End dump Tail Gate Switch

I’m setting up my truck to haul an end dump trailer. My original plan was to use the air line for my sliding fifth wheel to operate the high lift tail gate on the trailer it works but is pretty slow. It’s air up then gravity down, I’m looking for a simple switch to operate it. Can anyone tell me what kind of switch I need I want one that is only air operated not electric to air because I’m doing the work myself and want to keep it as simple as possible any input would be greatly appreciated.