1. Finding out satisfied mode with Ec value, Ed value and We value in capacity chart after
result out.
2. Even though it is small weight and the impact cycle per hour is high, it seems that the Ed
value is too high and the We value is too low, relatively.
Even in such a case must choose the model which Ed value and We value within range
simultaneously.
3. Durability of shock absorber remarkably can debase if it depends on only We value without
consideration of number of impact times per hour.
4. Choose one of 40~80% the capacity chart for safety.
5. It must be designed perpendicular to the collided object and shock absorber (In case the angle of declination is more than 1.5 degree, that can cause oil leakage as seal overload.)
6. Desigh to be perpendicular to the weighed direction of object and an axial of shock absorber in case of shaking impact. (Make allowance angle to end of stroke θ2<- 1.5。, in such a case, minimum installation radius shown in the following table, In case of more than 1.5 degree might cause oil leakage.)
* Installation Condition of
Shaking Collision
| MODEL |
S ( STROKE ) |
θ2(ACCEPTANCE ANGLE) |
| SCA 1006 |
6 |
1.5˚ |
| UPA 1410 |
10 |
| UPA 1415 |
15 |
| UPA 2015 |
15 |
| SCA 1420 |
20 |
| SCA 2020 |
20 |
| SCA 2525 |
25 |
Precaution of Circumstance
1. Don't use with pressure, vacuum, or any circumstance different form the pressure of the atmosphere.
2. Do not use in clean room. It might cause air pollution.
3. Do not use over the allowed temperature, because oil leakage may occur as the result of harded, soften and wear of the seal.
4. It can not return smoothy in initial as working oil viscosity rise at temperature below zero in winter. It can work smoothly after working more than 20 times repetition. So keep that in mind in use.
5. Don't use in the circumstance of solvent, as it will corrode the metal and possibly compromise the seal.
6. If possible, avoid using in conditions that have influence on the piston rod directly, or spray, such as cutting near oil, water, various solvents, etc.
Precaution of Installation
1. Make protector when the impact object vibrates.
2. Make the contact point in a straight line and allow slide angle to be less than 1.5 degrees.
3. Avoid damage to the piston rod or threads. Damaged piston rod can cause oil leakage and damaged threads can cause the inner component to deform and loose shock absorption.
4. Replace the shock absorber with a new one when strange colliding poises and vibration occur.
5. When tightening nut, use K portion with a spanner. Take care avoid damaging outer thbe and threads.
| MODEL |
K부 |
MODEL |
K부 |
| UPA 1400 |
12 |
SCA2500 |
23 |
| UPA 2000 |
18 |
SCA 3600 |
33 |
| SCA2500 |
23 |
|
|
1. Check tightening nut and tighten periodically, because the shock abosorber may be damaged when using with loose nut.
2. The lifespan of the shock absorber is Limited. Replace shock abosorber if you hear strange colliding noises or vibration. Continued use of a worm shock abosorber can cause equipment damage.
3. Confirm that the cap is not damaged. Sometimes the cap damage comes first in case of cap attachment type. Change the cap as soon as possible in order to prevent damage.
