30KW high frequency induction heating equipment

Introduce::Technical parameters of 30kw high frequency induction heating equipment, performance characteristics of 30kw high frequency induction heating equipment, application and selection of 30kw high frequency induction heating equipment
  • Introduction
  • Consultation

Model: HSD-30 
Input power: 30KW 
Input voltage: 360V ~ 420V 
Oscillation frequency: 25 ~ 40KHz 
Application areas:

1. Carbide saw blade and diamond saw blade are welded.

2 , turning tools, woodworking tools welding.

3. Welding of drill bits, drill bits, picks and anchors.

4 , valve quenching, hot rolling straight shank twist drill.

5 , quenching of hand tools such as pliers, wrenches, screwdrivers, etc.

Portable device, small size, light weight, easy to install and easy to operate.

Technical Parameters:

Working power


Cooling water flow (host)

18L/Min ( 0.1MPa )

Operating voltage range

360V ~ 420V

Cooling water pressure

0.1 to 0.3 MPa

Input Current


Water temperature protection point

55 °C

Output Power




Oscillating frequency

25 to 40KHz

Mainframe dimensions ( mm3)

265 × 600 × 540

30kw high frequency heating equipment performance characteristics: 
1. Adopt IGBT solid-state inverter technology, which is energy efficient and has high output power. 
2 , digital phase lock technology, automatic frequency tracking. 
3 , modular design, easy to install, easy to operate, no need to debug. 
4 , 30kw high-frequency heating equipment uses resonant frequency conversion technology to make the overall machine efficiency ≥ 95% , high efficiency. 
5 , 100% load rate design, can work 24 hours a day. 
6. Perfect protection function, high reliability and easy maintenance. 
7 , can replace other heating methods (such as gas, coking coal, oil furnace, electric furnace, high-frequency tube, etc.), energy saving and environmental protection. 
Unique advantages of 30kw high frequency heating equipment: 
1. No external heating is required for the workpiece, and local heating can be selectively performed, so that the electric energy consumption is small and the workpiece deformation is small. 
2. The surface hardened layer can be adjusted by adjusting the working frequency and power of the equipment as needed, so that the martensite structure of the hardened layer is finer, and the hardness, strength and toughness are relatively high. 
3. The workpiece after heat treatment by induction heating has a thick tough region under the hard layer of the surface, and has good compressive internal stress, so that the workpiece has higher fatigue resistance and breaking ability. 
4 , the heating speed is fast, the workpiece can reach the required temperature in a very short time, even within 1 second, so that the surface oxidation and decarburization of the workpiece are light, most of the workpiece does not need gas protection. 
5 , 30kw high-frequency heating equipment is easy to install on the production line, easy to achieve mechanization and automation, easy to manage, can effectively reduce transportation, save manpower and improve production efficiency. 
6 , a multi-purpose machine. The heat treatment processes such as quenching, annealing, tempering, normalizing, quenching and tempering can be completed, and welding, smelting, hot assembly, thermal disassembly and diathermy forming can be completed. 
7 , can be operated manually, or semi-automatic and fully automatic operation; can be used for a long time, or can be used immediately and randomly, which is conducive to the use of equipment in the low power period. 
8 , high energy utilization, environmental protection and energy saving, safe and reliable, workers working conditions, the state advocates. 
9 , easy to use, easy to operate, can be turned on or off at any time, and no need to warm up. 
What is the difference between high frequency induction heating equipment and medium frequency induction heating equipment?

High-frequency induction heating: It has a hardened depth of 0.5 to 2 mm (mm). It is mainly used for small and medium-sized parts that require thin hardened layers, such as small modulus gears and small and medium-sized shafts.

Medium frequency induction heating:

The effective hardening depth is 2 to 10 mm (mm), which is mainly used for parts requiring deep hardened layers, such as medium-modulus gears, large-modulus gears, and larger-diameter shafts , but with different thicknesses .

Six problems in the use of induction heating equipment

After years of research and development of induction heating equipment, our company has summarized several major problems that often occur during the use of induction heating equipment for users' reference.

