Cast aluminum heating plate heating coil controllable temperature heating sheet electric heating plate custom cast copper heating plate cast copper heating coil
The "cast aluminum/cast copper heating plates, heating coils, and controllable temperature heating sheets" you mentioned are heating elements widely used in industrial equipment. They are typically used in plastic machinery, molds, chemical pipelines, and other scenarios requiring efficient and uniform heating. Most of these products support non-standard customization to meet the installation and heating requirements of different equipment.
Based on industry information, here are the core features, parameters, and application scenarios of these types of heating elements:
1. Cast Aluminum Heating Plate / Cast Aluminum Heating Coil
Core process: Using tubular electric heating elements as the heating body, bent into shape and placed in a mold, then cast or die-cast with high-quality aluminum alloy material.
Performance features: Aluminum has high thermal conductivity, providing outstanding heat transfer efficiency, ensuring uniform temperature on the heating surface, and eliminating local hot spots and cold spots. It also has advantages such as strong mechanical performance, good thermal insulation, and resistance to magnetic fields.
Technical parameters: The normal operating temperature is between 150°C and 450°C (some can reach around 350°C for short periods); the surface load (surface power density) is generally between 2.5 and 4.0 W/cm².
Main applications: Plastic machinery (injection molding machines, extruder barrels), mold preheating, cable machinery, heating of non-corrosive liquids, etc.
2. Cast Copper Heating Plate / Cast Copper Heating Coil
Core process: The structure is similar to cast aluminum, but the shell is made of high-quality copper material (or copper alloy) formed by centrifugal casting.
Performance features: Copper's thermal conductivity (about 377 W/(m·K)) is much higher than aluminum, so cast copper heaters have faster thermal response and quicker heating. Additionally, their high-temperature resistance, oxidation resistance, and corrosion resistance are superior to cast aluminum, resulting in a longer service life.
Technical parameters: The working temperature range is wider, typically between 150°C and 650°C (some high-power models can reach 700°C); the surface load is higher, up to 3.5 to 5.0 W/cm² (some can reach 8.0 W/cm²).
Main applications: Suitable for scenarios requiring higher heating speed and temperature, such as chemical reactors, rubber vulcanization processes, and high-temperature die head heating in plastic machinery.
3. Controllable Temperature Heating Sheet (Electric Heating Plate)
Core process: These products typically refer to flexible or rigid heating sheets made by embedding heating wires or heating circuits into insulating substrates (such as silicone, mica, non-woven fabric, PI film, etc.).
Performance features: Thin and bendable, they can closely fit the surface of various shapes. They support zone temperature control and are easy to achieve precise constant temperature control and over-temperature protection through external temperature controllers (such as PID controllers, NTC/PTC sensors).
Main applications: Medical equipment (physical therapy blankets, incubators), car seat heating, industrial pipeline/valve insulation and anti-freezing, laboratory instrument constant temperature, consumer electronics (heated clothing, insoles), etc.
💡 Selection and Custom Procurement Suggestions
Since these heating elements are mostly non-standard customized products, when purchasing or customizing, it is recommended that you provide the following key parameters to the manufacturer to obtain accurate quotes and design solutions:
Size and shape: length and width dimensions, thickness, inner and outer diameters, whether holes (square/round) are needed, or whether to make special shapes like right-angle or clamshell types.
Electrical parameters: operating voltage (e.g., 220V/380V) and required power (or surface load requirements).
Working conditions: target heating temperature, whether a built-in temperature measurement hole (thermocouple hole) is needed, and whether air cooling/water cooling heat dissipation slots are required.
Installation method: wiring method (ceramic terminal/high-temperature wire/junction box) and lead wire length.
