Vane Damper
FYT /FYN-LA3 Series
I
Specifications
Model
Max. torque
Damping constant
Damping direction
FYT-LA3
Both directions
FYN-LA3-R
40N·m
10~60N•m/ (rad/sec)
Clockwise
-------------------------------
(400kgf·cm)
FYN-LA3-L
Counter-clockwise
Note) Measured at 23'C±2'C
*Max. angle
* Operating temperature
*Weight
* Body and cap material
* Rotating shaft material
*Oil type
210
°
O~SQ°C
1. 75k g
Zinc die-cast (ZDC)
Alloy steel
Silicone oil
Torque ad·ustment screw
I
How to Use the Damper
1. 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.
(%)
E 200
�
5·
� 150
ln
Q.
::f
100
<D
50
5·
0
10
20
Temperature characteristics
of the damping constant
30
40
50
["CJ
Ambient temperature
(78)
Rotor position
indicator
2. When using a damper on a lid. such as the one shown
in the diagram. use the following selection calculation to
determine the damper torque.
Example)
Lid mass M : 20kg
Lid dimensions L : 0.4m
1
Gravity Center Position : Assumed as
½
------'------'¥
Load torque : T = 20X0.4X9.8+2
=39.2N·m
3. 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).
Torque adjustment screw
