MJF Technology
Thermoplastic TechnologyMJF

Multi-Jet Fusion3D Printing for High-Performance Prototypes & End-Use Parts

Precision engineering with fine detail resolution and excellent surface quality. Production-grade materials like PA12 & glass-filled nylons for strength and durability. Scalable for low-to-mid-volume manufacturing with cost-efficient batch production.

Quick Specifications

Build Volume
380 × 284 × 380 mm
Tolerance
±0.3% mm
Layer Height
80 microns
Machinery
HP Jet Fusion 5200
MJF 3D Printer
Rapid Production
High Throughput
Multi-Jet Fusion technology example showing MJF 3D printing capabilities and quality
MJF Technology
Thermoplastic Manufacturing

Technology Overview

High-Speed Production 3D Printing

MJF combines speed with quality through parallel processing technology. Ideal for rapid prototyping and scalable production with consistent mechanical properties and excellent surface finish.

Advanced manufacturing capabilities enable complex geometries, functional prototypes, and end-use production parts that would be impossible or cost-prohibitive with traditional manufacturing methods. From functional prototypes to end-use production parts, this technology delivers exceptional performance across demanding industries.

380 × 284 × 380
Build Volume (mm)
Efficient batch manufacturing volume
±0.3 mm
Tolerance
Dimensional accuracy for reliable manufacturing
80 microns
Layer Height (μm)
Optimal layer height for speed and quality balance
2+
Materials Available
Diverse material options for various applications

Production Applications

1 to 1000+ Parts Built in Hours

Engineered for high-volume production with consistent mechanical properties across thousands of parts, MJF technology delivers production-grade components with excellent surface finish and dimensional accuracy. The thermal fusion process enables rapid part consolidation with up to 80% powder reusability, making it cost-effective for batch production. Industries rely on MJF for functional prototypes, end-use parts, and custom manufacturing where speed and consistency are critical.

End Use Parts for High-Performance Applications

Production workflows benefit from MJF's unique ability to nest hundreds of parts efficiently within each build, maximizing throughput while maintaining consistent quality. The thermal inkjet process applies fusing and detailing agents with precision, creating smooth surfaces and sharp edges without traditional support structures. Real-time monitoring and closed-loop control systems ensure every part meets stringent quality standards for batch production and regulatory compliance.

Key Advantages


Complex Geometries:Intricate internal channels, overhangs, and assemblies impossible with traditional manufacturing.
Functional Prototypes:Test mechanical properties and fit before investing in production tooling.
Custom Tooling:Jigs, fixtures, and manufacturing aids tailored to specific production requirements.
End-Use Parts:Production components for aerospace, medical, automotive, and industrial applications.
MJF automotive components
MJF medical devices
MJF aerospace components
MJF complex geometries
Technical Specifications

How MJF 3D Printing Works

Multi-Jet Fusion technology delivers superior speed and quality through its unique parallel processing approach, making it ideal for both rapid prototyping and scalable production.

Powder Bed Preparation
Step 1

Powder Bed Preparation

A thin, uniform layer of powdered thermoplastic material is spread across the heated build platform using precision spreading mechanisms.

Step Specifications

Layer Height80 microns
MaterialNylon PA12
Step 1 of 4
Material Library

High Throughput MJF Materials

High-throughput MJF materials combine speed with quality, delivering functional parts with excellent mechanical properties. Our PA12 and PA11 materials offer superior surface finish and dimensional accuracy for both prototyping and production runs.

HP MJF PA12 Part
Primary Material

HP MJF PA12

Engineering Grade Material

Highly durable Nylon 12 with excellent surface resolution and high density (98%). High strength-to-weight ratio with resistance to harsh environments. Watertight and meets USP Class I-VI and US FDA guidance for biocompatibility.

Applications:

Functional prototypesEnd-use partsComplex assembliesMedical applicationsConsumer products
Material Datasheet
HP MJF PA12 Glass Filled Part
Reinforced

HP MJF PA12 Glass Filled

High Rigidity Glass Filled

Glass fiber reinforced Nylon 12 designed for enhanced stiffness, thermal resistance, and dimensional stability. 20% glass fiber content provides superior rigidity and reduced warping under load.

Applications:

Structural componentsAutomotive bracketsAerospace partsIndustrial toolingHigh-load applications
Material Datasheet
Post-Processing

Material Surface Finishes

MJF parts have a smooth, matte surface with a slightly grainy texture due to the powder-based printing process. Unlike FDM, MJF does not produce visible layer lines, resulting in a more uniform and professional appearance straight from the printer. At Forge Labs, bead blasting is performed as a standard post-processing step to remove excess powder and refine the surface texture.

Standard Finish MJF Finish
As-Printed

Standard Finish

Natural Grey

MJF parts are delivered with a standard bead-blasted finish in natural grey. This process removes excess powder and slightly smooths the surface while maintaining the material's natural matte texture.

