• EOS M 400-4, DMLS, 3D printing, metal, powder, laser | © EOS
    Metal 3D Printer

    EOS M 400-4 Series
    The Ultra-Fast Four-Laser System

    for the Additive Manufacturing of High-Quality Metal Parts


Up to 4x more productivity 


Four precise 400-watt fiber lasers


Build volume of
400 x 400 x 400 mm

Support-Free 3D Printing

Explore the Power of
Smart Fusion

Real time process control - layer by layer



With a build volume of 400 x 400 x 400 mm and four lasers, the EOS M 400-4 platform achieves up to four-times higher productivity, making it perfect for industrial applications. Four precise 400-watt fiber lasers work over an area of 250 x 250 mm each, with 50 mm overlap.


With its intuitive user interface, flexible software tools and diverse accessories, the system meets every usage requirement of an industrial production environment. Highly automated procedures and processes guarantee ease of operation. 


A broad portfolio of materials is available, from light metals to stainless steel, tool steels and super alloys. Any process from the EOS M 290 can be transferred to the EOS M 400-4 to achieve equivalent part properties.

3D printed turbine blade by Siemens

Technical Data

EOS M 400-4

Download Factsheet | pdf | 279,2 KB
Construction Volume 400 x 400 x 400 mm (15.8 x 15.8 x 15.8 in) (height incl. build plate)
Laser Type Yb-fiber laser; 4 x 400 W
Precision Optics 4 F-theta-lenses; 4 high-speed scanners
Scan Speed up to 7.0 m/s (23 ft/s)
Focus Diameter approx. 100 µm (0.004 in)
Power Supply 3 x 50 A
Power Consumption max. 45 kW / typical 22 kW
compressed air supply 7,000 hPa; 20 m³/h (102 psi; 706 ft³/h)"
Machine Dimensions (W x D x H) 4,181 x 1,613 x 2,355 mm (164.6 x 63.5 x 92.7 in)
Recommended Installation Space min. 6.500 x 6.000 x 3.300 mm (256 x 236 x 130 in)
Weight approx. 4,835 kg (10,659 lb)
Software EOSPRINT 2, EOSTATE PowderBed, EOSCONNECT Core, EOSCONNECT MachinePark, Materialise Magics Metal Package and modules

Case Studies | Customer References EOS M 400-4 Luxurious Stainless Steel Jewelry

Bring a goldsmith’s creation to life by printing an intricate and luxurious life-size 3D lattice face mask and palms, to which jewels could be micro welded.

- One3D AM Engineers
- EOS M 400-4
- EOS StainlessSteel 316L

- Design, print and post-processing of complex parts in just 5 days
- Complete design freedom for artist and One3D engineers
- Rapid printing of 207 cm3 build volume enabled highly detailed and considered 3D lattice palms ready for post-processing

53_individual_production Metal Materials for the EOS M 400-4

For the EOS M 400-4, a broad portfolio of materials is available, from light metals to stainless steel, tool steels and super-alloys.

more about metal materials

11_modularity Material Management Metal Materials

The EOS powder handling portfolio offers a wide range of products for advancing and sieving metal powder. The products have different degrees of automation, are suited for small or large powder quantities and can be used flexibly and independently of the respective EOS metal system.

13_automation Software

Interested? Request your personalized offer today.