Electromagnetic Induction Heater


Electromagnetic Induction Heatersfor heating plastic injection molding machine

Principle of Electromagnetic Induction Heating:

Most of the metal is heated by the high-frequency magnetic field and uses this principle to pass the high-frequency current through the coil, so that the coil generates a high-frequency magnetic field, so that the metal rod in the coil is induced to generate heat. The electrical energy can be converted into metal thermal energy by the above process. During the whole process, the metal rod does not have any physical contact with the coil, and the energy conversion is completed by the magnetic field eddy current and the metal induction.

 Advantages of electromagnetic induction heating:

1.Energy saving and emission reduction (30-85%)

2.higher thermal efficiency

3.Reduced operating temperature

4.warm up fast

5’long service life

6.Maintenance is simple and convenient


What Advantages Does Induction Heater Have Compared With Traditional Heaters?

Advantage Comparison
Electromagnetic Induction HeaterTraditional Heater
Heating PrinciplesElectromagnetic InductionHeating the  Resdistance Wire
Heated PartCharging barrel is heated directly to get higher efficiency ,but the induction coil itself is not heated to guaratte longer using lifeheater itself,then heat transfered to the charging barrel
Surface Temperature & SafetyMax. 60 Degree Centigrade,safe to touch by hands.The same with your heating temperature, Dangerous to touch
Heating RateHigh Efficiency:save 50%-70%warming -up timeLow Efficiency:No time-saving
Energy SavingSave 30-80% Power ConsumptionNo Saving
Temperature ControlHigh precisionLow Precision
Using life4-5year2-3year
Working EnvironmentNormal temperature for workers,easy and comfortableHot,especially for low latitude Area
CostCost-effective,with30-80% energy-saving rate,it takes 6-10 months to recover the cost. The higher the rate is,the less time it takes.Low


Application of electromagnetic induction heater:

1.Plastic rubber industry: plastic film blowing machine, wire drawing machine, injection molding machine, granulator, rubber extruder, vulcanizing machine, cable production extruder, etc.;

2.Pharmaceutical and chemical industry: pharmaceutical infusion bags, plastic equipment production lines, liquid heating pipelines for the chemical industry;

3.Energy, food industry: heating of crude oil pipelines, food machinery, super freighters and other equipment that require electric heating;

4.Industrial high-power heating industry: machine for killing machine, reaction axe, steam generator (boiler);

5.Smelting heating industry: die casting furnace zinc alloy, aluminum alloy and other equipment;

6.Building materials industry: gas pipe production line, plastic pipe production line, PE plastic hard flat net, geonet net unit, automatic blow molding machine, PE honeycomb board production line, single and double wall corrugated pipe extrusion production line, composite air cushion film unit, PVC hard Tube, PP extrusion transparent sheet production line, extruded polystyrene foam tube, PE winding film unit;

7.high power commercial induction cooker movement;

8.Dry heating in printing equipment;

9.other similar industry heating;

Technical Parameters


Technical Parameters

Rated power10KW,3phases, 380V (It can be customized)
Rated input current10KW (14-15A)

Rated output current

10KW (50-60A)
Rated voltage frequency

AC 380V/50Hz

Voltage adaptation rangeconstant power output at 300 ~ 400V
Adapt to ambient temperature-20ºC~50ºC
Adapt to environmental humidity≤95%
Power adjustment range20% ~ 100% stepless adjustment(That is: adjustment between 0.5 ~ 10KW)
Heat conversion efficiency≥95%
Effective power

≥98%(Can be customized according to user needs)

working frequency


Main circuit structureHalf-bridge series resonance
Control SystemDSP-based high-speed automatic phase-locking tracking control system
Application modeOpen application platform
monitorProgrammable digital display
start time<1S
Instantaneous overcurrent protection time≤2US
Power overload protection130% instantaneous protection
Soft start modeFully electrically isolated soft start heating / stop mode
Support PID adjustment powerIdentify 0-5V input voltage
Support 0 ~ 150 ºC load temperature detectionAccuracy up to ± 1 ºC
Adaptive coil parameters10KW  10 square line, length 30~35m, inductance 150 ~ 180uH
Coil to load distance(Thermal insulation thickness)20-25mm for circle, 15-20mm for plane, 10-15mm for ellipse and within 10 mm for super ellipse


Model No.Input VoltageRated PowerInductanceCurrentCoil Wire

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