
Plasma Gas Atomizer System
Retech’s Plasma Gas Atomizer (PGA) system combines our proven Plasma Arc Melting (PAM) cold hearth technology with high-efficiency gas atomization to establish a true production-scale powder solution. Designed to overcome the volume and cost bottlenecks of reactive and refractory metal production, the PGA process enables production yields exceeding 1000 tons per year, comparable to steel atomization rates.
Operating at plasma torch temperatures exceeding 10,000°C, the system eliminates ceramic crucible contamination risks while providing the thermal capability to process titanium alloys, superalloys, and high-temperature refractory metals. The system’s air-lock feeder supports semi-continuous melting using cost-effective feedstock formats, including loose sponge, compacts, and recycled revert. By streamlining raw material requirements and increasing throughput, Retech’s PGA technology significantly lowers powder production costs for Additive Manufacturing and Powder Metallurgy, yielding ultra-high purity spherical powders with tight particle size distribution. Retech also supplies post-atomization powder handling and consolidation equipment.
Advantages of PGA:
- Economically viable method to produce reactive and refractory alloy powders.
- Inherently scalable due to use of hearth melting via DC plasma and advanced atomization die technology.
- Feeder supplied tilting hearth allows production session to continue as long as the feeder is being reloaded and the collection tote is being changed.
- Significant reduction in powder cost – for improved yield, lower cost raw materials and recycling of revert.
- Successfully produced complex refractory High Entropy Alloy, TiAl, MoW, Ni alloys on PGA with best-in-class power performance.
- Versatile feedstock process allows for any feed formats suitable for plasma hearth melting, including loose sponge, compacts, scrap, and ingots.
- Accepts elemental feed, allowing alloying to occur directly in the hearth.
- Narrower Powder Size Distribution (PSD) and a better d50 average powder size selectability than alternative powder production methods.
- Current models achieve production rates of 1000 tons per year.
- Scalable to higher production rates.
Product Details
Amorphous Metals
Reactive Metals
Refractory Metals
Silicon
Super Alloys
Powder Production

