EOS M400 SS304 Build Plate | M400 Steel Build Platform for Metal 3D Printing
$2,050
The M400 Steel Build Platform is a heavy-duty SS304 stainless steel build plate engineered for EOS M400 systems. Designed for large-format LPBF production, it delivers superior thermal stability, structural rigidity, and repeatable industrial metal 3D printing performance.
Need a build platform for a different printer model or custom dimensions?
Request a custom quote — we manufacture precision build plates and building platforms for most industrial metal AM systems.
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Material:
SS304 (AMS 5513)
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Platform:
M400
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Dimensions:
14.173×15.748×2.9 in, 360×400×73.66 mm
Need more than 200 build plates, express delivery or official request?
Request a quote✔ Custom & Made-to-Order Options — we can manufacture build platforms to your exact specifications, including non-standard sizes, materials, or thicknesses.
✔ Standard & Express Delivery — choose between regular shipping or expedited delivery for urgent projects.
✔ Bulk Order Discounts — special pricing and priority handling for orders of 50 units or more.
✔ End-to-End AM Expertise — as a full-service additive manufacturing integrator, we provide not only build plates but also testing, technology selection, and production support for optimized performance.
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Categories:
Materials, Metal Build Plates 3D Printing Materials, Standard
| Quantity | Price per plate 6-8 weeks delivery | Price per plate 2-3 weeks express delivery |
|---|---|---|
| 1-5 | $2050.00 | $3050.00 |
| 5-10 | $2009.00 | $2989.00 |
| 10-50 | $1948.00 | $2898.00 |
| 50-200 | $1200.00 | $2300.00 |
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Description
The M400 Steel Build Platform is engineered for manufacturers operating large-format metal 3D printing systems such as the EOS M400 and EOS M400-4. Built from high-grade SS304 stainless steel, this industrial building platform provides the thermal mass and mechanical rigidity required for demanding LPBF production environments.
Large components and extended build cycles require predictable thermal behavior. The M400 Steel Build Platform ensures consistent heat distribution across the full 360×400mm surface, minimizing distortion and maintaining dimensional accuracy during long manufacturing runs.
Precision CNC machining, stress-relief processing, and surface grinding guarantee flatness within tight tolerances. This stainless steel build platform supports stable recoater interaction, uniform powder spreading, and reliable first-layer fusion — critical factors in industrial metal additive manufacturing.
Designed as a direct OEM-compatible replacement, the M400 Steel Build Platform integrates seamlessly into EOS M400 systems without modification.
Key Features & Benefits
Large 360×400mm Build Surface
Maximize your EOS M400’s capacity to print larger parts or multiple components in one run, improving throughput and lowering cost per part.
Durable 304 Stainless Steel Construction
A cost-effective and reliable choice for printing with various metal powders, offering durability, corrosion resistance, and excellent performance across industrial applications.
Thick 76.2mm Thermal Mass
The substantial build plate thickness provides superior thermal stability, minimizing distortion and ensuring consistent layer quality during long production cycles.
Precision-Ground Flatness
Machined to tight tolerances to achieve a perfectly even surface, guaranteeing strong first-layer adhesion and reducing print failures or material waste.
Direct EOS M400 Compatibility
Engineered as a seamless OEM replacement, ensuring easy installation and reliable operation on EOS M400 and M400-4 systems.
Why Choose This Build Plate?
- Versatile for Multiple Materials: Compatible with steel-based and general-purpose metal powders.
- Reliable Performance: 304 stainless steel balances strength, heat resistance, and longevity.
- Optimized for Production: Consistent results at an economical price for high-volume manufacturing.
- Minimized Downtime: Designed for fast replacement and stable, long-term use.
Ideal For
- Industrial Manufacturing: Fixtures, tooling, and functional metal components.
- Service Bureaus: Affordable solution for large-scale, continuous 3D printing production.
- R&D and Material Testing: Great platform for developing and testing new metal powders.
- General Metal AM: Perfect for metal printing applications not requiring titanium-specific properties.
The EOS M400 SS304 Build Plate is your reliable, cost-effective metal printing platform — delivering stability, precision, and value for every build.
- Brand Additive Plus
- Country of origin USA
- Material SS304 (AMS 5513)
- Platform M400
- Package 1 plate, 10 plates, 5 plates, 50 plates
- Dimensions 14.173×15.748×2.9 in, 360×400×73.66 mm
Materials
This LPBF build platform is compatible with:
-Stainless steels (316L, 17-4PH)
-Tool steels
-Aluminum alloys
-Nickel-based alloys
-General-purpose titanium builds
The SS304 base material provides reliable performance across common industrial metal powders.
- SS304 (AMS 5513)
Frequently asked questions
How does the M400 Steel Build Platform improve thermal stability in large-format LPBF builds?
The M400 Steel Build Platform features a 76.2mm thick SS304 stainless steel structure that increases thermal mass and reduces temperature gradients across the 360×400mm surface. This minimizes residual stress, distortion, and base-layer deformation during extended LPBF production cycles.
What makes this M400 Steel Build Platform different from a standard EOS M400 build plate?
Unlike thinner build plates, the M400 Steel Build Platform is engineered specifically for large-format industrial production. Its increased thickness, stress-relieved machining process, and precision-ground surface provide greater structural rigidity and improved dimensional consistency compared to lightweight EOS M400 build plate alternatives.
Is the M400 Steel Build Platform suitable for high-stress metal additive manufacturing applications?
Yes. The stainless steel build platform is designed to withstand high thermal loads and mechanical stress generated during LPBF processing. It supports stable melt pool behavior and maintains flatness during long-duration builds.
How does the stainless steel build platform affect first-layer adhesion on EOS M400 systems?
The precision-ground surface of the M400 Steel Build Platform (±0.05 mm flatness tolerance) ensures uniform contact between powder and substrate. This improves first-layer fusion, reduces the risk of delamination, and enhances overall build reliability in EOS M400 metal 3D printing workflows.
Can the M400 Steel Build Platform be used as a direct OEM replacement EOS M400 build plate?
Yes. The M400 Steel Build Platform is engineered as a direct OEM-compatible replacement for both EOS M400 and M400-4 systems, ensuring seamless integration without hardware modification.
What materials are compatible with the M400 Steel Build Platform in LPBF applications?
This LPBF build platform is compatible with:
-Stainless steels (316L, 17-4PH)
-Tool steels
-Aluminum alloys
-Nickel-based alloys
-General-purpose titanium builds
The SS304 base material provides reliable performance across common industrial metal powders.
How does the 76.2mm thickness of the M400 build platform impact residual stress control?
The increased thickness of the M400 Steel Build Platform improves heat retention and distribution, reducing localized cooling rates. This helps control internal stresses and improves dimensional stability in large structural metal parts.
Is this metal building platform for EOS suitable for multi-part batch production?
Yes. The rigid structure and stable thermal behavior of the M400 Steel Build Platform make it ideal for multi-part production builds where consistent layer bonding and uniform heat distribution are critical.
Can the stainless steel build platform be resurfaced or re-machined?
Yes. The M400 Steel Build Platform can be resurfaced using precision machining procedures, extending operational lifespan and maintaining flatness for continued LPBF production.
How does the M400 Steel Build Platform compare to optimized lightweight build platforms?
While lightweight plates offer faster heat-up times, the M400 Steel Build Platform prioritizes dimensional stability and long-cycle reliability, making it better suited for large-format industrial manufacturing.
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