What is Multi-Jet Fusion 3D Printing?
Multi Jet Fusion (MJF) is a industrial power bed fusion 3D printing technology that chemically melts powder together to create strong, precise and detailed parts. Primarily used for end-use manufacturing thanks to its speed, MJF is a highly cost-effective solution for low to medium volume production. It eliminates the need for expensive tooling and enables production flexibility, allowing for cost-efficient customization and batch production. This cost-effectiveness makes MJF economically viable for various industries, including automotive, aerospace, consumer goods, and healthcare.
Multi-Jet Fusion builds parts by spreading a thin layer of powdered material across a build platform. Multiple jets then apply two types of liquid agents onto the powdered bed: the fusing agent and the detailing agent. The fusing agent is selectively applied to the areas where the part is to be formed. It helps bind the powder particles together during the subsequent heating process. The detailing agent is applied to the areas requiring fine details and features, enhancing the resolution of the printed part. After the agents are applied, a heating unit passes over the powdered bed causing it to melt and bond the powder particles together. The build chamber is then rapidly cooled to solidify the fused powder and maintain its shape and integrity. This process is repeated for subsequent layers, with a new layer of powder spread and the agents applied according to the digital design specifications.

15" x 12"
Max X/Y Build Volume
± 0.3
MM Part Tolerances
2
High Performance Materials
3-6 Day
Average Lead Time
Materials| Selective Laser Sintering

HP PA12 Natural Grey
Tough and Durable
HP High Reusability PA12 is a highly durable nylon 12 material with excellent surface resolution. PA12 produced using Multi Jet Fusion is very high density (98%) makes the parts highly durable and ideal for creating parts that need to withstand heavy use or exposure to harsh environments. Its high strength-to-weight ratio also makes it a great option for lightweight parts that require a high degree of strength and durability. Parts produced with this material have consistent and reliable quality. This is particularly important for complex parts or assemblies that require a high degree of precision. Parts are watertight and capable of meeting USP Class I-VI and US FDA guidance for biocompatibility.
Tensile Strength | 48 MPa |
Tensile Elongation | 20 % |
Flexural Strength | 70 MPa |
Izod Impact, Notched | 3.5 kJ/m2 |
Heat Deflection | 95 °C @ 1.82 MPa |

HP PA12 Dyed Black
Tough, Durable & Black
HP PA12 is a durable nylon material with excellent surface resolution that is deep color dyed black. The black color dye absorbs deeply into the part to offer an uniform matte finish that is both durable and highly abrasion resistant for long term functional use.
Tensile Strength | 48 MPa |
Tensile Elongation | 20 % |
Flexural Strength | 70 MPa |
Izod Impact, Notched | 3.5 kJ/m2 |
Heat Deflection | 95 °C @ 1.82 MPa |
Material Surface Finishes | HP Multi-Jet Fusion
Support structures removed and the MJF part is media blasted to offer a uniform finish
Support structures removed and the MJF part is deep color dyed black.
Design Guidelines | HP Multi-Jet Fusion

Maximum Build Volume
380 x 284 x 380 mm. (15 x 11.2 x 15 inches)
Tolerances

Layer Height
80 MicronsThe 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. Unless otherwise specified, all SLS parts are printed at a 100 micron layer height.

Surface Finish
Uniform, MatteWhy Use Multi-Jet Fusion?
Multi Jet Fusion (MJF) by HP is powerful industrial 3D printing technology due to its exceptional printing speed, making it suitable for both rapid prototyping and production-grade manufacturing. The technology delivers excellent dimensional accuracy and the ability to achieve intricate and fine details. By utilizing detailing agents, MJF enhances the resolution of printed parts, resulting in sharp edges, thin walls, and small features. This level of precision is crucial for designers seeking high-quality, intricate designs, and complex geometries with consistent mechanical properties throughout the the entire part.
One of the key benefits of Multi-Jet Fusion is its speed. Unlike other power bed fusion 3D printing methods, MJF utilizes an array of jetting nozzles that simultaneously deposit fusing and detailing agents onto a powder bed. This parallel processing enables rapid manufacturing, reducing production time compared to other techniques. The speed of MJF makes it ideal for quickly iterating and testing designs, accelerating product development cycles as well as producing large volumes of parts for produciton.
Case Studies | Multi-Jet Fusion

How Multi-Jet Fusion Nylon PA12 was used in Covid-19 relief efforts by Forge Labs 3D Printing services. See examples of how 3D printing was critical in alleviating supply chain challenges.

How Forge Labs used a combination of 3D scanning and Nylon PA12 printing to reconstruct a 12,500 year old fossilized skeleton of bison occidentalis.

A comprehensive guide to the 3D Printing Industry in Toronto, Ontario. How Multi-Jet Fusion has become an integral part of manufacturing.