Welcome and Patroit76 said well. I feel certain the "cans" you are referring to are Al(aluminum) and are nonferrous which is why they are weighed on the small scale.
If its a yard that cares for their customers the person who runs the scale should take the time to educate you or at least answer your questions.
Read the old threads, learn the difference between clean and dirty metal. The more you read the more you will recognize opportunities. 73, Mike
Bookmarks