simatherm IH 025 VOLCANO

The lightest portable induction heater in the world

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The lightweight portable device with excellent performance

With a weight of only 3.5 kg, the simatherm IH 025 VOLCANO is the lightest portable induction heater in the world. The patented technology enables outstanding heating performance from an extremely light structure. You can use it to heat rolling bearings with an inner diameter as small as 20 mm up to on outer diameter of 160 mm and a weight of up to 10 kg.

  • Portable, compact and very light (3.5 kg) - comes in a practical carrying case
  • No support yoke required – simply place the workpiece on the device
  • A bearing weighing 5 kg can be heated to 110°C in under four minutes
  • Predictive Temperature Control (PTC) for automatic temperature monitoring
  • Automatic demagnetization
  • For workpieces with a minimum inner diameter of 20 mm up to a maximum outer diameter of 160 mm
  • For workpieces weighing up to 10 kg
  • Multi-stage power reduction for heating smaller parts
  • Silent in operation
  • 3 year manufacturer warranty

Product images

Scope of delivery



  • 1x simatherm IH 025 VOLCANO
  • 1x User manual
  • 1x Temperature probe
  • 1x Carrying bag
  • 1x Protective gloves
  • 1x Power cord

Technical data

simatherm IH 025 VOLCANO


Heaters for small workpieces

Voltage V / Hz / power

220 – 240 V / 50 – 60 Hz / 1.5 kVA
110 – 120 V / 50 – 60 Hz / 1.15 kVA
100 V / 50 – 60 Hz / 1.0 kVA


Maximum weight 10 kg
Bore diameter From 20 mm inner diameter to 160 mm outer diameter

Temperature control

Range 20 – 180 °C (68–356 °F)
Magnetic probe yes, type K
Accuracy (electronic) ± 3 °C to 110 °C (± 6 °F to 230 °F)

Time control

Range 0 – 10 minutes, in steps of 0.1 minutes

Maximum temperature (approx.)

180 °C (356 °F)

Thermometer mode


Bearing temperature mode


Power reduction

8 levels/ 10-20-30-40-50-60-80-100% (at each level, the performance can be additionally halved)

Automatic demagnetization / residual magnetism

yes / < 2A/cm

Suitable for heating sealed bearings


Suitable for heating pre-greased bearings


Suitability for precision bearings


Error guide codes


Thermal overload protection


Control panel

Keyboard with LED-display

Dimensions (LxWxH)

340 x 250 x 64 mm (over the cone 121 mm)

Overall weight

3.5 kg

Housing material


Cooling fan


Industry target groups and applications

Fabrication and assembly

  • General mechanical engineering
  • Gearbox construction (vehicles and industry)
  • Pumps
  • Hydraulic equipment
  • Electric motor construction
  • Conveyor and conveying systems

General operations maintenance

  • Metal processing industry
  • Paper and cardboard factories
  • Textile industry
  • Larger printing plants
  • Food industry
  • Building services
  • Vehicles (buses, trucks, rail vehicles)
  • Construction machinery
  • Forklifts, storage equipment / lifting devices

Typical components which can be heated with the VOLCANO

  • Rolling bearings
  • Gears
  • Gear rims
  • Shrink rings
  • Pistons
  • Bushings
  • Sleeves
  • Clutch parts

Materials which can be heated well

  • Structural steel
  • Ball bearing steel
  • Grey cast iron
  • Cast steel

Application images



simatherm Brochure
User Manual
Technical data

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