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3D printing service · HP Multi Jet Fusion

Nylon parts by the thousand, on HP Multi Jet Fusion

Production runs, prototypes and bespoke parts in PA12 or PA11 nylon, from our own machines in Cheshire. Thousands of parts in a single twelve hour build, with no tooling to pay for first.

12 hours
for a full build
From 2 days
nylon parts back
4 finishes
from raw grey to dyed and smoothed
HP Jet Fusion 4200 3D printer

How the process works

An inkjet printhead deposits droplets of fusing and detailing agents onto a fine layer of nylon powder. Heat lamps then activate the agents, fusing the powder into a solid layer. The next layer goes down on top.

The powder supports the part as it builds, so complex geometries and internal channels need no support structures. Parts come out accurate, detailed and isotropic. They have the same strength in X, Y and Z.

Parts can be left their natural grey or dyed black. They can also be smoothed with vibro finishing.

At a glance

Build volume
380 × 380 × 284 mm
Min feature size
0.5 mm
Build layer
80 microns
Full build
12 hours
Materials
PA12 and PA11 nylon
Multi Jet Fusion build volume

What MJF gets used for here

  1. 01

    Low-volume production

    Thousands of end-use parts in one build, with no tooling cost and a lower cost per part.

  2. 02

    Bespoke parts

    Product variations, or parts that are each different, produced at volume.

  3. 03

    Prototypes

    Accurate, detailed prototypes with a fast turnaround to cut development time.

  4. 04

    Orthotics

    Insoles, AFOs, wrist braces and helmets in batches, in PA12 or PA11.

Four finishes

Ordered by lead time, because that is usually what decides it. All four start from the same printed part.

Raw grey

4–6 days lead time

Raw grey

No further treatment. Loose powder is removed with DyeMansion equipment, leaving crisp parts with a grain-like texture and mottled grey colour.

Dyed black

5–7 days lead time

Dyed black

Dyed deep black for a tough, durable, scratch-resistant finish.

Vibro smoothed

6–8 days lead time

Vibro smoothed

Smoothed in a vibro tumbling process. The parts keep their raw grey colour.

Dyed and smoothed

7–9 days lead time

Dyed and smoothed

A smooth vibro-polished surface in a deep, scratch-resistant black.

Printed here, by sector

Orthotics
Orthotics
Consumer products
Consumer products
Dental models
Dental models
Industrial ducting
Industrial ducting
Architectural models
Architectural models
Sculpture
Sculpture
Footwear
Footwear
Automotive
Automotive

Two nylons

Both run on our own HP 3D printers. Not sure which? Tell us what the part does.

PA12 nylon

PA12 nylon

Strong, durable and accurate. Isotropic properties in X, Y and Z. The right choice when many thousands of parts are needed.

Tensile strength
48 MPa
Elongation at break
20%
Full specification →
PA11 nylon

PA11 nylon

Strong yet flexible, with high impact resistance and elongation at break. Snap fits, insoles, sports goods and living hinges.

Tensile strength
50 MPa
Elongation at break
50%
Full specification →

Jobs we have printed

Triathlon bike storage box

Triathlon bike storage box

An end-to-end job using 3D scanning and printing to make a storage box for a triathlon racing bike.

Material
PA12 nylon
Finish
Black dye
Quantity
100
Delivery
3–5 days
Read the case study →
Archery grips for Great Britain

Archery grips for Great Britain

Digitising a custom archery grip and printing it in PA12 nylon.

Material
PA12 nylon
Finish
Black dye and vibro smooth
Quantity
5
Delivery
3–5 days
Read the case study →

FAQ

Not answered here?

Ask the engineers who run the machines. We answer the same working day.

Should I choose PA12 or PA11?

PA12 is the choice for strong, quality parts at the lowest cost per part. PA11 offers superb impact resistance as well as elongation at break, so it suits snap fits, insoles, sports goods and living hinges.

What finishes can I choose?

Four: raw grey, dyed black, vibro smoothed, or dyed black and vibro smoothed. Raw parts are cleaned of loose powder using DyeMansion technology. They have a grain-like texture and mottled grey colour.

How long will my MJF parts take?

It depends on the finish: 4 to 6 days for raw grey, 5 to 7 days for dyed black, 6 to 8 days for vibro smoothing. Dyed black and vibro smoothed takes 7 to 9 days.

How big can an MJF part be and how fine can the detail go?

The build volume is 380 x 380 x 284 mm, the minimum feature size is 0.5 mm and the build layer is 80 microns.

How many parts can you print at once?

Many thousands of parts can be made in a single 12 hour build, which is why MJF suits volume production runs of end-use parts.

Does MJF need support structures?

No. The HP Jet Fusion process is self-supporting, so highly detailed parts with complex internal geometries can be built without support structures.

Are MJF parts equally strong in every direction?

Yes. MJF nylon parts have isotropic properties in the X, Y and Z directions. They also have excellent temperature and chemical resistance. PA12 nylon

Are MJF parts good enough for end use, or just prototypes?

Both. For example, after prototyping we put a first batch of 100 triathlon bike storage boxes into production in PA12 nylon on HP MJF. Triathlon bike storage case study

Send us the part

Upload the file to our instant quote, choose the material and the quantity and the price comes back on screen. Order it there and then.

  1. A price straight awayNo waiting for a reply: the quote is worked out from the file itself.
  2. We check the fileBefore anything is printed, so a bad mesh never reaches a machine.
  3. No file yet?Ring or email with a photograph or a description and an engineer will help.
Files we take
STL, STEP, IGES, OBJ, 3MF
Largest part
800 × 800 × 550 mm
Nylon on MJF
From 2 days
Resin on SLA
From 7 days

Get an instant quote

  1. Upload your 3D file
  2. Choose the material and how many
  3. See the price and order online
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Tell us what you work on and an engineer will set it up on the right kit.

Want to judge it on your own part? Upload your file to the instant quote and order a print in the material you are weighing up.

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