American Fusion Achieves 100,000 Atmospheres in Texatron™ Testing — American Fusion Inc.

Event summary

American Fusion reported peak confinement pressures of 100,000 atmospheres in Texatron™ testing, a key milestone in its D–³He fusion development.
The company is evaluating two Texatron™ geometries: an 11-inch chamber (500 kW) and a 23-inch chamber (5 MW), with the larger configuration offering 8.36x more plasma volume.
Next steps include refining plasma temperature, density, and confinement time to progress toward D–³He fusion ignition.
A new portable vacuum chamber was delivered on August 26, 2026, to support expanded testing capabilities.

The big picture

American Fusion’s latest testing results represent incremental progress in the competitive fusion energy sector, where achieving net energy gain remains a critical hurdle. The company’s pulsed magnetic compression approach differentiates it from steady-state magnetic confinement methods, but success will depend on sustained technical advancements and scaling efficiencies. The industry is watching closely as fusion startups race to demonstrate viable commercial applications.

What we're watching

Technical Scaling: Whether the larger 23-inch Texatron™ configuration can sustain higher fusion reaction rates and energy output per pulse.
Ignition Timelines: The pace at which American Fusion can achieve D–³He fusion ignition, given the need to optimize temperature, density, and confinement time.
Commercial Viability: How the company’s progress toward net energy gain will impact its long-term goal of a scalable, carbon-free fusion energy platform.