Yes, thank you. I am very much aware of what you're saying, I've been designing machinery for 30 years now and of course I would never use the contacts themselves to take care of alignment. What I meant to say is that I'd use the shell itself to perform that function, and adding a couple of male-female hardened SS pins to the assembly is also on the table.nooooo....
you don't want electrical or pneumatic connectors to take care of alignment.
you would need to add mechanical locating features that align mating sides before they engage.
topically those would be round dowels with some tapering...
so first 20-30% of travel is just approach
next 20-30% of travel is locating
and then rest of the travel is mating of connections.
here is a sketch of such vampire teeth (usually metal) and counterpart blocks (usually plastic).
View attachment 180925
Only thing I don't like so far about Harting is its pneumatic connectors, they don't look hefty enough for my taste. I think there are a couple of distributors down here that I could go visit and then see things personally. I'd get a much better feeling of what's available that way.