Fuel-cell passenger cars through heavy-duty vehicles
Fuel Cell Special Radiator
ATS-R50 / ATS-R80 · vacuum-brazed plate-fin · nitrogen sealed
Cooling circuit
Overview
A fuel-cell radiator built for the coolant quality that stacks require. The circuit keeps impurities below 100 μm and conductivity under 5 μS/cm, is sealed with nitrogen above 0.6 MPa, and uses vacuum-brazed aluminium plate-fin technology with a flux-free welding process.
Key features
- Fuel-cell coolant quality — no impurities above 100 μm, conductivity below 5 μS/cm
- Nitrogen sealed above 0.6 MPa against corrosion and contamination
- Vacuum-brazed aluminium plate-fin core, flux-free brazing
- Corrosion-resistant 3003 or 5-series aluminium
- Winter–summer mode with CAN bus and HMI cuts power consumption
Specification
Technical data
Model selection
| Parameter | ATS-R50 | ATS-R80 |
|---|---|---|
| Applicable vehicle | Fuel cell vehicle | Fuel cell vehicle |
| Matched power range | 50 kW | 80 kW |
| Standard heat dissipation | 55 – 75 kW | 110 kW |
| Conductivity | ≤ 5 μS/cm | ≤ 5 μS/cm |
| Typical dimension (L×W×H) | 1200 × 900 × 243 mm | 1800 × 950 × 400 mm |
| Voltage | 24 V | 24 V |
| Single fan power | 500 W | 500 W |
Customised designs are available based on actual vehicle configuration parameters. Heat dissipation figures are standard values at the stated conditions.
Application
Where it is used
Matched to stack power: 50 kW and 80 kW classes
Winter–summer control extends vehicle range
Clean circuit from the factory — nitrogen sealing and flux-free brazing
Related reading
From the engineering notes
Background on the design decisions behind this component — all articles.
Cooling architecture and the insulation question
Why the coolant loop and the electrical barrier must be designed together, and which components keep them apart.
Isolated DC-DC first, then the coolant piping
The 100 Ω/V and 500 Ω/V rules come from touch-safety limits, not from the converter. Worked numbers for a 500 V stack on an 800 V bus, and what they mean for hose length and rigid tube.
Fuel Cell Special Radiator — product brochure (PDF)
Full specifications, model selection tables and engineering notes. Two pages, English.
Download PDF
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