Choosing  the  right  force  – metric

Gas Springs are typically used for assisting in lifting a lid as well as holding it open, similar to how a hatchback on a car operates. They are also used on access covers, doors, windows, conveyors, adjustable table and seats, and more.

All gas springs contain pressurized nitrogen gas as well as hydraulic fluid that lubricates the seal and provides slam-resistant dampening at the end of the stroke. You should store and install gas springs rod-end down for longer service life.

If you need a gas spring but you don’t know the force needed, the most accurate way to determine that force is to calculate it using the formula below.

Calculating force

Gas spring force calculation

G = the weight of the supported object (KG)

L=The center of gravity distance of the supported object (mm)

b=parallel distance between gas spring and hinge (mm)

n=number of gas springs used

F1= gas spring support force (N)

P≈Installation distance of the supported object (2/3L)

The point P is recommended to be installed between the G center point and the hinge position, which is convenient for the size design and strength value of the gas spring.

Estemating force calculation

The force changes according to where you want to install the gas spring. In Fig. B several installations of the gas springs are shown. For the estimated force information of these gas spring installations please see thd example below.

Example:

If weight of lid = 250N

1= Use a 500N force gas spring

2= Use a 250N force gas spring

3= Use a 125N force gas spring

*NOTE: If you use two gas springs, divide the force in half.

The optimal position for a gas spring is usually halfway between the hinge and the center of the object you are lifting (force should be approx. twice the weight of the lid). You can use a shorter spring to reduce the chance of the spring obstructing access.

Gas springs can lose pressure over time, so it is best to choose a force approximately 20% greater than needed.

If you are not sure how much pressure to choose, please contact WINSON GAS SPRING, let us know the required installation distance and the weight of the lid, we will calculate the appropriate gas spring pressure for you.

Winson custom manufacturing all kinds of gas springs. Our factory has advanced automatic and semi-automatic production lines and testing equipment. Relying on science and technology, the whole computer design, constantly develop and produce high and practical gas springs. Products in aviation, automobile, motorcycle, machinery, medical equipment, furniture, cabinets and other fields are widely used.