For S R Thermal, presenting Horizontal Gas Nitriding Furnaces requires a focus on surface engineering excellence.
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Horizontal Gas Nitriding Furnaces by S R Thermal
Enhance the wear resistance, fatigue strength, and corrosion protection of your components with S R Thermal’s Horizontal Gas Nitriding Furnaces.
By diffusing nitrogen into the surface of the metal at sub-critical temperatures, our furnaces create a hard, wear-resistant "case" while maintaining the core properties of your precision-machined parts.
The S R Thermal Engineering Advantage
Precision is everything in nitriding. Our horizontal furnaces are engineered to solve the common challenges of surface treatment:
Atmosphere Precision: Integrated ammonia dissociation control systems allow for exact regulation of the nitriding potential (
$K_n$), giving you total control over the compound (white) layer thickness. Horizontal Loading Efficiency: The horizontal design is ideal for long shafts, heavy dies, and components that require specific fixturing, allowing for easier integration with factory rail systems or forklifts.
Uniform Gas Distribution: High-performance internal fans and advanced manifold systems ensure the nitriding atmosphere reaches every crevice, even in high-density loads.
Accelerated Cooling: Our furnaces feature optional rapid-cooling systems to reduce cycle times, increasing your facility's daily throughput.
Technical Capabilities
| Feature | Specification |
| Process Temperature | 480°C to 600°C |
| Control System | Automated PLC with HMI for "Set-and-Forget" cycles |
| Heating Source | Electric (Radiant Tubes) or Gas-Fired options |
| Environment | Controlled Ammonia (NH₃), Nitrogen (N₂), and optional CO₂ |
| Sealing | High-temperature vacuum-tight door seals to prevent gas leakage |
Key Benefits for Your Components
High Surface Hardness: Dramatically increases the lifespan of gears, cams, and extrusion dies.
Low Distortion: Since the process occurs at lower temperatures than traditional hardening, there is no phase change in the steel, resulting in near-zero dimensional distortion.
Corrosion Resistance: The formed nitride layer provides an inherent barrier against moisture and chemical oxidation.
Improved Fatigue Life: Induces compressive surface stresses that prevent cracks from forming under heavy loads.
Typical Applications
S R Thermal’s Horizontal Nitriding systems are the preferred choice for:
Plastic Machinery: Extrusion screws and barrels.
Automotive: Crankshafts, valves, and piston rings.
Tool & Die: Forging dies and aluminum extrusion dies.
Aerospace: High-wear precision gears and actuators.