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Siltrax Fuel Cell Stacks

Siltrax fuel cell stacks use proprietary silicon bipolar plate technology to deliver compact, lightweight, high-performance solutions for hydrogen applications. Advanced architecture provides exceptional volumetric and gravimetric power density, maximizing power in a smaller package. Our adaptable silicon platform enables rapid customization to customer requirements, offering unmatched flexibility and development speed.

Compact, lightweight Siltrax fuel cell stack held in hand — high power density in a small package.

High-Power Density Fuel Cell Stacks Designed for Performance, Flexibility, and Rapid Customization

Fuel Cell Product Comparison

C2G5G20G100
Power Range (kW)2-83-1010-3030-150
Fuel TypeHydrogenHydrogenHydrogenHydrogen
Volumetric Power Density*3.7813.417.318.33
Gravimetric Power Density*2.1312.95.227.70
Cooling MethodAir-cooledLiquid-cooledLiquid-cooledLiquid-cooled
Operating Temperature (°C)40-6060-6575-8365-88
Stack Dimensions216 x 155 x 186 (Fan Included)156 x 78 x 150156 x 156 x 114210 x 210 x 363.3
Weight (kg)3.48 (Fan Included)2.143.8715.9
Custom Configuration AvailableYesYesYesYes
Exact specifications available upon request based on application requirements.
1. The power density figures are for cell block only, excluding endplates and fastening system.

Why Power Density Matters

Technician installing a compact fuel cell stack into the tight payload bay of a carbon-fiber drone, showing how high power density saves space and weight.

In many fuel cell applications, every kilogram and every cubic centimeter matters. Higher power density enables:

  • Smaller system footprint
  • Reduced overall weight
  • Greater installation flexibility
  • Improved mobile platform integration
  • Higher power output within the same package size