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MJF 3D printing service

Source 3D-printed parts using our advanced Multi Jet Fusion (MJF) capabilities. We offer functional prototyping services and capacity for production at scale with several high-quality finishing options available. Lead times from 3 days.

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What is Multi Jet Fusion?

Multi Jet Fusion (MJF) is an advanced 3D printing process that can speedily produce accurate, complex and detailed parts from powdered thermoplastics. MJF parts have high tensile strength and fine feature resolution, making them perfect for complex industrial parts. Developed by HP, this relatively new 3D printing technology is perfect for creating functional prototyping and production parts with isotropic mechanical properties, making it a go-to for any application requiring geometric complexity and impressive cosmetic and mechanical properties.

Learn more about MJF 3D printing

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MJF (Multi Jet Fusion) capabilities

Maximum build size Standard lead time Dimensional accuracy Layer height Minimum feature size
380 × 284 × 380 mm From 3 business days ± 0.3% with a lower limit of ± 0.3 mm (± 0.012 in) 80μm 0.5 mm

MJF 3D printing uses strong, versatile materials

Leading companies across many industries use MJF for its industrial-grade materials

Material Color Resolution Tensile strength Elongation at break Heat deflection temperature Application
HP PA 12 (Nylon 12) Gray, dyed black 80μm 48 MPa 15-20 % 95-175 °C Functional prototypes, complex assemblies, watertight applications
Glass-filled HP PA 12 (US only) Gray 80μm 30 MPa 6.5 % 121-173 °C Enclosures, housings, cases, fixtures, structural parts, tooling

Surface finishes for MJF 3D printing

One of the benefits of MJF 3D printing is how well part surfaces come out, especially after post-processing. Here are the surface finishes available for MJF.

As printed (Gray)

Gray color, smooth surface, without visible layers, powder texture

Dyed (black)

Dyed black by immersion in a warm color bath. The color reaches a depth of about 0.5 mm on all surfaces.

MJF surface finish, Vibro polished, Tumbling
Tumble smoothing

The parts are placed in a tumbler of ceramic chips, creating a polished finish similar to injection molding.

How MJF stacks up against other 3D printing technologies

Materials Price Dimensional accuracy Strengths Build volume Layer thickness Min. feature size
FDM 5 $ ± 0.5% with a lower limit on ± 0.5 mm Low cost, wide range of materials 500 x 500 x 500 mm (19.68" x 19.68" x 19.68") 100-300μm 2.0 mm (0.0787'')
Industrial FDM 6 $$$$ ± 0.25% with a lower limit: ± 0.25 mm (± 0.010") High level of repeatability, engineering grade materials 406 x 355 x 406 mm (15.98” x 13.97” x 15.98") 100-330μm 2.0 mm (0.0787'')
Prototyping SLA 8 $$ ± 0.5% with a lower limit of ± 0.15 mm (± 0.006")/ Smooth surface finish, fine feature details 145 × 145 × 175 mm (5.7" x 5.7" x 6.8") 50-100μm 0.2 mm (0.00787'')
Industrial SLA 3 $$$ ± 0.2% with a lower limit of ± 0.127 mm (±0.005") Smooth surface finish, fine feature details, big print area 500 x 500 x 500 mm (19.68" x 19.68" x 19.68") 50-100μm 0.2 mm (0.00787'')
SLS 2 $$ ± 0.3% with a lower limit of ± 0.3 mm (± 0.012”) Design flexibility, supports not required 395 x 500 x 395 mm (15.53" x 19.68" x 15.53") 100μm 0.5 mm (0.0196”)
MJF 2 $$ ± 0.3% with a lower limit on ± 0.3 mm (0.012'') Design flexibility, supports not required 380 x 285 x 380 mm (14.9'' x 11.2'' x 14.9'') 80μm 0.5 mm (0.0196”)

Why should you choose MJF 3D printing?

We have high standards for MJF 3D printing 

We manufacture your custom parts according to strict manufacturing standards and ensure all parts and processes adhere to the DTSS-3D standard. A thorough verification of these requirements is included in our inspection report that we ship with every order. 

  • Bead blasting and air blasting are used to remove any remaining unfused powder.

  • To improve cosmetic appearance, additional post-processing can be applied, including dyeing, vapor smoothing and tumbling.

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Advantages and drawbacks of MJF 3D printing

Detailed image of MJF printed part
  • MJF is excellent for building strong parts, with maximum tensile strengths of XY and Z 48 MPa/6,960 psi with the ASTM D638 method. 

  • MJF is ideal for producing parts with complex mechanical properties across all geometries.

  •  MJF’s more robust automation capabilities reduce the need for most post-processing. 

  •  MJF provides quicker build speeds in comparison to other technologies, even with larger quantities of parts.

Example of MJF printed part
  • Printing with MJF will yield high-quality parts, though the cost may be considerably higher than with other technologies.

  • Limited materials available. HP may expand the range in the future.

Design guidelines for MJF 

This table summarizes the recommended and technically feasible values for the most common features of MJF 3D printed parts.

Learn more about how to design parts for MJF 3D printing

Feature Recommended size
Unsupported walls 1.0 mm (0.040 in)
Supported walls 0.7 mm (0.030 in)
Minimum detail size 0.25 mm (0.010 in)
Minimum hole size 1.0 mm (0.040 in)
Moving parts 0.5 mm (0.020 in)
Assembly clearance 0.4 mm (0.016 in)
Maximum wall thickness 20 mm (0.8 in)

More resources for MJF
3D printing

Learn more about how MJF 3D printing works and how to design the best parts for this groundbreaking additive manufacturing technology.

Our other 3D printing processes

FDM 3D printed part in FDM process

Fast & affordable prototyping

  • Dimensional accuracy of ± 0.05% with a lower limit: ± 0.05 mm

  • Lead times from 1 business day

See our FDM services
SLS 3D printed part in SLS process

Functional prototyping & low-run production

  • Dimensional accuracy of ± 0.3% with a lower limit of ± 0.3 mm (± 0.0118″) 

  • Lead times from 3 business days

See our SLS services
SLA 3D printed part in SLA process

Visual prototyping

Dimensional accuracy of ± 0.5% with a lower limit of ± 0.15 mm (± 0.006")

See our SLA services