Stoke Space adds five MetalFab 420K systems for launch-vehicle production
Following a six-month beta test, launch startup expands additive manufacturing capacity with Additive Industries’ new four-laser metal-AM system
U.S. launch-vehicle developer Stoke Space has purchased five MetalFab 420K metal-additive manufacturing systems from Dutch equipment provider Additive Industries, following a six-month beta program at its Kent, Washington, facility. The beta installation, which began in May 2025, was used to produce components for Stoke’s fully reusable launch vehicle.
The MetalFab 420K features four full-field 1-kW lasers and is designed for high-throughput, industrial-grade production environments. Stoke, already a user of Additive Industries’ earlier MetalFab G2 systems, was selected for the beta program due to its advanced additive manufacturing capabilities and its requirements in the aerospace manufacturing sector.
“Additive manufacturing plays a critical role in our manufacturing and production efforts,” said Kunal Naik, Senior Manager, Additive Manufacturing at Stoke Space. “The MetalFab 420K gives us the productivity, precision, and reliability we need to move quickly from design iteration to flight hardware. Additive Industries has been a strong partner throughout the beta program, and this next step reflects our confidence in the system’s readiness for production.”
The multi-system order represents a shift for Stoke from prototyping to production-scale additive manufacturing of flight components. The adoption of the four-laser MetalFab 420K platform suggests a move toward higher throughput for complex, performance-critical parts, aligning with broader industry trends in aerospace, where additive manufacturing is increasingly used for structural and propulsion applications.
Additive Industries CEO Mark Massey said the company is “extremely proud” to have Stoke as the first production customer of the MetalFab 420K. He described the system as “designed and developed with exactly this type of customer and application in mind.”
The order also serves as a market validation for Additive Industries as it positions the 420K system for high-demand sectors beyond aerospace, including automotive, energy, and high-tech manufacturing. The company emphasizes the system’s modular automation, advanced calibration, and scalable throughput as key differentiators aimed at industrial users.
