Mult jet fusion (MJF) is a 3d printing process developed by HP. This process is ideal for manufacturing end products, prototypes, design models and complex geometries in high and low numbers. The details are printed by applying an adhesive to a thin layer of plastic powder which is then sintered using a heating element. This results in gray or white details with isotropic material properties and a grainy surface structure that can be dyed into black, gray and various colors. The end result from MJF is very similar SLS Printing and both of these processes share the benefits of being able to cost-effectively scale up volume manufacturing. If the complexity of the details is low and volume manufacturing is not of interest, you should also investigate FDM Printing. With MJF always produces parts with 100% infill, i.e. completely solid, and it is not possible to adjust it like in an FDM printer. For thick geometries you need to modify the model so that it has a wall thickness of 3 mm, is empty inside and has one or more holes to empty the powder from the void. Loose powder is removed to the best of our ability using compressed air and blasting, but some powder may remain, especially in certain tight spaces.
Are you unsure which process suits your purpose best? Then click here!
| Process data | Value |
|---|---|
| Standard tolerance | ± 0.3% (minimum limit ±0.3 mm) |
| Layer thickness | 0.08 mm |
| Minimum wall thickness | 0.8 mm |
| Minimal detail | 0.8 mm |
| Largest component size | 380x380x280 mm (Nylon 12 standard) |
*the above data depends on the choice of material.
PA12 Standard is what our customers order the most. It is suitable for most purposes when it comes to functional prototypes, design models and mass production. The material is dark grey, which when dyed in black or gray gives a nice appearance with desirable surface properties in the form of scratch resistance. Compared to white SLS-manufactured PA12 which is dyed black, scratches in MJF-manufactured PA12 become dark gray instead of white.
PA12 Standard untreated
PA12 Standard incolored black and gray
| Material data | Unit | Value |
|---|---|---|
| Tensile strength (x/y/z) | MPa | 48/48/48 |
| E-module (x/y/z) | MPa | 1700/1700/1800 |
| Flexural strength | MPa | 40 |
| Flexural modulus | MPa | 1600 |
| Charpy impact test (23°C) | kJ/m² | 52 ± 2 |
| Charpy notched impact test (23°C) | kJ/m² | 4.5 ± 0.1 |
| Elongation at break (x/y/z) | % | 20/20/15 (± 2) |
| Shore D Hardness | – | 74 ± 2 |
| Density | g/dm³ | 1010 |
| Heat resistance temperature (1.82 MPa) | °C | 95 |
Like PA12 Standard, PA12 White is suitable for most purposes when it comes to functional prototypes, design models and series production. The only difference to PA12 Standard is that PA12 White is white, which makes it possible to dye it in different colors. PA12 White is off-white and can be perceived as a little gray. Check out PA12 for SLS for an even whiter impression.
PA12 White untreated
PA12 White dyed red, blue, green and yellow
| Material data | Unit | Value |
|---|---|---|
| Tensile strength (x/y/z) | MPa | 48/48/48 |
| E-module (x/y/z) | MPa | 1700/1700/1800 |
| Flexural strength | MPa | 40 |
| Flexural modulus | MPa | 1600 |
| Charpy impact test (23°C) | kJ/m² | 52 ± 2 |
| Charpy notched impact test (23°C) | kJ/m² | 4.5 ± 0.1 |
| Elongation at break (x/y/z) | % | 20/20/15 (± 2) |
| Shore D Hardness | – | 74 ± 2 |
| Density | g/dm³ | 1010 |
| Heat resistance temperature (1.82 MPa) | °C | 95 |
Polypropylene (PP), also known as polypropylene, is one of the most widely used polymers globally, acclaimed for its outstanding performance, surprisingly lightweight nature and ability to withstand the most aggressive chemical agents. Its prevalence across various industries serves as proof of its versatility and the exceptional mechanical and chemical properties that distinguish it. This polymer has established itself as a fundamental pillar in a wide variety of industrial sectors, thanks to its outstanding resistance to mechanical loads and chemical corrosion, making it a material of choice for many applications.
PP untreated
| Material data | Unit | Value |
|---|---|---|
| Tensile strength (x/y/z) | MPa | 48/48/48 |
| E-module (x/y/z) | MPa | 1700/1700/1800 |
| Flexural strength | MPa | 40 |
| Flexural modulus | MPa | 1600 |
| Charpy impact test (23°C) | kJ/m² | 52 ± 2 |
| Charpy notched impact test (23°C) | kJ/m² | 4.5 ± 0.1 |
| Elongation at break (x/y/z) | % | 20/20/15 (± 2) |
| Shore D Hardness | – | 74 ± 2 |
| Density | g/dm³ | 1010 |
| Heat resistance temperature (1.82 MPa) | °C | 95 |
PA12 Standard Economy: PA12 Standard is also available as PA12 Standard Economy, which is the same material as PA12 Standard, but the printer settings are slightly different, which results in faster and cheaper prints but with slightly lower strength. PA12 Standard Economy is very well suited for prototypes, design models and even series production and, like PA12 Sandard, can be colored in black or grey.
PA12 Standard Economy untreated
PA12 Standard Economy incolored black and gray
TPU 90A is a thermoplastic elastomer based on polyurethane and is a thermoplastic variant of polyurethane rubber. TPU 90A is very reminiscent of the softness and form strength of car tires. This material is perfect for prototypes of rubber parts or functional components where high demands are placed on abrasion resistance, wear resistance and elasticity.
TPU untreated
TPU colored black
| Material data | Unit | Value |
|---|---|---|
| Tensile strength | MPa | 8 |
| E-module | MPa | 80 |
| Flexural modulus | MPa | 75 |
| Izod impact strength (notched 23°C) | kJ/m² | no crime |
| Izod impact strength (notched -10°C) | kJ/m² | 45 |
| Elongation at break | % | 200 |
| Fatigue 100k cycles -10°C (ASTM D1052 methode A) | No cracking | |
| Shore A Hardness | – | 88 |
| Density | g/dm³ | 1100 |
| Melting temperature | °C | 120-150 |
Values above are approximate and actual values may vary.
PA11 is a bio-based that is generally better than PA12 with higher strength, impact resistance and ductility. PA11 is suitable for slightly more demanding applications in small-piece manufacturing, contract manufacturing and series manufacturing. The material is dark grey, which when dyed in black gives a nice look and a more durable surface. Compared to PA12, PA11 is a bit more expensive.
PA11 untreated
PA11 incolored black and gray
| Material data | Unit | Value |
|---|---|---|
| Tensile strength (x/y/z) | MPa | 48/48/48 |
| E-module (x/y/z) | MPa | 1700/1700/1800 |
| Flexural strength | MPa | 40 |
| Flexural modulus | MPa | 1600 |
| Charpy impact test (23°C) | kJ/m² | 52 ± 2 |
| Charpy notched impact test (23°C) | kJ/m² | 4.5 ± 0.1 |
| Elongation at break (x/y/z) | % | 20/20/15 (± 2) |
| Shore D Hardness | – | 74 ± 2 |
| Density | g/dm³ | 1010 |
| Heat resistance temperature (1.82 MPa) | °C | 95 |
PA12-GB is glass-reinforced PA12 and is developed for applications that require higher stiffness than standard PA12 offers. PA12-GB is perfect for rigid fixtures, tools and enclosures. The material is dark gray which can be dyed into black or grey.
PA12-GB untreated
PA12-GB incolored black and gray
