# Sharing load between linear actuators

I'm building a motorized standing desk and am trying to calculate what linear actuators I need. If I have 4 linear actuators (one on each corner) each able to lift 25kg does that mean that the desk would be able to lift a full 100kg?

In other words, when linear actuators are sharing a load is the total drive force equal to the sum of the actuators individual drive force? Or is it more complicated than that?

• Is the weight on the table distributed equally? But if you simplify the problem then yes they sum up. – joojaa Dec 28 '18 at 21:02
• The weight is mostly centered. – RedHatter Dec 28 '18 at 21:08

The load to the right hand side pair of legs $$is = l00*x/X = R_{load}$$ $$R_{load}*y/Y =load\ on\ the\ upper\ right\ leg.$$ We repeat this process and find the individual loads for each leg.