Finish Attributes

Surface TextureUniform, matte grey finish with subtly grainy texture
Color & AppearanceMatte Grey
Detail RepresentationFine details are well represented
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Natural Finish
Black Dyed
Natural Finish
Black Dyed
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Enhanced

Deep Color Dye

Dyed Black

Specialized dye bath creates deep, uniform black color that chemically bonds with the nylon material. Unlike painted finishes, the dye fully penetrates the surface and won't chip or wear off over time.

Finish Attributes

Surface TextureBlack dye fully saturates the material for professional finish
Color & AppearanceMatte Black
Detail RepresentationFine details are well represented
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Natural Finish
Vapor Smoothed
Natural Finish
Vapor Smoothed
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Premium

Vapor Smoothing

Enhanced Finish

Advanced chemical smoothing technique that enhances surface quality by slightly melting and redistributing the surface material, eliminating grainy texture and sealing porous areas.

Finish Attributes

Surface TextureRemoves the powdery texture of MJF parts
Color & AppearanceSmoother, semi-gloss finish
Detail RepresentationFine details may become diminished
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Performance Paint MJF Finish
Premium

Performance Paint

Custom Finish

Automotive-grade coating that enhances aesthetics and durability. Hand-finished for smooth surfaces with professional-grade equipment. Custom color matching available for precise branding needs.

Finish Attributes

Surface TextureMatte to Semi-Gloss
Color & AppearanceCustom color matching for precise branding
Detail RepresentationDetails Clear & Defined
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Design Guidelines

Multi-Jet Fusion Design Guidelines

Essential design considerations to optimize your Multi-Jet Fusion parts for manufacturing success.

Maximum Build Volume

Maximum Build Volume

380 x 284 x 380 mm (15 x 11.2 x 15 inches)

If your parts require specific tolerances, please include an engineering drawing along with the part. Parts designed with large flat planes will likely warp, so this should be avoided if tight tolerances are required.

Parts with large flat surfaces are prone to warping and should be avoided for applications requiring tight tolerances.

Tolerances

Tolerances

Nylon PA 12: ±0.3%, with a lower limit of ±0.5 mm

If your parts require specific tolerances, please include an engineering drawing along with the part. Parts designed with large flat planes will likely warp, so this should be avoided if tight tolerances are required.

Always provide engineering drawings for parts requiring specific dimensional tolerances.

Layer Height

Layer Height

100 Microns

The layer height is the overall Z resolution of the part; we avoid stepping artifacts on important features of your models by orienting the part(s) along the Z plane or at a 20 degree angle on all sides.

Optimal part orientation minimizes visible layer lines on critical surfaces.

Surface Finish

Surface Finish

Uniform, Matte

Parts are bead blasted and have a uniform grainy matte texture, similar to ultra-fine sandpaper.

The matte finish provides excellent grip and professional appearance for functional parts.

Multi-Jet Fusion advantages

Advantages of MJF 3D Printing for Prototyping & Production

Multi Jet Fusion (MJF) is an advanced powder-bed 3D printing process that delivers high-speed production, fine detail resolution, and strong, functional parts. The process uses parallel processing technology, making MJF ideal for rapid prototyping, iterative design testing, and scalable production of end-use parts.

Excellent Detail & Precision
Fine features, sharp edges, and smooth surfaces achieved through detailing agents and uniform heating.
High-Speed Production
Faster than other powder-bed 3D printing processes due to parallel agent deposition and infrared fusion.
Consistent Mechanical Properties
Uniform fusion process ensures high-strength, isotropic parts with no weak Z-axis layering.
No Support Structures Needed
Powder bed supports the part during printing, allowing for complex geometries and high-density builds.
Scalable for Production
Enables batch manufacturing with consistent quality, making it cost-effective for low to medium production volumes.
High Material Efficiency
Unfused powder is reusable, reducing material waste and lowering overall production costs.

Instant Quote Tool

From Upload to Delivery

Simple File Upload Process

Drag and drop your 3D files or browse to upload. Our system automatically analyzes your designs and provides instant feedback on printability and optimization suggestions.

  • Drag & drop multiple file formats
  • Automatic design analysis
  • Printability feedback
  • File optimization suggestions
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File upload interface
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Industry Applications

MJF Applications Across Industries

Discover how Multi-Jet Fusion is transforming manufacturing across industries with innovative solutions and enhanced capabilities.

Success Stories

Real results from our MJF manufacturing partnerships

Automotive Interior Dashboard

Automotive Interior Dashboard

Complex dashboard assembly with integrated clips and mounting features produced as a single part

Traditional manufacturing required multiple parts and assembly steps
MJF enabled production of integrated assembly with superior surface finish
Improved performance metrics
Enhanced design flexibility
Medical Prosthetic Device

Medical Prosthetic Device

Custom prosthetic with patient-specific geometry and integrated mechanical features

Need for biocompatible material with complex internal channels
PA12 material met biocompatibility requirements while enabling complex geometry
Improved performance metrics
Enhanced design flexibility

Ready to manufacture your parts?

Upload your CAD files to get instant quotes for MJF 3D printing. Professional-grade manufacturing with fast turnaround times.

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Frequently Asked Questions

MJF Questions & Answers

Common questions about MJF 3D printing technology. Can't find what you're looking for? Reach out to our technical team.