1. Materials

· Sheath/Tubing Material: Primarily made of stainless steel, such as SUS304, SUS316, 310S, etc., offering excellent high-temperature resistance, corrosion resistance, and anti-dry burn performance.

· Fins: Typically made of materials with excellent thermal conductivity such as aluminum, stainless steel, or carbon steel. Aluminum fins are the most common due to their lightweight, high thermal conductivity, and ease of processing.

· Heating Element: High-performance nickel-chromium or iron-chromium-aluminum alloy resistance wire, ensuring stable heating efficiency and long service life.

· Insulation Filling: High-purity, high-thermal-conductivity modified magnesium oxide powder, providing excellent electrical insulation and efficiently transferring heat to the sheath and fins.

· Leads: Standard配置 are high-temperature resistant silicone rubber wires, nickel-plated copper wires, or pure nickel leads, ensuring safety and stability at high-temperature connection points.

2. Dimensions

The dimensions of finned heating cartridges are highly customizable. Key parameters include:

· Tube Diameter: Typically ranges from φ6mm to φ22mm.

· Tube Length: Can be customized according to requirements, commonly ranging from 100mm to over 2000mm.

· Fins:

· Fin Diameter: Designed based on heat dissipation needs, usually 20mm - 100mm larger than the tube diameter.

· Fin Pitch: Typically between 2mm - 10mm. A smaller pitch increases the heat dissipation area per unit length.

· Arrangement: Can be designed as continuous spiral fins or single-piece fins, tightly fitted (often crimped) onto the heating tube to ensure optimal heat transfer.

3. Voltage

· Operates over a wide range of voltages and can be manufactured according to customer requirements.

· Common Voltages: AC/DC 12V, 24V, 36V, 48V, 110V, 220V, 380V, etc.

· Custom special voltages are supported to meet the requirements of specific equipment and safety standards.

4. Power

· Power design is closely related to tube size, surface load, heat dissipation area, and operating temperature.

· Power Range: Available from tens of watts to over ten kilowatts.

· Core Principle: Power is accurately designed based on the customer's provided operating environment (e.g., medium, target temperature, heating time) to ensure heater lifespan and safety, avoiding premature failure due to excessive power.

5. Applications

These heaters are optimized for gas heating and air duct heating scenarios due to their large heat dissipation area, and are widely used in:

· Industrial Fields: Injection molding machine barrel heating, extruders, hot air circulation ovens, drying equipment, chemical material drying, air heaters, welding equipment preheating.

· Commercial & Appliance Fields: Air heaters, HVAC auxiliary heating, dehumidifiers, air curtains, food warming cabinets.

· Others: Laboratory equipment, medical sterilization equipment, and other applications requiring rapid and uniform air heating.

6. Product Features

· High Efficiency & Energy Saving: The significantly increased fin surface area greatly enhances heat exchange efficiency with flowing air, enabling rapid temperature rise and high thermal energy utilization.

· Uniform Temperature Distribution: The fins allow heat to dissipate evenly over a larger area, preventing local hot spots and achieving more uniform heating.

· Compact Structure & High Power Density: The fins maximize the effective heat dissipation area within a limited space, allowing for higher power ratings.

· High Mechanical Strength & Long Service Life: The tight integration of fins and tube enhances structural rigidity, while reasonable surface load design ensures a long operational life.

· Easy Installation: Often equipped with standard mounting fixtures (such as threaded ends or flange mounts) for easy integration into various equipment.

· Flexible Customization: Fully customizable based on installation space, duct size, power, and temperature requirements.