EKOHEAT Induction Heating Systems for 5-15 kHz Range

Ambrell’s EKOHEAT induction heating systems for 5-15 kHz range offers repeatable and reliable solutions for heating larger parts or for heating with large coils. Among the many common applications are heating of hard-to-couple parts, heat treating steel, preheating for forging of copper, steel, aluminum, or brass, deeper heat penetration, crystal growing, and melting in crucibles.

The versatile EKOHEAT power control system provides users with efficient and precise heating of parts, fast tuning, power control within 0.2% resolution, and a user-friendly, easy-to-read front panel. Remote control is achieved using 0-10 V, 4-20 mA inputs, 24 V controls, RS485 serial port, and remote E-Stop input so integration with your automated production lines is easy. The EKOHEAT technology enhances return on investment by decreasing energy usage compared to gas-fired and resistive heating methods.

Flameless, non-contact induction heating lowers energy waste by directing energy solely on the part and zone to be heated. With highly efficient power conversion and a power factor greater than 0.9, utility demand charges are decreased, bringing down monthly energy bills. The EKOHEAT systems are engineered for efficient use of cooling water, thus additionally lowering the user’s operating costs. This is a water-cooled system, needing connection to a heat exchanger or other ways of dissipating heat.

EKOHEAT at-a-Glance


  • Efficient heating of many part geometries,  compositions, and sizes
    • Multiple tap transformer configurations
    • Multiple capacitor configurations
    • Voltage or power control
  • Through-Curie heating
  • Repeatable, consistent heating, agile frequency tuning
  • Movable workhead; up to 30 m (100')
  • Remote operation or logging with RS485 port
  • Sub-second to continuous cycle times
  • Accepts international AC line voltages

Easy to Use

  • 10 ten-step heating profiles
  • User-friendly operator front panel controls
  • System configuration from front panel
  • Overload-tolerant output management
  • Cycle timer, peak and short-cycle data capture
  • Seven-language display suite (EN, DE, ES, IT, PT, FR, PL)

The EKOHEAT is CE marked and manufactured at Ambrell’s IS0 9001:2008 certified facility.


SPECIFICATION 20/10 35/10 50/10 UNITS
RF Terminal Power 20 35 50 kW
AC Line Power 23 41 58 kVA
Power Factor 0.92  
Output Frequency 5 - 15 kHz
AC Line Voltage 360 - 520 Vac, 3Ø
AC Line Protection1 50 80 100 A
Display LCD Monochrome, 240 w x 128 h Pixels  
Serial Communication RS485 Standard (RS485/232 Converter Optional)  
Process Timer 0.01 - 10000 sec
Max Ambient Temp 45 (115) °C (°F)
Compliance2 CE EN60519 EN61326-1  
Ingress Protection IP54, NEMA 12  
Power Unit Dimensions 436 x 721 x 762 (17.2 x 28.4 x 30) WxDxH mm (in)
Weight 75 (165) kg (lb)
Flow3 9.5 (2.5) l/m (g/m)
Pressure Differential (Range) 2.8 - 5.5 (40-80) Bar (lb/in2)
Maximum Input Pressure 5.6 (80) Bar (lb/in2)
Max Water Temp 35 (95) °C (°F)

1) Fast-acting fuses
2) Suitable for incorporation into equipment for compliance with Machinery Directive
3) Power supply; required workhead coil flow requirements vary by application
4) Assumes 70% coil losses

Options and Accessories

The EKOHEAT consists of a front panel programmable controller for monitoring, diagnostics, timer and power-level control, and system configuration. It is possible to configure up to 10 ten-step heating profiles to regulate power levels over your specified timing requirements.

  • Footswitch
  • Pendant station
  • Cooling systems
  • Auto-tap selection
  • Start-up assistance
  • Redundant safety relays
  • Complete spare parts kits
  • External controller (PLC)
  • eVIEW serial data reporting
  • Front E-stop with retransmission
  • Extended workhead cable lengths
  • Broadband frequency range (2-15 kHz)
  • Optical pyrometer  (closed-loop temperature control)


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