Recycling Equipment Inc Wood Grinder 40hp, Used low speed wood shredder, 40HP used hopper type shredder, top hopper feed shredder, Hammer Mills and Hogs, Hogs and Hammer Mills used Recycling Equipment Inc. Wood Shredder, Wood Grinder 40hp, dump and run Low RPM rotary industrial shredder/grinder, Model# LD3540, 40HP, 460 volt.