Radiant Tubes are specialized furnace heating elements designed to provide indirect, high-temperature heating in industrial furnaces and kilns.
They operate by housing heating elements (such as bundle rod heaters, cartridge heaters, or gas-fired burners) inside a sealed alloy or ceramic tube, which then transfers heat by radiation and convection to the furnace chamber.
This design isolates the heating element from the process atmosphere, protecting it from oxidation, carburization, or chemical attack, while ensuring long life, high thermal efficiency, and uniform temperature distribution.
Radiant tubes are widely used in heat treatment, carburizing, nitriding, and aluminium melting applications, where clean, controlled, and efficient heat transfer is required.
As a premier manufacturer, Subhot Enterprises Pvt. Ltd. specializes in designing and engineering high-performance Radiant Tube in Delhi tailored for demanding applications. Built using top-grade elements, our solutions focus on long-term sustainability and heavy load compliance for units across Delhi.
Whether your facility requires standard configurations or highly customized specifications, our range of Radiant Tube delivers consistent performance under harsh industrial environments. Engineering compliance and custom fitments are double-tested before shipping the batch to your exact industrial site in Delhi. Contact our technical expert team today for standard pricing or a tailored business quotation for your operations.
| Parameter | Value / Range |
| Tube Materials | FeCrAl, NiCr, SS310, Incoloy, Inconel, SiC, Si3N4 |
| Manufacturing Process | Powder metallurgy, seamless mandrel extrusion |
| Configuration Options | Straight, U-shaped, W-shaped, P-shaped, custom profiles |
| Outer Diameter Range | 25 mm to 200 mm (custom sizes available) |
| Wall Thickness Range | 1 mm to 5 mm (application optimized) |
| Maximum Operating Temperature | 1,400°C (2552°F) continuous operation |
| Standard Length Options | Up to 3,000 mm straight (custom lengths available) |
| Sealing Technology | Ceramic-to-metal seals, gasket flanges |
| Thermal Shock Resistance | Superior resistance to rapid temperature changes |
| Corrosion Resistance | Excellent resistance to oxidizing/reducing atmospheres |
| Integration Compatibility | Bundle rod, cartridge heaters, gas burner systems |
| Quality Standards | Advanced materials testing and dimensional verification |
| Custom Engineering Options | Unlimited shapes, sizes, and integration features |
Subhot Industrial Heaters is a trusted radiant tube manufacturer in Delhi offering high-quality heating solutions for industrial furnaces and heat treatment applications.
Our industrial furnace radiant tube Delhi solutions are designed for high-temperature operations such as carburizing, annealing, aluminium melting, and ceramic furnace applications.
We are a reliable radiant tube supplier in Delhi providing customized radiant tubes in various sizes, shapes, and materials including Inconel, SS310, and Silicon Carbide.
Our ceramic radiant tube Delhi products are widely used in ceramic kilns, laboratory furnaces, semiconductor furnaces, and research heating systems due to their excellent thermal resistance.
As an experienced heating element manufacturer Delhi, we also supply bundle rod heaters, cartridge heaters, furnace strip heaters, and other industrial heating components.
