Vertical and Horizontal Hogs, Hammermills, Re-Sizers, Shredders, Veneer Hogs, Disc Screens, Oscillating Screens, Vibrating Screens, and Trommel Screens. WSM manufactures the most rugged, reliable wood fiber and waste processing machinery available. Count on WSM’s 70+ years of experience to deliver the best solution. Tough. Reliable. Built to Last. (less)