EKOHEAT Induction Heating Systems for the 50-150 kHz Range

Ambrell’s EKOHEAT induction heating systems for the 50-150 kHz range provide consistent and repeatable solutions for high-speed heating of smaller parts where the coil size or the part geometry requires high frequency for efficient heating. Among many general applications are shallow case depth hardening, heat treating of steels, and heating of steel, copper, aluminum, or brass for brazing, shrink fitting, forming, curing, and melting.

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 very efficient power conversion and a power factor more than 0.9, utility demand charges are decreased, bringing down monthly energy bills. The EKOHEAT systems are built 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
  • Five-language display suite (EN, DE, ES, IT,  FR)

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


RF Terminal Power (continuous)1 9 14 kW
AC Line Power 10 15 kW
Power Factor 0.92  
Output Frequency 50 - 150 kHz
AC Line Voltage 360 - 520 Vac, 3Ø
AC Line Protection 35 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 NEMA12  
Weight (System) 32 (70) kg (lb)
Dimensions 432 x 616 x 451 (17 x 24.25 x 17.75) WxDxH mm (in)
Flow3 7.6 (2.0) + 2.8 (0.75) l/m (g/m)
Max Input Pressure 5.6 (80) Bar (lb/in2)
Pressure Differential (Range) 2.8 - 5.6 (40-80) Bar (lb/in2)
Max Water Temp 35 (95) °C (°F)

1) Maximum output may vary based on frequency and load conditions
2) Suitable for incorporation into equipment for compliance with Machinery Directive
3) Power supply + workhead caps; required workhead coil flow requirements vary by application

Options and Accessories

The EKOHEAT comes with 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 one’s specified timing requirements.

  • Start-up assistance
  • Pendant station
  • Heat exchanger or chiller
  • Redundant safety relays
  • Auto-tap selection
  • Multi-workhead controller
  • eVIEW serial data reporting
  • External controller (plc)
  • Footswitch
  • Optical pyrometer  (closed-loop temperature control)
  • Front E-stop with retransmission
  • Extended workhead cable lengths


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