Vacuum Furnace Products | Lakshmi Vacuum

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Our Vacuum Furnace Systems

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Built for mission-critical thermal processing

From single-chamber research furnaces to large-scale industrial production lines, every Lakshmi Vacuum system is engineered for repeatability, energy efficiency, and uncompromising metallurgical integrity.

Aerospace Defence Automotive Tooling Space Research

13Product Lines

23+Years Expertise

10⁻⁶mbar Vacuum

Vacuum Brazing Furnace Click to View Specs

Vacuum Sintering Furnace Click to View Specs

Vacuum Hardening Furnace Click to View Specs

Vacuum Degassing Furnace Click to View Specs

Vacuum Carburizing Furnace Click to View Specs

Vacuum Melting Furnace Click to View Specs

Vacuum Ovens Click to View Specs

Vacuum Autoclaves Click to View Specs

Thermo Vacuum Chambers Click to View Specs

Vacuum Hot Press Click to View Specs

Low Pressure Nitriding Furnace Click to View Specs

Vacuum Strip Casting Furnace Click to View Specs

Pack Aluminizing Furnace Click to View Specs

Vacuum Brazing Furnace Click to View Specs

Vacuum Sintering Furnace Click to View Specs

Vacuum Hardening Furnace Click to View Specs

Vacuum Degassing Furnace Click to View Specs

Vacuum Carburizing Furnace Click to View Specs

Vacuum Melting Furnace Click to View Specs

Vacuum Ovens Click to View Specs

Vacuum Autoclaves Click to View Specs

Thermo Vacuum Chambers Click to View Specs

Vacuum Hot Press Click to View Specs

Low Pressure Nitriding Furnace Click to View Specs

Vacuum Strip Casting Furnace Click to View Specs

Pack Aluminizing Furnace Click to View Specs

Brazing View Specs

Vacuum Brazing Furnace

Joins dissimilar metals using a filler material under vacuum, ensuring clean, strong, and flux-free joints.

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#	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)

Sintering View Specs

Vacuum Sintering Furnace

Densifies powder materials by heating below melting point under vacuum or controlled atmosphere.

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#	Parameter	Technical Details
1	Useful Working Area	900 × 900 × 1200 mm / Customizable
2	Maximum Temperature	1250°C – 2000°C
3	Hot Zone	Graphite
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 / 15 bar
8	No. of Zones	1 or 3 Zones
9	Sintering Atmosphere	Vacuum / Argon
10	Power Supply	415V AC, 50 Hz, 3-phase
11	Control System	PLC, IPC with SCADA
12	Application	Powder metallurgy, ceramics, carbide tools, CMCs
13	Cooling System	Water-cooled with optional gas quenching

Hardening View Specs

Vacuum Hardening Furnace

Hardens steel and alloys by heating under vacuum and rapidly cooling using high-pressure gas quenching.

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#	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 / 15 bar or oil quench
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	Tool steels, dies, aerospace parts, precision components
12	Cooling System	High-pressure inert gas quenching (N₂ / Ar)

Degassing View Specs

Vacuum Degassing Furnace

Removes dissolved gases (hydrogen, oxygen) from molten or solid metals to improve purity.

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#	Parameter	Technical Details
1	Useful Working Area	900 × 900 × 1200 mm / Customizable
2	Maximum Temperature	800°C – 1600°C
3	Hot Zone	Graphite / All Metal
4	Vacuum Level	1 × 10⁻⁴ mbar (10⁻⁶ if required)
5	Charge Weight	900 kg
6	Furnace Vessel	Carbon Steel / SS
7	Gas Removal	Hydrogen, Oxygen, Nitrogen degassing
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	Purification of steel, alloys, superalloys
12	Cooling System	Water-cooled coil and walls

Carburizing View Specs

Vacuum Carburizing Furnace

Introduces carbon into steel surfaces under vacuum using hydrocarbon gases for surface hardening.

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#	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	10 / 12 / 15 / 20 bar or oil quench
8	No. of Zones	1 or 3 Zones
9	Power Supply	415V AC, 50 Hz, 3-phase
10	Process Gas	Acetylene, Propane, Methane
11	Control System	PLC, IPC with SCADA
12	Application	Gear parts, transmission components, tool steels
13	Cooling System	High-pressure inert gas quenching (N₂ / Ar)

Melting View Specs

Vacuum Melting Furnace

High-purity induction or arc melting for reactive and refractory alloys — VIMF and VAMF configurations.

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#	Parameter	Technical Details
1	Melting Capacity	1 kg – 500 kg
2	Crucible Material	Graphite / Alumina / Zirconia
3	Induction Frequency	1–10 kHz (adjustable)
4	Vacuum Level	1 × 10⁻⁴ mbar
5	Max Temperature	Up to 1700°C
6	Cooling System	Water-cooled induction coil and chamber walls
7	Alloy Capability	Ferrous / Non-ferrous / Reactive metals
8	Degassing Feature	Optional inert gas purging
9	Control System	PLC, IPC with SCADA

#	Parameter	Technical Details
1	Melting Capacity	100 g – 2 kg
2	Electrode Diameter	10 – 100 mm
3	Crucible Material	Graphite / Alumina / Zirconia
4	Atmosphere	Argon / High Vacuum
5	Vacuum Level	1 × 10⁻⁶ mbar
6	Max Temperature	Up to 3500°C
7	Cooling System	Water-cooled copper hearth
8	Arc Ignition	Manual / Automatic Arc Starter
9	Power Supply	DC power supply
10	Applications	Titanium, Zirconium, Tantalum alloys
11	No. of Buttons	Single or Multi-button capability
12	Control System	PLC, IPC with SCADA

Ovens View Specs

Vacuum Ovens

Used for drying, curing, and aging materials in vacuum conditions.

