| The TF25SA is an innovative hydraulically
damped single axle suspension for axle loads up to 25.5 tonnes
and can operate at a maximum speed of 160 KPH.
Entering operations in 2000, its design is based upon the
TF25. It can be fitted retrospectively under two axle wagons
retaining the existing brake system.
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The TF25SA has the following advantages:
- Low track forces producing low bogie wear and reduced
maintenance
- Track friendly - low track wear
- Freight friendly - low vertical acceleration
- Low noise
- High speed of 160 KPH
- High axle loads of up to 25.5 tonnes - anticipating future
axle-loads allowances
The TF25SA is in use with the Swedish postal service, operating
at the maximum speed of 160 KPH, compared with 100 KPH for
conventional suspension systems.

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