March 3rd, 2026
ACMI has acquired the system to support high-end aerospace and defense manufacturing requirements.
The American Center for Manufacturing and Innovation (ACMI) plays a vital role in reinforcing the United States’ industrial base through targeted investments in emerging businesses across critical sectors.
First Worldwide: ACMI Acquires the AMCM M 8K
ACMI is the first organization worldwide to acquire the AMCM M 8K system, marking a significant milestone in large-format metal additive manufacturing. With the AMCM M 8K, ACMI enables its supply chain partners and customers to manufacture large-volume components on a platform built on proven technology, enhanced by intelligent new features such as AirSword™ gas flow technology, Dynamic Scan Fields, and advanced beam shaping solutions. Together, these innovations set new benchmarks for quality, productivity, and process reliability.
Defining a New Category in Large-Frame Metal Additive Manufacturing
The AMCM M 8K, developed by AMCM - the customization specialist of EOS – defines an entirely new category of large-frame laser powder bed fusion (LPBF) metal additive manufacturing. Engineered specifically for high-end aerospace and defense applications. At its core, the DNA of the M 8K combines an expansive build volume of 800 × 800 × 1,200 mm with uncompromising precision, setting a new standard for ultra-large LPBF production.
Powered by eight US-made 1.2 kW nLIGHT lasers, advanced optical systems, and state-of-the-art thermal management, the AMCM M 8K delivers exceptional precision and stability during extended build jobs. Its innovative cooling architecture and optimized process gas flow ensure consistent part quality, even when processing demanding materials such as copper alloys. Designed for both scalability and performance, the system enables the efficient production of complex, mission-critical components including rocket engines and missile structures.
Precision Meets Four Tons of Powder
With the AMCM M 8K, AMCM has successfully transferred the renowned precision of its M 4K system to a significantly larger platform. The machine moves up to four tons of powder along the Z-axis with maximum accuracy. Eight lasers operate simultaneously across the powder bed with the same high level of precision, enabling the creation of highly intricate structures even in the largest and most demanding components.
Enabling Ultra-Large LPBF with AirSword™ Gas Flow Technology
Scaling LPBF technology to build volumes of one meter and beyond has long posed challenges, particularly in maintaining consistent gas flow and part quality. While alternative additive manufacturing methods such as Directed Laser Deposition offer large build sizes, they often do so at the expense of precision.
AMCM’s breakthrough solution is AirSword™, implemented in the AMCM M 8K and the upcoming M 10K. AirSword™ is a precision-engineered gas flow system designed specifically to address the airflow challenges of ultra-large LPBF builds. It ensures uniform, multi-layered gas flow across the entire building area, eliminates laser-smoke interaction for clean and reliable processing, protects optics and laser paths during long-duration jobs, and reduces maintenance requirements while increasing system uptime for high-volume production.
