EOS M 400

Additive Manufacturing System for the Industrial Production of High-Quality Large Metal Parts.

With a building volume of 400 x 400 x 400 mm, EOS M 400 allows the production of large metal parts on an industrial scale – directly from CAD data and with no need for tools.


Proven quality, high productivity

  • Increased productivity due to 1 kW laser
  • Reduced non-productive time due recoating from both sides
  • Reduced filter costs due to new recirculating filter system with automated cleaning function

Modular platform

  • EOS M 400 consists of a Process Station and a Setup Station. This modular approach facilitates the easy integration of future innovations.

Enhanced monitoring

  • Extensive monitoring features take quality management to a new level.

Sophisticated software

  • Job preparation and calculation is separated from the building process: the job file prepared at your
    desk is transmitted via the network; the system focusses entirely on building parts.

Improved usability

  • EOS M 400 supports the production of complex metal parts. Nonetheless, the system is extremely
  • Quick and easy operation via touch screen.

Broad material portfolio

  • EOS offers an increasing number of metal materials for the EOS M 400 system. With the corresponding ParameterSets, the system produces parts with standardized part property profiles (PPPs).
  • The ParameterEditor enables you to modify parameters to meet your individual requirements.

 Technical Data


EOS M 400

Building volume

400 mm x 400 mm x 400* mm (15.8 x 15.8 x 15.8 in)
(*including building platform which is typically 40 mm (1.6 in) thick)

Laser type Yb-fibre laser; 1 kW
Precision optics F-theta-lens
Scan speed up to 7.0 m/s (23 ft/s)

Focus diameter

approx. 90 µm (0.0035 in)

Power supply

50 A

Power consumption max. 20.2 kW / typical 16.2 kW
Nitrogen generator integrated

Compressed air supply

7,000 hPa; 20 m3/h (102 psi; 706 ft3/h)

Dimensions (W x D x H; Process Station (with Periphery Station) and Setup Station)


4,181 mm x 1,613 mm x 2,355 mm (164.6 x 63.5 x 92.7 in)

Recommended installation space

min. 6.5 m x 6 m x 3.3 m (256 x 236 x 130 in)


approx. 4,635 kg (10,218 lb)

Data preparation


EOSPRINT; EOS RP Tools; EOSTATE; Materialise Magics RP with SG+ and further modules

CAD interface

STL, optional: converter for all standard formats