| While gas springs and hydraulic dampers, specialized | | | | permeability increases and gas molecules may escape |
| types of springs that utilize gas under compression to | | | | through the seal more easily. They are also designed |
| exert force, are produced in various sizes and lengths, | | | | based on the performance guidelines that include cold |
| selecting one depends on two main factors, the | | | | closing and opening efforts, hot closing and opening |
| required spring force and the effective stroke of the | | | | efforts, self-rise and self-close angle, hump, room |
| spring. Application design considerations of the gas | | | | temperature, and damping. |
| springs involves selecting springs with the right sized | | | | Resistance to dents, damage, and abrasion should also |
| cylinder and piston based on the force required for the | | | | be ensured while designing the cylinder and the piston. |
| application. For example, the trunk lid of a car is | | | | Special features, such as external locking and variable |
| supported by two gas springs on either side of the lid, | | | | damping, should also be considered. Safety is another |
| which when compressed produce a force that is | | | | major factor that should be considered while producing |
| roughly equivalent to the weight of the lid. Similarly for | | | | gas springs. As a part of this factor, the suitability of |
| an office chair, the force produced by the gas lift | | | | the spring and the mounting position strength are taken |
| should be a little higher than the weight of the chair, | | | | into consideration. In addition, a secondary locking |
| allowing the user to effortlessly move the chair up and | | | | mechanism may also be incorporated for safety |
| down. Furthermore, to prevent buckling the buckling of | | | | purposes, if required. |
| the gas springs, the force produced should always be | | | | While mounting a gas spring, care should be taken to |
| in line with its centerline, particularly for a slender gas | | | | ensure that they are mounted in an upright fashion with |
| spring device. | | | | the piston rod pointed downwards. This is to ensure |
| Another factor to consider while selecting or designing | | | | that the rod seal is kept lubricated at all times. If the |
| a gas spring is the ambient operating temperature, as | | | | spring is to be mounted at an angle, care should be |
| both extreme hot and cold temperatures affect the | | | | taken to ensure that the level of the lubricating oil is |
| operation. The change in temperature affects the | | | | sufficient for the rod seal to be always lubricated |
| pressure that a gas spring can exert and consequently | | | | during the operation. |
| the output force. At very high temperatures, the seal | | | | |