Induction heating equipment in use problems:

1. When the overheat protection alarm occurs, the possible causes are: too little cooling water, insufficient water flow, poor water quality, and blockage of the waterway;

Second, the work is easy to jump and suddenly stop working, the possible reason is: the workpiece enters and exits the induction coil speed is too fast, there is a short-circuit sparking phenomenon between the workpiece and the induction coil or the induction coil itself, the gap between the workpiece and the induction coil is too small, homemade The shape of the induction coil is not correct;

3. When the water shortage protection alarm occurs, the reason may be: the water pipe is reversed, the pump power or pressure flow is insufficient (the machine cooling pump cannot be used), the water quality is poor, and the waterway is blocked;

4. When an overvoltage protection alarm occurs, the cause may be: the grid voltage is too high, more than 10% of the rated voltage, and used when the power consumption is low;

5. When an overcurrent protection alarm occurs, the cause may be: the shape of the self-made induction coil is incorrect, the distance between the workpiece and the induction coil is too small, the short circuit between the workpiece and the induction coil or the induction coil itself, and the prepared induction coil In use, affected by the customer's metal fixture or adjacent metal objects;

Sixth, when the phase loss protection alarm occurs, the reason may be: three-phase power is seriously unbalanced, three-phase power is missing one phase, air switch or power supply line has one way open circuit.

Is the radiation from the high frequency induction heater harmful?

According to the scope set by the IEEE (International Electro-Electrical Engineering Association):

   1. When the magnetic field is in the frequency range from about 0.1MHz to about 300MHz , the magnetic field generated by the magnetic field exceeds 3 milligauss, which is harmful to the human body. The magnetic field damage of 90MHz to 300MHz , and the downward, the closer to 0.1MHz . The magnetic field, the smaller the damage, the damage to the magnetic field below 0.1MHz , it is even more insignificant. Of course, in the harmful range, its intensity is below 3 milligauss, which is generally regarded as a range.

   2, the electromagnetic wave harm to the 90MHz to 300MHz, 300MHz or more the closer 12000MHz, the smaller the degree of injury, it is thus that, before the "Big Brother" in our use of the frequency 900MHz and 1800MHz, it belongs in the hazardous range. As for the industrial heating electromagnetic movement, the frequency is 17~24KHz , which belongs to the super-audio signal ( 20~25kHz range). Except for some slight noise, other damage to the human body.

   3 , the frequency and principle of industrialized electromagnetic heating is basically the same as that of household induction cookers. Now, household induction cookers have entered thousands of households, but it is undoubtedly doubtful. In fact, the distance between the magnetic lines of the induction cooker is very short, and only 3cm or less has effect on iron. You may wish to do a simple test to increase the bottom of your induction cooker slightly by 1cm . The electromagnetic induction at the bottom of the pot is rapidly attenuated, and our industrial electromagnetic heating, the coil is more than 1500mmaway from the operator , the danger is completely negligible. Excluding.

   4 , modern life is inseparable from electromagnetic waves, and the space we live in is also filled with electromagnetic waves of various wavelengths like sunlight. If there is no sunlight in the earth, everything will lose its life, so the sun is a beneficial electromagnetic wave for people. In addition, there are many infrared devices, which are also beneficial to the human body. Electromagnetically heated electromagnetic radiation is not beneficial, but it does not pose a hazard to the human body. It is tested to be about one-sixtieth of the time when the mobile phone is connected. Can be used with confidence.

Frequency unit conversion: 1MHz=1000KHZ=1000,000Hz

How to choose high frequency induction heating equipment?


Heating type

Application range

Frequency selection

Power selection




Drills, turning tools, reamers, milling cutters, drill bits, etc. and composite welding of different materials on stainless steel pot bottom .

  Principle: The larger the welding volume, the lower the frequency should be. Tools with a volume less than30*30*30 can be used at heights; greater than30*30*30 , medium frequency can be used.  Principle: The larger the diameter of the workpiece, the lower the frequency should be.

It depends on the specific workpiece shape, material, solder, etc.




Fasteners, standard parts, auto parts, hardware tools, copper, twist hot upsetting hot rolling.

Φ 20 or more ,medium frequency (1-20KHZ)

Φ 5-20, high frequency (20-100KHZ)

Φ 5 or less ,UHF (100-500KHZ)

According to the production efficiency, choose the right power , the higher thepower, the faster the speed.Specific can consult the company's technical staff .




Shafts, gears, sprockets, machine tool rail accessories, quenching, etc.

Principle: The shallower the hardened layer is required for the workpiece, the higher the frequency should be. 
Ultra-high 100-500KHZ below1mm

1-2.5mm super audio 20-100KHZ

Medium frequency 1-20KHZ above2.5mm ;

Combined with the shape of the workpiece, quenching method, quenching hardness, hardened layer requirements and materials, etc., you can consult the company's technical staff.




Metal wire pipe annealing, hydraulic fittings, auto parts, knife and pliers, stainless steel pot annealing, etc.

Combined with the requirements of workpiece annealing, annealing speed and materials, you can consult the company's technical staff.



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