SW 436 — Synthetic hydraulic fluid for high-performance systems
Superior reliability for hydraulic systems on railway rolling stock.
General description:
SW 436 is a synthetic-hydrocarbon hydraulic fluid with ISO 46 grade, engineered to deliver high performance even under extreme temperature and pressure.
Thanks to advanced anti-wear, antioxidant, and anti-foam additives, it ensures excellent protection of mechanical components and safe, efficient operation of railway hydraulic systems.
Tested and qualified by Faiveley laboratories, it stands out for stability, seal compatibility, and effectiveness against foam formation.
TB 436 is ideal for:
Brake control units
Car-body levelling units
Elevators and hydraulic platforms on rolling stock
High-pressure railway hydraulic systems
Operating temperature
−30 ÷ 180°C
Viscosity grade
ISO VG 46
Viscosity at 100°C
8.8 cSt
Viscosity at 40°C
46.4 cSt
Viscosity index
172
Kinematic viscosity at 40°C after Sonic Shear
44.4 cSt
Viscosity index after Sonic Shear
170
Sonic Shear Stability at 40°C
4.5 %
KRL Shear Stability (20 h at 100°C)
9.2 cSt
FZG Failure Load Stage
> 12
Density at 15°C
847 kg/m³
Pour point
< −40°C
Flash point
220°C+
SW 436 is indicated for hydraulic systems installed on railway rolling stock, such as brake units, car-body levelling systems, platforms, and other equipment subject to high pressures and wide thermal excursions.
It is compatible with elastomers, joints, and seals commonly used in hydraulic circuits.
For safety information, refer to the Safety Data Sheet (SDS) available on request.
The product can be ordered in the following packaging:
• 20 L can
• 200 L drum
