Immersion Heater Tubes
Blasch manufactures high-performance immersion heater tubes designed to protect electric heating elements and gas-fired burners in molten metal applications. Our silicon carbide immersion heater tubes and silicon nitride immersion heater tubes provide exceptional heat transfer efficiency while maximizing heater life and reducing maintenance costs.
Immersion heater tubes function as a protective ceramic sheath surrounding the internal electric heating element or gas burner. Heat generated inside the tube is transferred through the engineered ceramic wall and into the molten metal bath, helping maintain precise temperatures and consistent metal fluidity.
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These immersion heating systems are commonly used in:
- Molten aluminum furnaces
- Holding furnaces
- Zinc galvanizing kettles
- Galvalume production lines
- Non-ferrous metal processing operations
- Continuous molten metal heating applications
The ideal immersion heater tube material must deliver:
- Excellent thermal conductivity
- Superior thermal shock resistance
- High mechanical strength
- Non-wetting performance
- Resistance to oxidation and chemical attack
- Long operational life
Blasch addresses these requirements with its proven family of advanced ceramic materials, including OXYTRON™, NITRON™, SINTRON™, and the latest-generation OXYTRON™ 015XDII oxide-bonded silicon carbide.
Our engineered ceramic heater tubes provide:
- Reduced oxide buildup
- Improved energy efficiency
- Enhanced heat transfer rates
- Longer service campaigns
- Predictable product life
- Reduced downtime and maintenance
- Lower overall operating costs
The non-wetting characteristics of Blasch materials help minimize dross accumulation and metal adhesion, allowing for cleaner operation and improved thermal performance throughout the life of the tube.
Custom Silicon Carbide Heater Tube Solutions
Blasch offers immersion heater tubes in a wide range of standard diameters, lengths, and mounting configurations. Tubes can be manufactured for both vertical and horizontal installations and supplied with cast mounting flanges to meet specific furnace and process requirements. Internal element holders, insulators and flame distributors are also available.
Whether your application requires a standard design or a fully custom-engineered solution, Blasch engineers can help identify the optimal silicon carbide immersion heater tube or silicon nitride immersion heater tube for your molten aluminum, zinc, or other non-ferrous metal processing operation.
