Lakshmi Vacuum Technologies manufactures high-performance vacuum brazing furnaces designed to join dissimilar metals with clean, strong, and flux-free joints. Our furnaces are engineered for mission-critical applications in the aerospace, automotive, and tooling industries.
By operating under a high vacuum, our brazing furnaces prevent oxidation and contamination, ensuring maximum metallurgical integrity. Capillary action bonds parts seamlessly without the need for chemical fluxes, reducing post-brazing cleaning steps and improving overall production efficiency.
Equipped with advanced PLC and SCADA control systems, our furnaces offer precise temperature uniformity, ensuring consistent and repeatable brazing results for every cycle. Whether you are brazing stainless steel, aerospace components, or copper assemblies, our systems deliver uncompromising quality.
| # | Parameter | Technical Details |
|---|---|---|
| 1 | Useful Working Area | 900 × 900 × 1200 mm / Customizable |
| 2 | Maximum Temperature | 1250°C |
| 3 | Hot Zone | Graphite / All Metal |
| 4 | Vacuum Level | 1 × 10⁻² mbar (10⁻⁶ if required) |
| 5 | Charge Weight | 900 kg |
| 6 | Furnace Vessel | Carbon Steel / SS |
| 7 | Max Quenching Pressure | 6 / 10 / 12 bar |
| 8 | No. of Zones | 1 or 3 Zones |
| 9 | Power Supply | 415V AC, 50 Hz, 3-phase |
| 10 | Control System | PLC, IPC with SCADA |
| 11 | Application | Stainless steel, aerospace parts, copper joining |
| 12 | Cooling System | High-pressure inert gas quenching (N₂ / Ar) |
Our engineers can customize working area, hot zone, and quench pressures to your exact process requirements.
Speak to ExpertFuel systems, sensors, heat shields and structural assemblies joined to aerospace cleanliness standards with full process control.
Leak-tight, flux-free joints across complex stainless steel and copper assemblies produced with repeatable quality.
EGR coolers, oil coolers and sensor assemblies brazed in production volumes with consistent results.
Carbide-to-steel joints for drills, reamers, milling cutters and wear components, using proven filler metals.
Assemblies where flux residue is unacceptable and joints must remain clean, strong and dimensionally accurate.
Copper and stainless assemblies for power and electrical applications requiring high-integrity joints.
Vacuum brazing eliminates chemical fluxes entirely - joints come out clean, cutting post-brazing cleaning steps and improving throughput.
Reliably joins stainless steels, copper, superalloys and dissimilar metal combinations in a single vacuum cycle.
Multi-zone control and PLC/SCADA automation deliver even temperature across complex, multi-joint assemblies.
Graphite or all-metal hot zones, water-cooled vessels and configurable quenching keep cycles repeatable at production scale.
Vacuum brazing joins components by heating them above the melting point of a filler metal in a high-vacuum environment. Capillary action draws the filler into the joint, producing a strong, clean bond without oxidation or flux.
Nickel-based, copper-based and silver-based fillers are commonly used with stainless steels, copper, superalloys and other metals. The right combination depends on your base materials, service temperature and joint design.
The vacuum environment prevents oxidation and contamination, so joints are flux-free and clean, post-brazing cleaning is minimal, and joint quality is more consistent for critical assemblies.
Our brazing furnaces operate up to 1250°C at 1 x 10-2 mbar, with 10-6 mbar available if required for critical applications.
Yes. A typical system supports a 900 x 900 x 1200 mm working area and 900 kg charge, and working areas can be customised for larger, heavier, or specially shaped assemblies.
Yes. The group operates nine vacuum heat treatment locations across India, and brazing job work and trials can be arranged through your nearest unit.
Still have questions? Talk to our engineers or request a quotation.