A manual force of 2. How to read the 2. You can see that in the graph next to the blue square. It has been decided to call the force negative to close the cover and positive to open the cover. The blue square is on the lower blue line, because the gas spring is inserted and that it is therefore heavier than sliding out.
So in Nm Newton meter the hand force at the end of the cover is That is also the difference between the red square moment of the gas springs in Nm and the green square moment of the cover in Nm. Red is namely at approx. The blue arrow at the end of the cover shows the force that you have to press with your hand to close the cover. This is the case if the blue arrow points in the direction of closing this will normally be the case.
If the arrow is in the direction of opening, something is probably wrong. The cover will then not remain open on its own. A hand will also be visible, because then the cover must be supported by hand to prevent it from slamming. The selected gas spring is probably too light for the cover with the selected force.
This requires extra attention. The blue arrow on the end of the cover now shows the force with which you have to press manually to open the cover. This is the case if the blue arrow points in the direction of opening this will normally be the case. If the arrow is in the direction of closing, something is probably wrong. The cover will then not remain closed by itself. A hand will then also be visible, because then the cover must be kept closed by hand, so that the cover does not open again automatically.
The selected gas spring with the selected force is probably too strong for the cover. If all data entered in step 1 matches the actual situation, it is better not to check this box. The center of gravity will then be calculated automatically.
The center of gravity black-and-white sphere in the simulation will be near the center of the cover. Only if the center of gravity of the cover is somewhere else, you can indicate where this should be located in this extra option.
Try to determine this as precisely as possible and enter this at this step. At the x position in mm you can enter where the center of gravity is horizontally relative to the pivot point of the cover, if you keep the cover horizontal.
With a normal rectangular cover of mm long, the default value will be mm. If, for example, the cover is slightly weighted at the end, you must therefore increase the x position, so that the center of gravity also lies a little more at the end of the cover.
At the y position in mm you can enter where the center of gravity is vertically relative to the pivot point of the cover, if you keep the cover horizontal. With a normal rectangular cover of 25 mm long, the default value will be 13 mm rounded. For example, if something is mounted on top of thecover, you need to increase the y position.
At step 2 there are also two rotate buttons. With these buttons you can rotate the gas springs both to the left and to the right. The function of the gas springs will then be exactly the same.
The gas springs are rotated in such a way that the hand force remains exactly the same. This can be very useful to mount the gas spring in a different location than shown, while the behavior of the cover remains the same as calculated. With the calculation tool you can calculate a gas spring by rotating the gas spring degrees around the pivot point of the bed in step 3.
The simulation specifies the maximum force that will be applied to the hinges of the cover when the gas springs are mounted. By placing gas springs, more is required of the hinges. The force that appears here is an indication of how strong the hinges should be. You may need to install stronger hinges. You can read more information about the force that will be applied to the hinges of the cover and how this can possibly be absorbed here.
If the simulation already shows exactly what you wanted, then in principle you do not need to change anything and you can accept it for notification. However, in step 3 you can also fine tune the calculation so that it is even more as you wish. There is not just one solution. There are many solutions.
If you change something in step 3, you do not have to click on calculate again in step 2. The simulation and the calculation will also change automatically. What information is in step 3 and what can possibly be changed will be explained here. This is the type of gas spring that is selected together with the price. The number 8 stands for 8mm diameter rod, the number 19 stands for 19mm housing the black part of the gas spring and mm stands for the stroke of the gas spring so the length of the rod that can retract.
If you are going to calculate a gas spring, and the proposed gas spring is quite expensive, you can also select a cheaper gas spring that has more or less the same length as the proposed gas spring. So possibly a gas spring with the same diameter but then a slightly longer or shorter stroke, or a gas spring with a different diameter.
The larger the diameter, the more force the gas spring can have. The can be up to N, the can up to N, the can up to N, the can up to N and the can up to N. In general it holds that the longer the gas springs so with a larger stroke the less force on the hinges of the cover. Often a slightly longer or slightly shorter gas spring will make little difference to the result. You can always check that in the simulation after you have selected the other gas spring.
Once you have selected another gas spring, the calculation tool will immediately calculate with this gas spring. You cannot see the calculated force here. You can only see this on the order confirmation. For the , and this is done in steps of 20N, for the it is done in steps of 10N and for the it is done in steps of 50N.
In the simulation you will immediately see what happens with the different hand forces. So it is often the case: the lighter the cover opens, the heavier the cover closes, and vice versa. This is the stroke of the gas spring that will not be used. The minimum unused stroke is 10 mm. There is always room for a little play if the gas springs are not mounted to the mm. Sometimes it may be convenient to increase this distance.
This is the case, for example, if the place to mount the gas spring is better. However, the smaller you choose this value, the more you make useful use of the stroke of the gas spring. We therefore advise you to stay close to 10 mm. Choose here which suits you best. Please note that some choices are not actually possible because the gas spring and the cover then collide.
Gas springs are the ideal choice for cabinet doors and lid supports that open upward. Gas springs provide an excellent solution for opening any hinged panel.
Door, window and lids can be raised and kept open hands free. Our struts have threaded removable ends. You can still see all customer reviews for the product … Before placing the box on the truck, adjust the gas struts to the lowest position. Tool Box Lid Gas Shocks 9 out of 10 based on ratings. Item specifics. Placement on Vehicle:. Shipping and handling. The seller has not specified a shipping method to Germany. Contact the seller - opens in a new window or tab and request shipping to your location.
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