default Color	Resolution	Weaknesses	Strengths	Applications
Nylon PA 12	Grey	80μm	Occasional defects	Efficient cost	Prototypes, test parts
Nylon PA 12 S	Grey	80μm	Strength Difference	Aesthetics	Prototypes, test parts
Nylon PA 11	Grey	80μm	Surface defects	Chemical resistance	Prototypes
Glass-Filled	Grey	80μm	Higher cost	Excellent strength	Complex parts

Post-Processing and Surface Finish Options for MJF Printed Parts

We offer 3 types of surface finishes for MJF Printing

Raw

Part is taken from machine and excess powder is removed

Polished

Part is tumbled and then shot-peened providing a smooth surface

Vapor Polished

Parts are smoothed in a machine, providing an injection-molded surface look

MJF 3D Printing Pricing — What Affects Your Quote and How to Reduce Cost

MJF 3D printing costs vary based on a few key factors—there’s no one-size-fits-all price.

Part size is the biggest driver, as larger parts require more material and take up more space in a build.
Material selection also affects cost, with different nylons and specialty options offering varying performance and price points.
Part geometry can influence pricing, as designs that use more material or pack inefficiently increase production cost.
Order volume plays a role, with higher quantities typically reducing the cost per part through more efficient builds.

In short, pricing depends on size, material, and manufacturability. For an accurate cost, a custom quote is the best option.

Application of Multi Jet Fusion

Multi Jet Fusion is used across a wide range of industries thanks to its ability to produce strong, functional parts quickly and at scale.

At JawsTec, we’ve worked with a number of companies to produce MJF parts across manufacturing and industrial applications—supporting jigs, fixtures, tooling, and replacement components. The automotive industry also relies on MJF for custom parts, housings, and low-volume production without tooling costs.

We also partner with companies in healthcare and consumer products, where MJF is used for customized devices, enclosures, and end-use parts that require both durability and precision.

In short, MJF is widely adopted by industries that need functional parts, fast turnaround, and scalable production.

MJF Build Volume, Tolerances, Wall Thickness & Layer Resolution

Maximum build size

Standard lead time

Tolerance

Layer height

Minimum feature size

380mm x 280mm x 380mm

4-5 business days

(X,Y): +\- 0.300mm or 100mm +\- 0.3%

(Z): +\- 0.400mm or > 100mm +\- 0.4%

80 μm

1 mm

How to Design Parts for MJF — Guidelines for Better Prints and Fewer Revisions

We can print your parts off almost any 3D CAD file, including .STL, .3MF, and .OBJ. The minimum dimension we suggest for your parts in 1 mm to help protect the quality of the print. We also offer in-house CAD file design assistance. For more information, email [email protected].

Learn more about designing CAD files for MJF printing