MJF Printing – Zenis

High Performance Multi Jet Fusion 3D Printing

HP Multi Jet Fusion (MJF) is an innovative powder-based 3D printing technology that enables the rapid and accurate manufacturing of durable parts with an excellent surface finish. Experiencing rapid global expansion, MJF is increasingly preferred by businesses as a reliable substitute for injection moulding.

Fast Accurate Multi Jet Fusion Printing

HP Multi Jet Fusion (MJF) is one of the most advanced industrial 3D printing technologies available today. It enables the rapid production of mechanically strong, dimensionally accurate, and finely detailed parts making it an ideal solution for both functional prototypes and end-use production components.

At Zenis, we use HP MJF technology to help manufacturers, engineers, and product developers move from concept to finished part faster than ever without the cost and lead time of conventional tooling.

Benefits Of Advanced MJF Technology

Multi Jet Fusion is ideal for both prototyping and full-scale production, delivering high-quality results at a low cost. For small and medium batches, MJF is significantly more affordable than traditional mould-based manufacturing, allowing businesses to achieve batch-production quality without the expense of tooling. Because the technology does not require support materials, parts are easier to design, produce, and post-process giving designers greater freedom and shorter lead times. The result is durable, functional components ready for real-world use.

Industrial-Grade Strength

MJF parts deliver isotropic mechanical properties comparable to injection-molded components, making them suitable for demanding functional applications.

Design Freedom

Because the process requires no support structures, complex geometries, internal channels, lattice structures, and assemblies-in-one-print are all possible.

Cost-Effective Low-Volume Production

For batches from a few units up to several thousand, MJF is significantly more economical than building injection molds.

High Productivity

Hundreds of parts can be produced in a single build, allowing fast turnaround for both prototype and serial production needs.

Tight Tolerances and Fine Detail

With an 80-micron layer thickness and high-resolution voxel-level control, MJF produces parts with sharp features and consistent accuracy.

Repeatable Quality

Part-to-part and batch-to-batch consistency makes MJF a reliable choice for production runs and certified applications.

Materials Used

In

Multi Jet Fusion

Printing

We work with a range of certified powders, each suited to different applications from rigid functional parts to flexible, elastic components. Below are the materials we use most often.

PA 12

PA 12 is the most widely used material in MJF printing, ideal for producing strong, functional, and detailed parts at a low cost per part. It delivers high-density components with excellent chemical resistance to oils, greases, aliphatic hydrocarbons, and alkalies, making it a perfect fit for complex assemblies, housings, enclosures, and watertight applications.

PA 12 – S

PA 12 S is engineered for parts where appearance matters as much as function. Thanks to its unique particle shape and narrow size distribution, it produces surfaces up to 70% smoother straight from the printe. Ideal for consumer goods, lighting, promotional items, jigs and fixtures, and even clear-aligner molds for dental applications.

PA 12 – W

PA 12 W is our choice for white functional parts that need both performance and a clean, professional finish. It’s perfect for prosthetics, medical equipment, lighting, fashion and wearables, and household appliances. The material delivers consistent color across builds and shows excellent color stability even after weathering comparable to injection-molded plastics.

TPU

TPU is a thermoplastic polyurethane that produces flexible, durable, elastomeric parts with excellent rebound and fatigue resistance. It’s ideal for cushioning, shock-absorbing components, and repeated-use applications across healthcare, sports gear, footwear, industrial seals, and automotive interiors.

How Multi Jet Fusion Works

After printing, parts go through a controlled cooling cycle, followed by powder removal, bead blasting, and any required post-processing. Multi Jet Fusion builds parts layer by layer from a fine polymer powder. Each layer is created in a few precise steps:

Powder Layer Application

A thin, uniform layer of polymer powder is spread across the build platform.

Fusing and Detailing Agents

Inkjet arrays selectively deposit a fusing agent where the part should solidify, and a detailing agent around the edges for sharp definition.

Infrared Fusion

The entire layer is exposed to infrared energy, fusing the treated powder into a solid cross-section.

Layer-by-Layer Build-Up

The platform lowers, and the cycle repeats until the full part geometry is complete.

Matte Finish

Delivers smooth uniform surface ideal for professional functional and aesthetic industrial parts

Color Dyeing

Provides deep consistent coloring enhancing appearance durability and product presentation quality

Precision Smoothing

Improves surface texture reducing roughness for better feel and refined final output

Applications of HP Multi Jet Fusion Technology

Automotive

Air duct and ventilation systems
Sensor housings and brackets
Interior trim and clip components
Under-the-hood functional parts
Low-volume production and pre-series components
Customized aftermarket parts

Aerospace & Defense

Lightweight structural components
Cable routing and conduit systems
UAV and drone body parts
Equipment housings and protective covers
Field-test and validation parts
Custom mounting brackets

Industrial Manufacturing

Jigs, fixtures, and assembly tools
Robotic end-of-arm tooling (EOAT)
CNC and welding clamping aids
Production-line guides and locators
Wear-resistant functional parts
Replacement parts for legacy machinery

Medical & Healthcare

Prosthetics and orthotic devices
Surgical guides and anatomical models
Custom medical equipment housings
Wearable medical devices
Skin-contact parts (PA 12 / PA 12 W)
Rehabilitation and assistive devices

Consumer Goods & Lifestyle

Footwear midsoles and insoles (TPU)
Sports and protective gear
Custom wearables and accessories
Eyewear frames
Home appliances and décor
Promotional and branded items

Lighting & Electronics

Lamp bodies and lighting fixtures
Connector housings and cable channels
Sensor enclosures
Electronics protective casings
Heat-resistant component holders
Smart-device prototypes

Mechanical Engineering

Snap-fit assemblies
Threaded and screw-mount housings
Lattice-structured lightweight parts
Multi-component assemblies printed in one piece
Internal channel and manifold parts
Complex geometries impossible with molding

Energy & Utilities

Technical Specifications Of MJF Printing

Technical Specifications

Build Volume

Large build capacity allows production of multiple parts efficiently within a single printing cycle.

High Precision

Fine layer thickness and tight tolerances ensure accurate dimensions and consistent detail across all printed parts.

Fast Turnaround

Optimized production process enables quick delivery times depending on batch size and project complexity.

Finishing Options For Printed Parts

Right out of the printer, MJF parts have a slightly grainy, light-gray surface. To match the requirements of each project, we offer multiple post-processing options:

Bring Your Project to Life with Zenis

Whether you need a single prototype or a production batch of several thousand units, our team can guide you from design optimization through final delivery. Send us your CAD file, and we’ll provide a quotation along with engineering recommendations to make the most of MJF technology.

Contact Us

Quote Our Project

Reach out to discuss your 3D printing requirements and project goals. We provide advanced solutions using MJF, FDM, and SLA technologies, along with expert support for prototyping, manufacturing, and technical part development.