Induction Heating Equipment

Induction Heating Equipment

COOLDO Induction Heating Equipment offers a controllable and localized heating method to the parts or components with very low cost but creates significant costs savings versus other traditional process heating technologies. According with different heating solutions, COOLD Induction Heating machine suppling the medium frequency series, high frequency series, Ultrasonic frequency for a wide applications like soldering, brazing, heat treating, bonding, melting, crystal growing, hardening, annealing, and shrink fitting.


Control Model:IGBT
Heating Method:Electric Induction
Working ability: 24 hours with full loading
Heating time:According with applicaiton and power choose

Induction Heating Equipment Desciption:



How Does Induction Heating Work?

When a magnetic field changes near a metal or other conductive object, a flow of current (known as an eddy current) will be induced in the material and will generate heat. The heat generated is proportional to the current squared multiplied by the resistance of the material. The effects of induction are used in transformers for converting voltages in all sorts of appliances. Most transformers have a metallic core and will therefore have eddy currents induced into them when in use. Transformer designers use different techniques to prevent this as the heating is just wasted energy. In this project we will directly make use of this heating effect and try to maximise the heating effect produced by the eddy currents.

If we apply a continuously changing current to a coil of wire, we will have a continuously changing magnetic field within it. At higher frequencies the induction effect is quite strong and will tend to concentrate on the surface of the material being heated due to the skin effect.


Parameter of Induction Heating Machine


Series Generator model Max rated input power Max.input current Oscillation frenquency Input Voltage Continues loading rate
M.F Medium frequency CDO-MF-15 15KW 23A 1K~20KHz Three-phase



CDO-MF-25 25KW 36A
CDO-MF-35 35KW 51A
CDO-MF-45 45KW 68A
CDO-MF-70 70KW 105A
CDO-MF-90 90KW 135A
CDO-MF-110 110KW 168A
CDO-MF-160 160KW 240A
H.F High frequency CDO-HF-15 15KW 32A 30K~100KHz Single-phase 220V50/60Hz 85%
CDO-HF-15(split) 15KW 32A
CDO-HF-25 25KW 24A 30K~80KHz Three-phase



CDO-HF-25J 25KW 35A
CDO-HF-35 35KW 50A
CDO-HF-45 45KW 60A
USF Ultrasonic frequency CDO-USF-40 40KW 70A 5K~40KHz Three-phase




CDO-USF-50 50KW 85A 5K~35KHz
CDO-USF-60 60KW 105A 5K~30KHz
CDO-USF-80 80KW 150A
CDO-USF-100 100KW 185A
CDO-USF-120 120KW 220A 5K~25KHz
CDO-USF-160 160KW 260A

Application of Induction Heating Equipment.



Feature Of Induction Heating Equipment:


1),  IGBT inversion technology based LC series circuit .
2),  Phase locking looping technology and soft switch ensure good reliability and realize power and frequency tracking automatically.
3), Diode rectifier cause high power factor more than 0.95
4),  Power can be instantly turned on or shut off with working in 100% load
5),  Perfect protective circuit and cooling system designed.
6), Low energy consumption: converts up to 97.5% above of the expended energy into useful heat. Energy saving 15%-30% compared with SCR induction heating machine.
7), Safety Operating and easy installation.

Application of Induction Heating Equipment:


1), Induction heating machine for various hardware and tools heating such as plier, wrench, hammer, ax,screwing tools and shear .
2), Heat treatment for various automobile and motorcycle fittings, such as crankshaft,connecting rod, piston pin,chain wheel, aluminum wheel, valve, rock arm shaft,semi drive shaft, small shaft and fork.
3), Heat treatment for various electric tools, such as gear and axes.
4), Heat treatment for machine tools,such as lathe deck and guide rail.
5), Hardening for various hardware metal parts and machined parts, such as shaft,gear chain wheel, cam,chuck and clamp etc.
6), Heating for hardware molds, such as small-size mold, mold accessory and inner hole of mold.
7), Annealing of various stainless steel products, such as stainless steel basin,annealed and extruded can, annealed folded edge, annealed sink, stainless steel tube, tableware and cup.
8), Forging of various other metal work pieces, such as round steel, sheet plate, pipe and others.

Video of Gear Induction Quenching Machine:


Induction heating machine Vedio

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