HP Multi jet Fusion

High-speed, production-grade 3D printing for parts that are built to perform.

  • Production-Ready Prototypes — Durable parts with end-use performance
  • Fast Turnarounds — MJF parts delivered in as little as 2 days
  • Precision & Strength — Ideal for complex geometries and tight tolerances
  • No Tooling Required — Cost-effective short runs without expensive molds
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High-Performance Parts, Made Easy

Multi Jet Fusion (MJF) is the go-to 3D printing process when you need functional prototypes or production-ready parts fast. With superior mechanical strength, fine feature resolution, and true design flexibility, MJF is ideal for everything from testing to low-volume manufacturing.
At Tronix3D, we use HP’s advanced MJF technology to help engineers and product teams produce detailed, durable parts without the delays or costs of traditional methods. Whether you’re iterating a new design or bridging to production, we make it easy to move forward with confidence.

How Does Multi Jet Fusion 3D Printing Work?

HP Multi Jet Fusion (MJF) uses a powder bed fusion process to build parts layer by layer with exceptional speed and accuracy. A fusing agent is selectively jetted onto a bed of nylon powder, followed by a detailing agent to enhance resolution. A high-powered infrared lamp then passes over each layer, fusing the material where needed.

This unique process allows for isotropic mechanical properties, fine detail, and excellent surface finish without the layering lines typical of other methods like FDM. Because there’s no need for support structures, MJF is ideal for complex geometries and nested parts, maximizing both design freedom and build efficiency.

At Tronix3D, we combine this technology with expert guidance to help you go from CAD to functional part fast, precise, and production-ready.

Benefits of MJF vs. Other 3D Printing Methods

Multi Jet Fusion stands out for its ability to produce high-quality, functional parts at scale without compromising on speed or detail.

Compared to Filament Based FDM:

  • Better Surface Finish: MJF parts have smoother surfaces and finer resolution no visible layer lines.
  • Stronger Parts: MJF delivers isotropic strength, meaning parts are strong in all directions.
  • More Complex Geometries: No support structures needed, allowing for intricate, enclosed, or nested designs.

Compared to SLS (Selective Laser Sintering):

  • Faster Build Times: MJF’s layer-by-layer fusion process is faster and more consistent.
  • Improved Accuracy: Delivers sharper edges and finer details, especially in small or tight-feature parts.
  • Lower Cost per Part: Greater packing efficiency in the build volume reduces material waste and cost.

Why Engineers Choose MJF

  • Functional parts that look and perform like production components
  • Reliable repeatability across prototypes and low-volume production
  • Clean, professional appearance with minimal post-processing

Whether you’re testing a new product or shipping limited-run components, MJF gives you the edge in speed, quality, and scalability.

Materials Available for MJF

At Tronix3D, we offer advanced polymers optimized for HP’s Multi Jet Fusion process. These materials are production-grade, mechanically strong, and ready for real-world use.

HP PA 12 Nylon

A tough, general-purpose nylon with excellent strength, dimensional stability, and chemical resistance.
Perfect for housings, enclosures, brackets, and everyday functional parts.

HP PA 12 Nylon Glass Beads

A glass-bead-reinforced PA 12 for parts that need added stiffness, enhanced dimensional accuracy, and greater stability under load.
Ideal for structural applications and high-precision assemblies.

BASF Ultrasint® TPU 88-90A

A flexible, durable thermoplastic polyurethane with rubber-like elasticity.
Great for seals, gaskets, cushioning parts, and components that require repeated compression or movement.

Why it Matters

  • Strong, lightweight, and highly detailed parts
  • Resistance to impact, heat, and chemicals
  • Options for both rigid and flexible applications
  • Ideal for prototyping and low-volume production

Best Applications for MJF

Multi Jet Fusion is trusted by engineers and product teams across industries for parts that demand precision, durability, and speed. It’s the perfect fit for both iterative prototyping and low-volume production.

Top Applications Include:

  • Functional Prototypes: Test fit, form, and function with end-use quality ideal for design validation and customer feedback.
  • End-Use Production Parts: Replace injection molding for short runs, bridge production, or custom components with no tooling costs.
  • Housings & Enclosures: Strong, detailed shells for electronics, robotics, medical devices, and industrial applications.
  • Brackets, Clips & Mounts: Durable structural parts that hold up under real-world stress and load requirements.
  • Complex Assemblies: Take advantage of design freedom. MJF enables integrated features and consolidated parts that reduce assembly steps.

Whether you need 1 part or 1,000 parts, MJF helps streamline your development cycle and reduce time to market without compromising on performance.

Optimize Your Designs for Better Prints, Faster

Designing for Multi Jet Fusion isn’t just about what can be printed, it’s about how to print smarter. At Tronix3D, we’ve compiled key design strategies to help you.

Why It Matters:

  • Improve part manufacturability
  • Enhance surface finish and cosmetic quality
  • Reduce post-processing time and production costs

Get the inside track on how to design parts that take full advantage of MJF’s capabilities.

Download Our MJF Design Guide EBook Now

Finishing Options for MJF Parts

MJF parts from Tronix3D come off the printer strong, accurate, and production-ready. But when presentation and performance matter, finishing makes all the difference.

Available Finishes:

  • Polishing Media: A fast, effective method to polish part surfaces and enhance cosmetic appeal—ideal for client-ready prototypes and assemblies.
  • Vibratory Tumbling Surface Smoothing: A mechanical process that reduces surface roughness and creates a more uniform texture perfect for reducing friction or preparing for coatings.
  • Dyeing (Black): Uniform color throughout the part enhances appearance, reduces UV sensitivity, and provides a sleek, professional finish.
  • Cerakote Coating: Durable ceramic coating for added protection, premium aesthetics, and chemical resistance.
  • Vapor Smoothing: Transforms surface texture, seals porosity, and improves cleanliness especially useful for fluid-handling components.

Why It Matters:

  • Elevates part quality for both internal and external stakeholders
  • Enhances durability and wear resistance
  • Provides functional and aesthetic versatility for any application

Let us know your part’s end-use, and we’ll recommend the right finish to match.

Get Started

Why Choose Multi Jet Fusion at Tronix3D?

Fast Turnarounds

Get functional, production-grade parts in as little as 2 days. Ideal for quick iteration or meeting tight project deadlines.

Created by Ben Peetermansfrom the Noun Project

Production-Level Quality

MJF delivers isotropic strength and high detail perfect for end-use parts, not just prototypes.

Complex Geometries Made Simple

Print intricate features, internal channels, and assemblies without support structures or tooling limitations.

Expert Support From Start to Finish

From material selection to design guidance, our team helps you optimize for cost, performance, and speed.

Tronix3D created a Multi Jet Fusion design guideline eBook to ensure part manufacturability, enhance the cosmetic appearance of parts and minimize overall production time.

Ebook Download

Designing for Multi Jet Fusion isn’t just about what can be printed—it’s about how to print smarter. At Tronix3D, we’ve compiled key design strategies to help you.

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