Mechanicals
EOS EOS M 400-4
The EOS EOS M 400-4 is an industrial-grade additive manufacturing system that bridges the gap between prototyping and serial production. Designed for engineering teams in aerospace, automotive, healthcare, and consumer goods who demand accuracy, material performance, and process reliability.
The EOS M 400-4 supports a wide range of engineering-grade materials including high-temperature polymers, filled composites, and flexible elastomers. The heated build chamber maintains consistent thermal conditions throughout the print, eliminating warping and delamination on large, complex geometries.
Integrated slicing software with support optimisation and build simulation reduces material consumption and post-processing time. Remote monitoring and automated material handling keep the machine productive around the clock.
Specifications shown are indicative. Always verify with the manufacturer or a verified supplier before making purchasing decisions. Mechanicals.xyz is an independent comparison platform and is not affiliated with EOS.
General
| Brand | EOS |
|---|---|
| Model | EOS M 400-4 |
| Category | Industrial 3D Printers |
| Year Introduced | 2022 |
Commercial
| Price Type | Price on Request |
|---|---|
| Overall Rating | 9.9 / 10 |
Technology
| Print Technology | MJF (Multi Jet Fusion) |
|---|---|
| Layer Resolution | 0.05 mm (50 µm) |
Build
| Build Volume | 800 × 500 × 600 mm |
|---|---|
| Dimensional Accuracy | ±0.1% (min ±0.2 mm) |
| Heated Build Chamber | Yes, up to 200°C |
Materials
| Supported Materials | PA12, PA12-GB, TPU, PA11 |
|---|
Connectivity
| File Formats | STL, STEP, OBJ, 3MF, AMF |
|---|
Estimate the 5-year total cost of owning this machine including energy and maintenance costs.
EOS M 400-4: from prototype to production-ready parts
Using the EOS EOS M 400-4 for tooling fixtures, end-of-arm tooling, and low-volume production parts. Dimensional accuracy on our engineering polymer parts is consistently within ±0.15 mm. The heated chamber made a measurable difference on our larger PC parts — warping is eliminated. Build preparation software is intuitive and support optimisation is genuinely good. ROI positive within 14 months versus our previous outsourcing spend.
EOS M 400-4: from prototype to production-ready parts
Using the EOS EOS M 400-4 for tooling fixtures, end-of-arm tooling, and low-volume production parts. Dimensional accuracy on our engineering polymer parts is consistently within ±0.15 mm. The heated chamber made a measurable difference on our larger PC parts — warping is eliminated. Build preparation software is intuitive and support optimisation is genuinely good. ROI positive within 14 months versus our previous outsourcing spend.
EOS M 400-4: from prototype to production-ready parts
Using the EOS EOS M 400-4 for tooling fixtures, end-of-arm tooling, and low-volume production parts. Dimensional accuracy on our engineering polymer parts is consistently within ±0.15 mm. The heated chamber made a measurable difference on our larger PC parts — warping is eliminated. Build preparation software is intuitive and support optimisation is genuinely good. ROI positive within 14 months versus our previous outsourcing spend.