HU 2i Induction Power Supply
The HU Series from RDO Induction is a highly versatile, repeatable, and reliable family of high-frequency power supplies for precision heating, brazing, soldering, shrink-fitting, and heat treating. The series is built on a Series-Parallel HF circuit feeding a compact heat station with dry, Litz-cable connections. The power capacitor mounts inside the heat station and is field-swappable, so the operator can dial in the optimal operating frequency for each part without sending the unit back.
The flagship HU 2i delivers 2 kW true HF output across three frequency bands — 0.25–0.55 MHz, 0.5–1.0 MHz, and an optional 1.0–2.0 MHz range — on a single-phase 208–250 V mains feed. A 7″ full-color touchscreen with a ClickWheel control, dual digital pyrometer inputs, and a smart cooling loop with integrated temperature and water-pressure sensors make it ready for production from day one. Hardwired ON/OFF guarantees true 0 W standby — no phantom loads.
The HU series induction power supplies are ideal for the precision heating, soldering, brazing of small components in bench-top or automated applications.
Major applications include the soldering of electronic components, wire harness assemblies, and RF cable connectors. This HU induction brazing system is also used for the brazing of small assemblies, along with carbide tools and saw blades, not to mention a wide array of heat treatments and precision catheter tipping applications.
HU Series Features
- 2 kW true HF output (HU 2i) and 5 kW (HU 5000+) power supplies
- Three selectable frequency bands: 0.25–0.55 MHz, 0.5–1.0 MHz, and 1.0–2.0 MHz (HU 2i, optional)
- 100% Duty Cycle — built for production
- 7″ full-color touchscreen with ClickWheel (HU 2i)
- Available with 1 or 2 Heat Stations (Dual Heat Station system cannot fire simultaneously)
- Dual digital pyrometer inputs (PYRO 1 / PYRO 2)
- Smart cooling loop with integrated temperature and water-pressure sensors
- Hardwired ON/OFF for 0 W standby; emergency-stop input; direct grounding stud
- Optional Industry 4.0 fieldbus: Profibus, Profinet, or EtherCAT
- Analog I/O, IR-log graphical pyrometer trending, self-optimizing temperature control
- IP31 enclosure
- Standard 1.5 m (HU 2i) leads between the power supply and heat station
- Optional 3-axis support for exact positioning of induction coil
Model HU System Specifications
| MODEL | Output Power | Frequency Range | Input Voltage (50/60 Hz) | Dimensions (W×H×D) | Weight |
|---|---|---|---|---|---|
| HU 2i | 2 kW | 0.25–0.55 / 0.5–1.0 MHz (1.0–2.0 MHz optional) |
208–250 V, 1-Phase, 16 A | Power Supply: 380×180×370 mm Heat Station: 62×95×129 mm |
17.0 kg / 2.7 kg |
| HU 5000+ | 5 kW | 0.25–0.55 / 0.5–1.0 MHz | 400 V, 3-Phase | Power Supply: 350×260×300 mm Heat Station: 115×62×82 mm |
18.0 kg / 2.5 kg |