Many were excited to try out the interactive technology at Caterpillar's booth.
Virtual technology and visual demos were a big part of Joy Global's exhibit.
As the sun flooded the floor, Schroeder offered detailed talked about the products in its line.
The Pennsylvania Coal Alliance was on the floor to share mining's benefits with guests from across the globe.
There was much to see around every corner at the show.
Despite threatening weather in the eastern US, all three days of Longwall USA saw healthy crowds.