Double U-shaped heating tubes are versatile electric heating elements designed for efficient thermal transfer in industrial applications. These robust components feature seamless metal construction with integrated resistance wiring for reliable performance across various heating scenarios.

The heating tube utilizes a seamless metal shell (stainless steel or copper) containing spiral heating alloy wires. The interior is filled with crystalline magnesium oxide powder, providing exceptional thermal conductivity and electrical insulation properties.

When electrical current flows through the resistance wires, heat is generated and efficiently transferred through the magnesium oxide powder to the metal tube surface, then to the target medium for uniform heating.

• Simple, compact design for easy integration
• High thermal efficiency with magnesium oxide powder core
• Excellent mechanical strength from metal tube construction
• Uniform heat distribution preventing localized overheating
• Rapid heating response with high power density
• Extended service life through quality materials and manufacturing

• Liquid heating systems for water, acids, alkalis, and salt solutions
• Low-melting-point metal processing and melting operations
• Industrial mold heating and temperature maintenance
• Ovens, drying rooms, and thermal processing equipment
• Sealing machines, water boilers, and specialized heating equipment