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Common heating media for industrial heated rollers include: 1. Thermal oil (most common) 2. Electric heating (no medium required, self-contained system) 3. Steam 4. Hot water 5. Molten salt heating medium 6. Other special media (such as air, gas, heat pipe technology, etc.)

If the process requires high temperature, high precision, and high stability, then an oil-guided heating roller must be selected. If the process requires low temperature, is cost-sensitive, and has lower requirements for thermal stability, then a water-guided heating roller is more suitable.

Almost all industries that require material softening, plasticizing, coating, pressing, stretching, or shaping require heated rollers. In short, wherever a production line uses heat to influence material properties, heated rollers play a crucial role.