hay-press

noun, U.S., a press for baling hay (“hay, n.1.” OED)

“My dad had what they called the old fashioned hay-press for baling big square bales of hay.”

“I just remember Dad had a hay-press. The horses would walk around in a circle, and they would drive it on a big arm and then press it in the bale.”

“Would it be loose hay or pressed into bales?”
“Pressed into bales, yeah. They used to press the bales themselves. They had a hay-press.”