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Some Cautions Or Warnings Before Installing Rotary Dashpot

Jan 22, 2021

Before installing Rotary Dampers, We should obey some rules before installation, or it is possible to have emergency to the users life or serious injury when the product is unavoidable.

installing rotary dampers

1.The design engineer or the decision maker need to check for the compitability of the rotary  damper .
The design engineer will make decision for its pecification, after taking damper torque test and life cycle test.


2.Do not use the damper out of its specification.

Any use out of the specifiction of rotary dashpot may cause malfunction or damage to products.


3.If there is any following conditions or environment, pelase consult with us for the safety measures:

1) Operate outside of the request of product catalog, use in environments other than the environment, outdoors, and under direct sunlight.

2) The operation of atomic energy, railways, ships, and machines directly related to vehicle movement, aerospace, military, medical related, direct contact with food and beverage equipment, combustion devices, direct impact amusement devices that impact people and property, emergency circuit breakers, press machines, and other predictable major impacts on people and property, and are used under machines with higher safety requirements.


4.Do not throw the rotary dampers into fires.

Silicone oil is sealed inside the viscous rotary dashpot, and there is a danger of burning and explosion when thrown into the fire.


5.Do not operate without sufficient mounting strength

Operating with insufficient mounting strength may damage the main machine and cause injuries. Ensure sufficient mounting strength of load torque x safety factor.


6.Do not operate without an external stopper

Use within the damper damping angle. Do not use the damper itself as a stopper by setting the rotational limit position of the rotating shaft as the resting position of the rotating object. Using the damper itself as a stopper may damage the damper and consequently damage the main machine, and it may also result in injuries.


7.Do not use if the maximum operating torque is exceeded

●Using this rotary damper beyond the maximum operating torque may cause an oil leak, reduced durability, and damage to the shaft. This may damage the damper and consequently damage the main machine, and it may also result in injuries. Do not exceed the maximum operating torque when using this product.

●Set the external stopper to the operating angle before use.


8.Do not operate outside the operating temperature range

Using this product outside the operating temperature range may cause an oil leak and torque problems. Use this product within the operating temperature range.


9.Working Enviornment

●This product cannot be used in a vaccum or under high pressure, as this will cause damage to the main machine.

●Do not use in an environment where chips, cutting oil, water, etc. can come in contact with the linear damper. This will result in a malfunction due to an oil leak caused by damage.


10. Do not discard oil more than is necesssary

Discarding the oil contained in dampers more than is necessary will pollute the environment.

Dispose the oil according to laws concerning waste management and cleaning.


11.Radial load to the shaft

Applying load to the rotating shaft (gear) in a radial direction may cause an oil leak, torque problems, and damage to the shaft (or to the gear if the gear is used).


12.Thrust load to the shaft

Applying load to the rotating shaft (gear) in a thrust direction may cause an oil leak, torque problems, and damage to the main unit (or to the gear, or cause the gear to become disengaged, if the gear is used).


13.When assembling, attach the rotarydampers gear to the opposing arm (gear) as parallel as possible. 


14.Using the product above its maximum rotations

Using this product above its maximum rotations may cause an oil leak, torque problems, and damage to the rotating shaft.


15.Please refer to the catalogue for the rotary damper maximum rotations.

(*If you are going to exceed the maximum rotations when using this product, please contact our sales department.)

*Using the product outside its operating temperature range

Using this product outside the operating temperature range may cause an oil leak and torque problems.

Please refer to the catalogue for the products working temperature range.

(If you are going to use this product outside its operating temperature range, please contact our sales department.)


16.Using the product above its maximum cycles

Using this product above its maximum cycles may cause torque down and an oil leak.


17.Please refer to the catalogue for the rotary damper maximum cycles.

(If you are going to exceed the maximum rotations when using this product, please contact our sales department.)


18.Over-tightening of mounting screws

Over-tightening the mounting screws when installing a rotary damper may cause damage to the main unit.

Based on the types and sizes of the screws used, please apply an appropriate tightening torque to tighten the screws.


Toyou Industry is not responsible for any secondary accidents caused by a rotary damper. The user should implement preventative measures against such secondary accidents.