High frequency generator HU 3i

HU 3i

Induction IoT, intuitive handling, IP54 – the three i’s of the HU 3i high-frequency generator significantly increase the success of your production. With this converter, you can keep an eye on the entire induction process thanks to the smart module for quality monitoring which is networked via a CAN bus.

Based on monitoring values that are entered, the HU 3i automatically decides which limit values are appropriate using a selflearning algorithm. If there is an error message or the limit values are not upheld for some reason, the process is automatically stopped, resulting in a considerable reduction in waste and defective parts while optimising your productivity. It is digitally controlled via a Linux industrial-based operating system.

The operation of the high-frequency generator is both intuitive and easy because of the variable input options. An integrated temperature controller allows the target temperature of the workpieces to be easily set.

The HU 3i is IP54 rated and thus offers a high level of equipment safety, which guarantees that the generator can be used for a long time.

Improve sustainability in all areas with the HU 3i.

Technical Information HU 3i Download (PDF)

Benefits of quality monitoring

  • Wide range of applications (soldering, hardening, joining, annealing, etc.)
  • Intelligent detection in self-learning mode
  • Monitoring of actual values by converters without big data connection
  • Automatic termination of the induction process in the event of an error message
  • Part monitoring, even with very fast heating times of less than 100 ms
  • Intuitive operation and integrated temperature controller

Technical benefits

  • Improved networking possibilities through industrial interfaces
  • Curve evaluation via fast control with cycle times of 1 ms
  • Optional addition of data logger
  • Optional addition of various bus systems
  • Further technical benefits of the HU series
  • Device protection class IP54

Himmelwerk IOT

Our converters learn along with us

Industry IoT is still the current challenge of our time. Induction IoT is how we respond to this. The opportunities of digitalisation inspire us, because they can help make induction heating even more sustainable and forward-looking.

More about Himmelwerk IoT

Get in touch with your personal contact - our engineers are looking forward to hearing from you

Daniel Schulte

Head of International Sales

Overview products

Since 1950, Himmelwerk has shipped more than 19,000 high and medium frequency converters worldwide.
By how much can you reduce your CO₂ emissions per year? Let’s have a look.

Assumption 1: 25% of your converters are still operational.

Assumption 2: They have an average output of 6 kW and thus a power consumption of 7 kW.

Assumption 3: These generators are operational 8 hrs per day and 5 days per week.

Assumption 4: Inductive heating uses up to 40% less energy than conventional methods. Let’s assume 30%.

With these assumptions, our calculation would look like this: Daily energy consumption: 8 hrs x 7 kW = 56 kW

Energy savings per day: 56 kWh / 0.7 = 80 kWh; 80 – 56 = 24 kWh

Total energy savings per day: 24 kWh x 4,750 converters = 114,000 kWh

Total energy savings per year: 220 working days x 114,000 kWh = 25,080,000 kWh

Conversion factor kWh/CO₂: 1 kWh is equivalent to approx. 0.485 kg of CO₂ (source: German Federal Environmental Agency, Climate Change 15/2022)

CO₂ reduction per year: 25,080,000 kWh x 0.485 kg = 12,163,800 kg