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Voith Aquatarder SWR

Voith Aquatarder SWR

Buses

Braking better with water:

The new secondary water retarder

Safe, economical and sustainable – that’s the first secondary retarder in the world that uses water for braking. Like the Aquatarder, the secondary water retarder also uses the engine’s cooling water as its operating medium. With this, it carries out up to 90% of all vehicle braking operations.
Experience it for yourself: In the new Mercedes Benz Travego Edition 1 and in the new Setra ComfortClass 500.

The facts speak for themselves

The secondary water retarder occupies 50% less installation space than its predecessor, and it is 35 kg lighter. Since it uses the engine’s own coolant as its operating medium, it is also completely maintenance-free: no additional oil or coolant changes and no adjustments are necessary. And the environment is happy to have as much as 80% less brake dust.

Secondary water retarder

Technical data

Step-up ratio i =2.13 / i=1.97
max. braking torque at the propshaft 3 500 Nm
Standard operation Multifunction lever 5-stage
+ function v-const
option: foot control
Operation medium Engine coolant in compliance with Mercedes-Benz operating instructions
Control medium compressed air
Unit weight approx. 42 kg
Nominal voltage 24 V

CAN-Bus-specific RCM (Retarder Control Module)

Features and benefits

  • Higher safety
  • Maintenance-free
  • Low service costs
  • Fewer visits to workshops
  • Less fuel consumption
  • Less emissions

Voith Secondary Water Retarder Wins ECW Innovation Label Award 2013

Aquatarder SWR wins European Transport Award for Sustainability

European Transport Award for Sustainability

The New Retarder for the Travego Edition 1