Lakshmi Vacuum Technologies manufactures high-temperature pack aluminizing furnaces engineered for the diffusion coating of critical metal components. This specialized thermal process is essential for the aerospace, gas turbine, and power generation industries, where parts are subjected to extreme high-temperature oxidation and hot corrosion environments.
In the pack aluminizing process, components are buried inside a sealed retort containing a powder mixture of aluminum, an activator, and an inert filler. When heated to high temperatures (up to 1150°C), aluminum vapors are generated and diffuse into the component's surface, forming a highly protective, metallurgically bonded aluminide layer. This significantly extends the service life of critical parts like turbine blades and exhaust systems.
Our furnaces are designed for superior temperature uniformity (±5°C) across the hot zone to ensure consistent coating thickness and quality. Featuring advanced ceramic fiber insulation, robust Kanthal, MoSi₂, or SiC heating elements, and precise PLC with HMI control systems, our pack aluminizing furnaces deliver reliable, repeatable results for your most demanding surface engineering applications.
| # | Parameter | Technical Details |
|---|---|---|
| 1 | Maximum Temperature | 1150°C |
| 2 | Heating Method | Electric (Kanthal / MoSi₂ / SiC heaters) |
| 3 | Furnace Type | Box / Pit / Retort Type |
| 4 | Control | PLC with HMI |
| 5 | Atmosphere | Air / Inert Gas (optional) |
| 6 | Insulation | Ceramic fiber modules |
| 7 | Chamber Size | Customizable |
| 8 | Temperature Uniformity | ±5°C across hot zone |
Our engineers can customize chamber dimensions, heating elements, and retort designs to your exact coating requirements.
Speak to ExpertAluminide coatings that protect hot-section components from oxidation and hot corrosion.
Coating of exhaust components exposed to extreme temperatures and corrosive gases.
Gas turbine and energy plant parts requiring extended service life at high temperature.
Diffusion coatings for flight hardware in high-temperature zones.
Protection for components in high-temperature process environments.
Oxidation-resistant coatings for high-temperature heat transfer equipment.
Even temperature across the hot zone means consistent coating thickness on every part in the retort.
Aluminide layers diffuse into the base metal, forming a durable protective barrier - not just a surface layer.
Ceramic fiber insulation with Kanthal, MoSi2 or SiC heating elements for long service life.
PLC with HMI control keeps coating cycles repeatable and documented.
Components are buried in a sealed retort with a powder mixture of aluminium, an activator and an inert filler. At high temperature, aluminium vapours diffuse into the component surface, forming a protective aluminide coating.
High-temperature oxidation and hot corrosion - which is why the process is essential for turbine blades, exhaust systems and other hot-section parts.
The hot zone is designed for ±5°C uniformity, ensuring consistent coating thickness and quality across the workload.
Aerospace, gas turbine, power generation and petrochemical industries are the primary users.
Precise PLC with HMI control governs temperature profiles and cycle documentation, making coating results repeatable batch after batch.
Still have questions? Talk to our engineers or request a quotation.