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Vane dampers

FYT-FYN-LA3 Series
Bansbach vane dampers and dashpots are used to dampen drives, control speed, and many other applications. Our rotational viscous dampers are maintenance free and the most durable units on the market. Bansbach silicone oil viscous dampers are available in either fixed rate or adjustable models. On adjustable vane dampers adjustment is made with an integrated set screw.
The damping direction of the vane dampers with continuous rotation can be clockwise, counter clockwise, or in both directions. In vane dampers with continuous rotation, a fluid damping is produced by the shearing or braking force of silicon fluids resistance between the surfaces of a rotor and a stator. The damping moment is determined by the viscosity of the fluid and the size of the orifice or gap. The damping characteristics can be customized by changing the viscosity of the silicon fluid or by changing the structure of the rotor and stator. vane dampers life-cycles are typically in excess of 50,000 cycles. The service life may be significantly higher or lower, depending on the application. After extended life cycles the dampers still produce over approx. 80% of their original damping moment.
Model Max. torque Reverse torque Damping constant Max. angle Operating temperature Weight Body and cap material Rotating shaft materialOil type
FYT-LA3 40 Nm (400kgfcm) 10~60 Nm/(rad/sec) Both directions 210° 0 ~ 50°C 1.75kg Zinc die-cast (ZDC) Alloy steelSilicone oil
FYN-LA3-R Clockwise
FYN-LA3-L Counter-clockwise
Damper characteristics vary according to the ambient temperature. In general, the damping constant decreases as the temperature increases, and the damping constant increases as the temperature decreases. This is because the viscosity of the oil inside the damper changes according to the temperature. When the temperature returns to normal, the damping constant will return to normal as well.  characteristics
The damper's working angle is 115°. Rotating the damper beyond this angle will cause damage to the damper. Please ensure that an external stopper is in place.
FYT, FYN-LA3 series are torque-adjustable types. Turn the damping adjustment screw located on the back of the main body by inserting a slotted screwdriver. The damping constant increases when turned to the + direction (right). The damping constant decreases when turned to the - direction (left).