Explore our standard and OEM/ODM spherical, alloyed, and coated atomized aluminum powders produced under strict ISO 9001/14001 process control.
Founded in 1997, Hunan Ningxiang JiWeiXin Metal Powder Co., Ltd. (Toyal JWX) represents the convergence of specialized advanced powder metallurgy and Japanese industrial discipline. Jointly acquired in December 2009 by Toyo Aluminium K.K. Group and Shanghai Matsuo Co., Ltd., Toyal JWX has cemented its position as a global benchmark for atomized metal powder manufacturing.
Operating out of the Ningxiang State-level Economic and Technological Development Zone, our 10,000 metric-ton annual production plant utilizes proprietary close-coupled inert gas atomization (VIGA) technology alongside precision air-atomization systems. This synergy ensures absolute lot-to-lot consistency, low oxygen contamination, and tailored particle size distributions (PSD) matching international regulatory and technical demands.
In high-tech applications, standard commercial aluminum powders (99.0% to 99.5% purity) often fail due to trace iron (Fe), silicon (Si), or copper (Cu) impurities that compromise thermal conductivity, oxidation kinetics, and laser absorption. High-Purity Aluminium Powder (3N5 to 5N, equivalent to 99.95% - 99.999% purity) bridges this technological void.
Our engineered powders exhibit high sphericity (Aspect Ratio > 0.95), controllable oxide skin thickness (< 3.0 nm), and optimized flowability (Hall Flowometer speed < 70 s/50g), providing a tangible performance gain for global OEM engineering teams.
From aerospace structural weight reduction to thermal management in electric vehicles, our atomized aluminum powders serve critical industrial supply chains.
Additive manufacturing (AM) of flight-critical components demands exceptionally pure spherical aluminum powders (such as AlSi10Mg, Scalmalloy, and 7000-series alloys). Our inert gas-atomized powders provide ultra-low internal porosity and smooth powder bed deposition in Laser Powder Bed Fusion (LPBF) systems.
Electric vehicle (EV) battery packs and high-power electronics require rapid heat dissipation. Uncoated and surface-modified high-purity spherical aluminum powders act as thermally conductive functional fillers in silicone pads, gap fillers, and liquid gels.
Photovoltaic cell metallization paste (aluminum back-surface field pastes - Al-BSF) demands high-purity atomized aluminum powder. Purity directly correlates with solar cell efficiency, preventing carrier recombination at impurity sites.
For high-wear structural parts, mixing high-purity aluminum matrix powder with ceramic reinforcements (SiC, B4C, Al2O3) yields metal matrix composites with extreme stiffness, low coefficient of thermal expansion (CTE), and superior tensile strength.
In carbon-containing refractories (MgO-C and Al2O3-C bricks), high-purity aluminum powder functions as a critical antioxidant. It reacts with carbon/oxygen to form Al4C3 or Al2O3, protecting carbon structures in steelmaking ladles and furnaces.
Al-Si alloy powders (e.g., AlSi12) are formulated into technical brazing pastes and thermal spray coatings. Their lowered melting point allows non-corrosive joining of heat exchangers, radiators, and HVAC systems.
Understanding the mechanical and chemical differences across manufacturing processes enables procurement teams to match the exact powder grade to process requirements.
| Purity / Atomization Grade | Primary Production Route | Typical PSD (D50) Range | Oxygen Content | Primary Industrial Use-Case |
|---|---|---|---|---|
| High-Purity (4N - 5N) (99.99% - 99.999%) |
Inert Gas Atomization (Argon/Nitrogen) + Vacuum Refinement | 3 μm - 25 μm | < 400 ppm | Target sputtering, solar cell BSF, electronic pastes, chemical synthesis |
| Spherical Gas-Atomized (3N5) (99.95%) |
Close-Coupled Nitrogen Gas Atomization | 15 μm - 53 μm | < 800 ppm | LPBF 3D printing, aerospace components, AMMC structural matrix |
| Surface-Coated / Fabricated (99.5% - 99.8%) |
Gas/Air Atomization + Surface Organosilane Coupling | 10 μm - 45 μm | < 1500 ppm | Thermal gap fillers, conductive silicone elastomers, potting compounds |
| Air-Atomized Uncoated (99.0% - 99.5%) |
High-Velocity Air Atomization | 20 μm - 150 μm | < 3000 ppm | Refractory brick antioxidants, exothermic sleeves, chemical reactions |
| Alloy Powders (AlSi10Mg, AlSi12) (Base Al + Alloying) |
Inert Gas Atomization with Precision Alloy Addition | 20 μm - 63 μm | < 1000 ppm | Metal Injection Molding (MIM), powder metallurgy structural parts |
Achieving defect-free final parts requires aligning powder physical characteristics with OEM equipment specifications.
For metal 3D printing platforms (EOS, SLM Solutions, GE Additive, BLT), spherical powder flowability governs layer uniformity. Gas-atomized spherical high-purity aluminum powder exhibits minimal inter-particle friction.
Incorporating pure aluminum powder into silicone resin or epoxy systems requires balancing thermal conductivity against compounding viscosity.
As a regulated hazardous material supplier, Toyal JWX guarantees international safety compliance, batch traceability, and custom packaging security.
Aluminum powder is classified under international maritime and air transport regulations as a Class 4.2 / 4.3 flammable solid or substance which in contact with water emits flammable gases.
Every shipment is backed by accredited Quality Control documentation ensuring compliance with global manufacturing mandates.
Through the global network of Toyo Aluminium K.K., local engineering teams provide onsite application technical consulting across North America, Europe, East Asia, and Southeast Asia.
Our ongoing research initiatives aim to push the physical boundaries of atomization, surface passivation, and powder sustainability.
Scaling closed-loop inert gas recycling systems to maintain surface oxygen levels below 300 ppm for sensitive aerospace alloy systems.
Developing molecular-thin silica and alumina hybrid coatings to enhance powder moisture resistance while maintaining rapid reaction kinetics.
Pioneering continuous plasma atomization routes for ultra-fine sub-micron (0.5 - 2 μm) spherical aluminum powders for advanced electronic inks.
Integrating certified primary green aluminum ingots produced via renewable hydropower to minimize Scope 3 carbon footprint across customer supply chains.
In-depth responses regarding material specifications, customization capabilities, and ordering logistics.
Review our core atomized aluminum powder products available for OEM specification, global supply, and collaborative application engineering.
