Supplemental Cooling

Overview

Supplemental-cooling systems on the Airbus A350 and A380 use Galden® heat-transfer fluid and nitrogen back-pressure, so they require specialist ground equipment rather than a generic hydraulic cart. RH Aero’s line, engineered by TEST-FUCHS and supported through our worldwide service-centre network, covers every task, from a full system drain to a quick top-up. For the A350 we supply the fully automatic SCST1 cart and the compact SCST1-TU hand-pump unit, while the A380 is served by the SCSR1-1M1 dual-circuit refill device. All three tools are Airbus-certified under ATA 21-59 and operate between –30 °C and +50 °C, ensuring reliable performance in any hangar or ramp environment.

Use Cases

Supported aircraft

  • A350-900 / A350-1000 with SCST1-FD or SCST1-FD-D for full cycles and SCST1-TU for small-volume top-ups.
  • A380-800 with the SCSR1-1M1 automated refill unit.

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Typical operations

  • Scheduled ATA 21-59 fluid replacement and nitrogen bleed during heavy checks.
  • Post-repair refills after component change.
  • Quick line-maintenance top-ups using the hand-pump unit when power is unavailable.

Benefits

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Fully automated A350 service: The SCST1 cart carries out fill, drain, bleed, replenish and empty cycles, cutting labour and preventing spills.

Task interruption and re-entry: Technicians can pause midway for a nitrogen boost and resume without restarting, saving time and fluid.

Drive options to suit any ramp: Choose the plug-in electric for zero-emission hangar work or the diesel/electric for autonomous flight-line operation.

Hand-pump versatility: The 30 L SCST1-TU uses the same adapters as the main cart and requires no external power, making it ideal for remote stands.

A380 dual-circuit automation: The SCSR1-1M1 manages both supplemental-cooling loops from a single reservoir, with built-in self-tests and multi-voltage power compatibility.

Certified compliance: Every unit is listed in the Airbus GSE manual under ATA 21-59, giving you audit-ready documentation out of the box.

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Why RH Aero

With TEST-FUCHS engineering and RH Aero global support, you get the only Airbus-approved supplemental-cooling equipment for A350 and A380 fleets, backed by onsite training, spare-parts availability and integration with our hydraulic power units and RAT testers. Move fluid, bleed air and log every parameter with confidence, wherever your aircraft lands.

Product Families