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Efficiency Meets Precision: A Look Into the HP MJF 4200 Series 3D Printer

  • Pir Arkam
  • August 11, 2023

3D printing stands at the intersection of imagination and reality, a groundbreaking technology that is reshaping the world of manufacturing as we know it. With its ability to materialize virtual blueprints into tangible objects, it’s much more than a technological innovation—it’s a creative revolution.

From the intricacies of custom jewelry to the complexities of automotive parts, 3D printing is opening up new frontiers in countless industries. And one particular tool that has been a stand-out performer in this arena, and thus a preferred tool among rapid prototyping companies, is HP’s Multi Jet Fusion (MJF) 4200 Series 3D Printer.

What is the HP MJF 4200 Series 3D Printer?

The HP MJF 4200 Series Printer is an industrial-grade, additive manufacturing machine. This printer leverages HP’s proprietary Multi Jet Fusion technology to create high-quality, durable parts and prototypes from various 3D printing materials.

Its ability to produce parts with complex geometries and intricate details makes it an excellent choice for product development. It empowers designers and engineers to iterate and refine their designs quickly, reducing the lead time from concept to reality.

One of the distinguishing features of the HP MJF 4200 Series 3D Printer is its ability to achieve predictable print times and parts with first-rate isotropy. This means that the printer can produce parts with uniform properties in all directions, a critical factor in the strength and functionality of printed objects.

Additionally, the printer offers a range of print modes tuned for different properties, including mechanical, functional, aesthetic characteristics, accuracy and speed.

The Power of MultiJet Fusion Technology

The cornerstone of the HP MJF 4200 lies in its use of MultiJet Fusion Technology. To unravel the mechanics of this technology, let’s draw an analogy with construction work.

  • Think of Multi Jet Fusion as constructing a building floor by floor. The process begins by laying down a thin layer of “building material” which, in this case, is a fine plastic powder. This is akin to preparing a construction site with a solid foundation.
  • Next, a special liquid (called a fusing agent) is applied wherever the “building” needs to be solid. This is similar to how a construction crew pours concrete where they want walls or pillars to stand.
  • To maintain the delicate balance and sharp edges of the design, another liquid (a detailing agent) is applied. This can be compared to how a construction crew uses forms and molds to shape the concrete.
  • With the concrete poured and the molds in place, the stage is now set for everything to harden and take shape. In MJF, this is achieved by applying heat, causing the plastic particles to fuse into a solid layer. This process is repeated, layer by layer, much like constructing a multi-story building floor by floor, until the final 3D object is complete.

So, in essence, MJF is like being the architect, engineer, and construction crew all at once, building complex structures quickly and efficiently.

HP MJF 4200 Specifications

The HP MJF 4200 boasts impressive specifications. With a build volume of 380 mm x 284 mm x 380 mm, it’s well-equipped for creating large-scale models and prototypes.

In terms of precision, the printer offers a layer thickness of 80 microns and a print resolution of 1200 dpi. The high resolution, paired with the fine layer thickness, ensures a remarkable level of detail and a smooth surface finish in the final product every time.

Moreover, the printer’s build speed is noteworthy, clocking in at 4115 cm3 per hour, thereby drastically diminishing manufacturing turnaround times.

Versatility in Applications

The versatile nature of the HP MJF 4200, combined with its swift, meticulous performance, makes it a top choice for a wide range of industries. Here are some of its most common applications:

1. Rapid Prototyping

As mentioned, the HP MJF 4200 can transform an initial concept into a functional prototype within a few days, potentially saving weeks in product development timelines. And should there be a need for modifications, iterations can be made more quickly and economically.

But the capabilities of the HP MJF 4200 don’t end at prototyping. It also excels in short-run manufacturing, creating unique, one-off products, or even full-scale final part production.

2. Medical Industry

The medical industry has demanding requirements for precision and customization. Coupled with detailed 3D scanning, the HP MJF 4200 can help medical professionals build bespoke dental appliances, prosthetics and orthotics, all custom-fitted for each patient’s needs.

3. Automotive Industry

In the automotive industry, the HP MJF 4200 can be used to develop complex car parts such as gears, jigs, fixtures, dashboards, manufacturing aids and other customized components. Its ability to print with high-strength materials and maintain precise tolerances makes it an excellent choice for automotive applications.

4. Visual Merchandising

The HP MJF 4200 3D printer can introduce a new element to visual merchandising. It allows retailers to create product mockups, life-sized sculptures, and even interactive store displays with an unprecedented level of realism.

Take a jewelry store as an example. Using this marvel of modern technology, retailers can create replicas of their jewelry collection to adorn their window displays. Having a tactile experience with these replicas can be a major selling point for many shoppers.


The HP MJF 4200 Series 3D Printer exemplifies the perfect blend of power and finesse. And here at Proto21, we’re proud to employ this beast of a machine in our 3D printing services. Contact us today to know more about how our services can fast-track your design and product development needs.

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3D Printing is already shaking our age-old notions of what can and can’t be made.

- Hod Lipson

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