Logosol Sawmills; Head Rig Slabber. Sawmills Portable. Sawmills Stationary. Slabbing Mills. Refine Results ... 04 Dec,2018 When it comes to heavyduty farm equipment for sale, like the John S680 combine harvester, it's important to make right choice. So, let's see if this combine harvester is the right piece of machinery for you.