Induction Heater Buying Guide

An induction heater typically consists of three main components: a power unit, a work head, and a work coil. The power unit is also called an inverter or generator, and it converts the mains frequency to a higher frequency, usually between 10 Hz and 400 kHz. The work head is also called a transformer, and it matches the power unit output to the work coil impedance. The work coil is also called an inductor, and it surrounds or contacts the material to be heated and generates the magnetic field.

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• Induction heaters come in different types and sizes, depending on the application and the material to be heated. For example, there are induction heaters for mounting and dismounting bearings, induction heaters for melting metals, induction heaters for cooking, etc.
• Induction heaters have many advantages over other heating methods, such as faster heating, lower energy consumption, more precise temperature control, safer operation, and less pollution.
• Induction heaters require induction-compatible cookware or materials, which means they must be electrically conductive and preferably ferromagnetic. You can test your cookware or material by using a magnet: if it sticks, it is likely to work with induction heating.
• Induction heaters vary in their power output, frequency range, heating capacity, control system, and safety features. You should choose an induction heater that suits your needs and budget, and that has a reliable performance and warranty.
• Induction heaters may have different voltage requirements depending on the country or region where they are used. You should check the voltage compatibility of the induction heater before buying it, and use a proper adapter or converter if needed.
• Induction heaters may also have different certification standards or regulations depending on the country or region where they are used. You should check the local laws and regulations regarding the use of induction heaters before buying them, and follow the manufacturer&#;s instructions and safety precautions when using them.

Choosing the right induction heating equipment requires consideration of many different features of the equipment and aspects of the supplier. The induction heating equipment should be long-lasting and reliable, so making the right choice is critical. These are our recommendations of how to choose a supplier and how to ensure that you make the right choice:

Applications Experience: Does the supplier have extensive experience and reputable customers in the induction heating field and in the application you are interested in?

Induction Technology: Does the Induction Heating solution provide the latest advancements in power conversion technology and digital controls to ensure the highest heating precision with a long service life? Is the induction heating technology advanced, flexible and scalable?

Power Rating: How is the power rated? Many low-cost off shore competitors rate their equipment at the input power with a specific coil. The power delivered to the heated part can be 30% lower or more depending on the technology used.

Flexibility and Load matching: Does the Induction Heating system provide an easy to use matching solution for your project? Many Induction Heating systems are factory tuned to a specific application and require extensive effort to match to different applications.

Service and Support: If your systems are shipped to different parts of the world, does the supplier have global support? Does the equipment have remote diagnostics features?

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Safety: Is the equipment CE or UL certified and does it meet all safety requirements?

Engineering Support: Does the supplier have a strong engineering team available to help with custom solutions and special applications?

Equipment Origin: Is the supplier a domestic manufacturer with robust and reliable local service and technical support backed by experienced service engineers? Is it an actual manufacturer or a reseller? Many vendors in the market resell product manufactured by other companies. They may provide good initial sales support but have limited post sale service and support capabilities.

Size and Efficiency: Is the equipment compact and energy efficient?

Interfaces and Usability: If you are planning to integrate the equipment into your system or on a production line,
a. Does the equipment have the necessary interfaces to connect with PC or PLC?
b. Does it have temperature control and monitoring options?
c. What is the turn-on response time (very important if short and precise heating cycles are required)?

Coil-making Capabilities and Optional Equipment: Does the supplier offer coil-making services? Do they have advanced design tools and algorithms to optimize the induction coil design? Do they offer optional equipment such as remote control panels, flexible water-cooled leads, remote heat stations, etc.?

For OEMs and System Integrators: Does the supplier offer OEM solutions, such as modules and equipment suitable for integrating into large systems or on conveyor lines?

Cost: Does the equipment offer the best value for the money considering: price, flexibility, energy efficiency, reliability, serviceability and maintainability?

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