Selective laser melting (SLM)

The technology stands out mainly as a method to create complex-shape metal parts that are difficult to process using conventional procedures. A metallic powder of a prescribed granularity is spread out on each layer of the model’s printing area and selectively melted using laser. This creates an interlayer bond between the current and the preceding layer; this process repeats itself up to the final shape. This great benefit of this technology is that it enables the creation of any complex structures.

TruPrint 1000

One of the main assets of this printer is a small printing area which enables a relatively low-cost operation, and makes it easier to cover the whole printing platform with parts for printing. This leads to a higher material efficiency. The printer is equipped with one 200W laser device.

Product examples:

Technical parameters:

Building space 98 x 98 x 100 mm
Layer thickness optional in the range 10 µm – 50 µm
Beam diameter 55 µm
Available materials Stainless steel SS630
  Tool steels 1.2709
  Aluminium alloys AlSi10Mg
  Nickel-based alloys In-718
  Cobalt-Chrom CoCr
  Copper-based alloys CuNi2
  Titanium-based alloys Ti6Al4V ELI


This machine can produce metal parts with minimum porosity. It is equipped with one laser of the Yb:YAG with the maximum power of 400W.

Product examples:

Technical parameters:

Bulding space280 x 280 x 365 mm
Layer thicknessoptional in the range 20 µm – 70 µm
Beam diameter80 µm – 115 µm
Available materialsTitanium alloysTi6AI4V, Ti6AI7Nb
Stainless steels1.4404 (316L), 1.4540 (15-5PH),
Tool steels1.2344 (H13), 1.2709
Aluminium alloysAISi12, AISi10Mg, AISi 7Mg, AISi9Cu32
Nickel-based alloysInconel 718, Inconel 625, Inconel 939, Hastelloy X

EOS M 290

EOS M 290 can work with metallic powders that range from aluminium alloys to steel and titanium alloys. The printing machine offers an industrial solution, incorporating a sifting station, which reduces waste materials and the costs of labour.  The laser achieves a power of 400 W.

Technical parameters:

Building space250 x 250 x 325 mm
Layer thicknessoptional in the range 20 µm – 60 µm
Beam diameter100 µm
Available materialsTitanium alloysTi6AI4V
Steels1.4404 (316L), MaragingSteel MS1
Aluminium alloysEOS Aluminium AlSi10Mg
Cobalt-Chrom alloysMP1
Nickel-based alloysInconel 718, Inconel 625, EOS NickelAlloy HX

Schematic images of 3D printing technologies are used with the permission of Prof. Steffen Ritter.