【High-Frequency Induction Heating Equipment】Designed and Manufactured in Thailand｜From Output and Frequency Selection to Dedicated Coils, Controls, and Conveying Systems

K.D. HEAT TECHNOLOGY (THAILAND) CO., LTD. designs and manufactures high-frequency induction heating equipment in Thailand according to each customer’s workpieces and production conditions. We support the entire process from output and frequency selection to dedicated coils, control systems, conveying equipment, assembly and installation, and process-condition setting.

Contents

• Design and Manufacturing System for High-Frequency Induction Heating Equipment Tailored to the Workpiece
• Selection of Output, Frequency, and Heating and Cooling Conditions That Affect Hardening Quality and Hardened Layer Depth
• Equipment Configuration Including Dedicated Coils, Control Systems, and Conveying Equipment
• Start-up Support After Equipment Installation, Technical Training for Thai Staff, and In-House Production Support
• Frequently Asked Questions（FAQ）

■　Design and Manufacturing System for High-Frequency Induction Heating Equipment Tailored to the Workpiece

Cylinders, brake discs, gears, sprockets, hydraulic cylinders, and other parts used in automobiles, motorcycles, agricultural machinery, and construction machinery differ in shape, size, required hardness, and the area to be hardened depending on the workpiece. Therefore, high-frequency induction heating equipment needs to be configured according to the workpiece and required specifications, including the equipment configuration, output and frequency, heating coil, and heating and cooling conditions.

K.D. HEAT designs and manufactures high-frequency induction heating equipment in Thailand. We configure the electrical system, dedicated coils, controls, and conveying system as complete equipment, and support in-house assembly and installation, process-condition setting, and quality verification.

Before installation, customers can also discuss specifications with our technical staff, including condition verification using sample workpieces and equipment specifications suited to the installation space and production conditions at the factory.

High-Frequency Induction Heating Equipment

• Output：1～500KW
• Frequency：5kHz～500kHz
• Lower frequency：Suitable for workpieces requiring a deeper hardened layer depth
• Higher frequency：Suitable for workpieces requiring a shallower hardened layer depth
• Equipment size：According to customer specifications（designed in-house）

■　Selection of Output, Frequency, and Heating and Cooling Conditions That Affect Hardening Quality and Hardened Layer Depth

In high-frequency induction hardening, a high-frequency current is passed through a coil to heat the workpiece by electromagnetic induction, after which the workpiece is cooled to harden the required area.

Output and frequency selection are particularly important when designing the equipment. Frequency affects the area and depth of heating. In general, higher frequencies are suitable for heating closer to the surface, while lower frequencies are suitable for heating deeper areas. Conditions are further set according to the required heating state by combining factors such as output, heating time, workpiece shape, and coil shape.

In high-frequency induction hardening, quality is affected not only by heating but also by cooling conditions. We control the cooling-water flow rate, timing, application method, and the cycle from heating to cooling, and adjust these conditions for each workpiece.

By setting the heating and cooling conditions based on the material, shape, required hardness, and hardened layer depth, we aim to design equipment capable of consistently achieving the required heat treatment quality. Issues such as quench cracking, distortion, and hardness variation are also examined from the perspectives of the equipment, coil, heating conditions, and cooling conditions.

■　Equipment Configuration Including Dedicated Coils, Control Systems, and Conveying Equipment

For high-frequency induction heating equipment to operate consistently, the high-frequency power supply, dedicated coil, control system, cooling system, conveying system, and other components need to be configured according to the workpiece and production conditions.

K.D. HEAT designs and manufactures dedicated coils according to the workpiece shape and heating position, while also designing equipment that includes the control system and workpiece conveying mechanism. For control systems, we support Mitsubishi Electric, KEYENCE, Hakko Electronics, Pro-face, and others.

By linking the processes from workpiece feeding through heating, cooling, and conveying within the equipment, the production cycle can be managed consistently while reducing variation caused by manual work.

※In addition to standalone high-frequency induction heating equipment, we also support automatic hardening equipment and systems incorporating robots.

■　Start-up Support After Equipment Installation, Technical Training for Thai Staff, and In-House Production Support

Simply installing high-frequency induction heating equipment does not by itself ensure consistent heat treatment quality. It is important to understand the heating and cooling conditions for each workpiece and to manage the equipment condition and heat treatment quality on a daily basis.

K.D. HEAT supports start-up and process-condition setting after equipment installation, as well as technical training for the customer’s staff.

By accepting staff for approximately three months of training and teaching them everything from the fundamentals of heat treatment to equipment operation, condition management, and quality control, we support the establishment of a system that enables customers to continue stable production themselves after equipment installation.

We also apply the practical experience accumulated through contract heat treatment to support the start-up of in-house high-frequency induction hardening at customers’ own factories when the process was previously outsourced.
Training period, training location, number of participants, and supported language are determined in consultation with the customer.
The curriculum is the same as KDT’s internal training program.

■　Frequently Asked Questions（FAQ）

Q1：Can you design and manufacture equipment according to the shape and size of the workpiece?
A1：Yes. We design and manufacture high-frequency induction heating equipment according to the workpiece shape, size, material, required heat treatment quality, and production conditions.

Q2：Can you provide not only the high-frequency power supply but also the coils and conveying equipment as a complete system?
A2：Yes. From output and frequency selection to dedicated coils, control systems, cooling, and conveying, we can propose the required equipment configuration as a complete system.

Q3：Do you also support process-condition setting and staff training after equipment installation?
A3：Yes. In addition to process-condition setting and quality verification after equipment installation, we also provide technical training for staff on heat treatment and equipment management. Please contact us regarding specific training content and duration.

Q4：Can I find more detailed information about induction heating coil design and repair?
A4：Yes. For details on coil design and manufacturing, as well as repair and redesign according to the workpiece shape and heating conditions, please refer to our dedicated article on induction heating coils.

※For more details, please download the materials or contact us via the form below.