(Hot-runner)Spring heater/Coil heater

The hot-runner spring heater, also known as the Coil heater, is a high-performance industrial heating element. It adopts high-quality alloy resistance wire tightly wound into a helical spring structure, and is wrapped with a high-temperature resistant and anti-oxidation metal sleeve on the outside. Through a special process, it is filled with high thermal conductivity and insulation magnesium oxide powder to ensure heating efficiency and usage safety. This heater features outstanding flexibility and adaptability. It can be produced in various cross-sectional shapes such as circular, square, rectangular, and irregular structures according to actual needs, to meet the diverse demands of various industrial scenarios. Its outer surface treatment processes are rich, including bright types with metallic luster, presenting an exquisite appearance. There are also matte types that reduce reflective interference and are more suitable for special environments. In addition, high-precision thermocouples can be integrated to achieve real-time temperature monitoring and precise control, enhancing the level of automation and heating stability.

1.High-efficiency heating: The spiral structure design ensures uniform distribution of resistance wires, increasing the contact area with the heated object, effectively enhancing heat conduction efficiency, achieving rapid temperature rise, reducing equipment preheating time, and improving production efficiency.

2.Long service life: Made from high-quality raw materials and advanced manufacturing processes, it has strong high-temperature resistance and can maintain stable electrical performance and mechanical strength even in high-temperature environments, thus extending its service life and reducing maintenance costs.

3.Safe and reliable: The high-insulation magnesium oxide powder filling and metal sleeve protection can effectively isolate the resistance wire from the external environment and prevent the risk of leakage. It has excellent mechanical compressive resistance and can withstand a certain degree of vibration and shock, ensuring safety and stability during use.

4.Precise temperature control: Products with integrated thermocouples, in combination with an intelligent temperature control system, can achieve high-precision temperature control within ±1℃, ensuring temperature uniformity and avoiding local overheating or overcooling, providing reliable support for precision processing techniques.

1.Hot runner plastic molds: In the injection molding process, the hot runner system has extremely high requirements for temperature control. Spring heaters are installed on components such as hot runner plates and nozzles to maintain the high-temperature state of the molten material during the flow process, prevent solidification, ensure the uniform filling of the molten material in the mold cavity, improve the molding quality and production efficiency of plastic products, and are widely used in the production of plastic products such as automotive parts, electronic appliances, and medical devices.

2.Blow molding machine: In the blow molding process of plastic hollow molding, it is used to heat the die head, barrel and other parts of the blow molding machine to ensure that the plastic raw materials are in an appropriate molten state, enabling the plastic to be smoothly blown into various hollow products of different shapes, such as plastic bottles, plastic buckets, plastic containers.

3.Extruder: Installed at the nozzle, die head and screw of the extruder, it continuously heats and plasticizes plastic raw materials to ensure the fluidity and stability of the materials during the extrusion process. It is often used in the extrusion production of plastic products such as pipes, profiles and films.

In addition to the above-mentioned fields, hot-runner spring heaters can also be applied in industrial scenarios that require precise heating and temperature control, such as rubber vulcanization, packaging machinery, food processing, and chemical reaction vessels, providing stable and reliable heat source support for various production processes.