Unloader for excavators

A small building in the form of a grid in the ground or something like a crusher standing on the surface. It allows excavators to directly unload ore into it, which will then move along the conveyor, which allows trucks to be completely excluded from the mining process if necessary.

This would be an awesome addition, especially if they let you load the material from that into a train car to move to a more centralized sorting complex.

Well, actually that's literally his main goal. So that you can load trains directly