Lakshmi Vacuum Technologies manufactures state-of-the-art vacuum carburizing furnaces engineered for high-performance surface hardening of steel components. This low-pressure carburizing process is highly sought after in the automotive, aerospace, and heavy machinery industries for parts requiring exceptional wear resistance and core toughness.
By introducing hydrocarbon gases (such as acetylene or propane) under a vacuum environment, carbon diffuses deeply and uniformly into the component's surface. This method eliminates the intergranular oxidation (IGO) commonly associated with traditional atmosphere carburizing, resulting in superior metallurgical integrity and cleaner parts.
Following the diffusion phase, components undergo rapid high-pressure gas quenching (up to 20 bar) using inert gases. Integrated with advanced PLC/SCADA systems, our furnaces ensure precise control over carbon depth, case hardness, and dimensional stability, delivering repeatable results for critical gears, shafts, and transmission components.
| # | 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) |
Our engineers can customize working area, gas flow dynamics, and quench pressures to your exact process requirements.
Speak to ExpertDeep, uniform case hardness with tough cores for automotive and industrial gearboxes.
Wear-resistant surfaces on high-load power transmission components.
Large components requiring consistent case depth without intergranular oxidation.
Surface-hardened flight parts processed with tight metallurgical control.
Case hardening of tooling where dimensional stability matters.
High-volume processing of transmission and engine components with repeatable results.
Low-pressure carburizing eliminates the IGO that plagues traditional atmosphere carburizing, improving fatigue life.
Hydrocarbon gases under vacuum diffuse carbon evenly - precise control of depth and surface hardness.
High-pressure gas quenching delivers the core properties without oil and without distortion surprises.
PLC/SCADA recipes govern boost-diffuse cycles, quench and tempering for repeatable production.
LPC introduces hydrocarbon gases such as acetylene or propane into a vacuum furnace to diffuse carbon into steel surfaces. It produces a hard, wear-resistant case with a tough core - without the oxidation problems of atmosphere carburizing.
The vacuum environment prevents intergranular oxidation (IGO), keeps surfaces clean, and gives more precise control of case depth and uniformity - especially valuable for gears and critical transmission parts.
Typical carburizing steels used for gears, shafts and bearings. Our engineers will confirm the right cycle for your specific grade and case depth.
Systems are configured with high-pressure gas quenching up to 20 bar using inert gases, delivering controlled cooling without oil.
Yes - PLC/SCADA control manages the boost-diffuse sequence and quench parameters, so case depth and surface hardness stay within specification cycle after cycle.
Still have questions? Talk to our engineers or request a quotation.