Can this mechanism be further optimized with 2 small pneumatic cylinders instead of 1 big cylinder? 2

[Imposter666]

This lifter I have designed is lifting 100lb weight 300mm up from a surface and transferring it to another station. As you can see the the middle gripper is supported by LM guides at the ends. It is lifted by a single 80mm dia cylinder at the center. Originally I had 2 equal sized cylinders at each sides, but I was concerned that if one cylinder moves slower due to deteriorated seal or something, it might cause jamming on the LM guides due to imbalance of forces. I am personally not a big fan of this single cylinder sticking out like an antenna in the middle. I was wondering if there is a way to make 2 small side cylinder work instead of this big center cylinder.

 

[dvd]

Another lifting option would be machine screw actuators, or ball screw actuators depending on required speed, connected via miter gear boxes. Either translating screw or rotating screw units could be made to work.

 

[MintJulep]

I think this new layout is bad for a lot of reasons.