M 400-4

The Ultra-Fast Four-Laser System

System Data Sheet
Key Features

Ultra-Fast, Ultra-Productive: Our Flagship Four-Laser Machine

With four 400-watt lasers and a 400 x 400 x 400 mm build volume, the EOS M 400-4 is the ultimate productivity platform for industrial applications.


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. 

Quality & Versatility

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.

The ultra-fast quad-laser 3D printing system for metal parts EOS M 400-4

Technical Data
Technical Data
Build Volume 400 x 400 x 400 mm (15.7 x 15.7 x 15.7 in)
Laser Type Yb-fiber laser; 4 x 400 W
Presicion Optics 4 F-theta-lens(es); 4 High-speed scanner(s)
Scan Speed up to 7.0 m/s (23.0 ft/s)
Focus Diameter approx. 100 µm (0.00394 in)
Power Supply 3 x 50 A
Power Consumption max. 45.0 kW / typical 22.0 kW
Compressed Air Supply 7 Bar; 20 m³/h (102 psi; 706 ft³/h)
Machine Dimensions 4181 x 1613 x 2355 mm (164.6 x 63.5 x 92.7 in)
Recommended Installation Space min. 6500 x 6000 x 3300 mm (255.9 x 236.2 x 129.9 in)
Weight approx. 4835 kg (10659 lbs)
Materials & Processes

Materials & Processes for EOS M 400-4


A broad portfolio of materials is available for the EOS M 400-4, 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.  Explore compatible materials and processes below.

Get Inspired

Get Inspired

3d printed metal part for space industry

3D Printing for Ariane 6 Propulsion Module

Success Story | ArianeGroup

Thanks to EOS technology, ArianeGroup has succeeded in taking this to a whole new level: Instead of 248 elements, the injector head of a rocket engine of a future upper stage propulsion module now counts just one component

EOS 3D Printing Applications Siemens Turbine Blade

3D Printing for High Performance Industrial Gas Turbines

Success Story | Siemens 

Innovation for maintenance of high performance industrial gas turbines. Siemens industrial turbomachinery counts on EOS 3D printing technology and customized services.


Expand Your AM Knowledge & Skills

Building process from a Metal Machine

From Zero to Hero in Metal AM

On-Demand Webinar

Explore the limitless possibilities in metal additive manufacturing.  This webinar offers insights into various metal AM technologies, their strengths and weakness and suitability for production.

AM Data Preparation Metal


Optimize production quality and efficiency with our certification data preparation course for metal applications. Learn how to implement metal-specific data preparation best practices, recognize main challenges for your applications and exchange ideas with real AM experts


Software Solutions that Scale to Your Needs

EOS Build & Build+

CAM software for optimizing and creating build jobs for 3D printing, fullly integrated with Materialise Magics, Siemens NX and other software.

EOS Smart Monitoring

Software for real-time monitoring of 3D printing build jobs and quality assurance at every step of the process.

EOS Data Insights

Production monitoring and automation software makes it possible to take advantage of all your machine and production data in real time.

EOS System Suite

Countless additive manufacturing possibilities - in one customizable software package.

EOS Technical Service

From getting started to sustainable success

We always focus on your success. From a certified start in the 3D printing process to qualified system maintenance and globally available support with a convenient service portal which provides you with information around your machine and service tickets 24/7.

You’ll find the right service package among the various technical services we offer. Our EOS SystemCare Program is tailored to your specific requirements.

Service Inspection infront of an EOS system