Used Hammer Mills for sale. Fitzpatrick equipment & more ... 60 HP Williams Hammer Mill 15508. Manufacturer: Williams Used Williams Crusher, Williams & Pulverizer Co. hog mill with 2 rows of 2 swinging hammer s and 2 rows of 1 swinging hammer, screen size 1/8 mesh, has top feed inlet of 19" x 12", side bottom discharge of 36" x 1...