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#	Parameter	Technical Details
1	Temp Range	Ambient to 250°C / 400°C
2	Vacuum Level	10⁻³ – 10⁻⁵ mbar
3	Chamber Size	25 L – 500 L
4	Heating System	Uniform electric heaters with PID control
5	Material	SS304 / SS316 interior
6	Shelves	Adjustable / Removable
7	Controller	Digital PID / Programmable touchscreen
8	Applications	Drying, Degassing, Curing, Baking
9	Control System	PLC, IPC with SCADA

Autoclaves View Specs

Vacuum Autoclaves

Pressure vessels for composite curing or sterilization under vacuum and elevated temperature.

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#	Parameter	Technical Details
1	Chamber Size	Ø300 – Ø2000 mm × 700 – 6000 mm L
2	Max Pressure	Up to 10 bar (gas)
3	Max Temperature	Up to 250°C
4	Vacuum Level	10⁻³ mbar
5	Heating Method	Electrical / Steam jacket
6	Door Type	Manual / Hydraulic locking
7	Applications	Composite curing, Sterilization, Bonding
8	Power Supply	380–480V, 3-phase, 50 Hz
9	Pressurizing Rate	0.5 to 1 bar/min
10	Depressurizing Rate	0.5 to 1 bar/min
11	Control System	PLC, IPC with SCADA

Space Simulation View Specs

Thermo Vacuum Chambers

Simulates space conditions for aerospace component testing under ultra-high vacuum and extreme thermal ranges.

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#	Parameter	Technical Details
1	Internal Size	Customizable (based on payload/test size)
2	Temperature Range	−80°C to +150°C (higher on request)
3	Vacuum Level	10⁻⁶ mbar
4	Temperature Uniformity	±2°C
5	Material	SS304 / 316 with mirror finish
6	Instrument Ports	Customizable feedthroughs, viewports
7	Cooling System	LN₂ / Thermal circulators
8	Heating System	Electric / Infrared heating
9	Applications	Space simulation, aerospace testing, outgassing
10	Control System	PLC, IPC with SCADA, DAS optional

Hot Press View Specs

Vacuum Hot Press

High-temperature pressing combining heat and uniaxial pressure under vacuum to densify powders or bond materials.

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#	Parameter	Technical Details
1	Max Temperature	Up to 2200°C (graphite/molybdenum heaters)
2	Max Pressure	Up to 100 tons (hydraulic press)
3	Heating Zone Size	Ø100 – Ø600 mm (custom available)
4	Vacuum Level	10⁻³ – 10⁻⁵ mbar
5	Atmosphere	Vacuum / Inert gas (Argon, Nitrogen)
6	Control System	PLC, IPC with SCADA, DAS optional
7	Heating Type	Resistance heating with multi-zone control
8	Cooling System	Water-cooled components
9	Applications	Powder sintering, diffusion bonding, composite pressing

Nitriding View Specs

Low Pressure Nitriding Furnace

Diffuses nitrogen into metal surfaces under low pressure to enhance hardness, wear, and fatigue resistance.

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#	Parameter	Technical Details
1	Useful Working Area	900 × 900 × 1200 mm / Customizable
2	Maximum Temperature	700°C
3	Hot Zone	Graphite / All Metal
4	Vacuum Level	1 × 10⁻² mbar
5	Charge Weight	900 kg
6	Furnace Vessel	Carbon Steel / SS
7	Temperature Uniformity	±5°C (AMS 2750)
8	No. of Zones	1 or 3 Zones
9	Power Supply	415V AC, 50 Hz, 3-phase
10	Process Gas	Ammonia (NH₃) and/or Nitrogen + Hydrogen
11	Control System	PLC, IPC with SCADA
12	Application	Automotive gears, aircraft landing gear, injection molds
13	Cooling System	Gas cooling (Nitrogen, Helium)

Strip Casting View Specs

Vacuum Strip Casting Furnace

Melts and rapidly solidifies high-temperature alloys into thin metal strips under vacuum.

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#	Parameter	Technical Details
1	Melting Capacity	1 – 10 kg (Customizable)
2	Cooling Method	Copper wheel with internal water cooling
3	Casting Atmosphere	High Vacuum / Inert Gas (Ar, N₂)
4	Furnace Temperature	Up to 1600°C
5	Strip Thickness	20 – 200 microns
6	Strip Width	Up to 100 mm
7	Control System	PLC with Touchscreen HMI
8	Vacuum Level	≤ 1 × 10⁻³ mbar

Aluminizing View Specs

Pack Aluminizing Furnace

High-temperature diffusion coating system applying aluminum to components for oxidation and corrosion resistance.

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#	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

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Our operations adhere to international quality and safety standards, with certifications and procedures in place to support customer-specific audits and technical evaluations.

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Serving India's leading defence, aerospace, and industrial organisations.

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