A rotavator, also known as a rotary tiller, is an agricultural machine used for soil preparation. It features rotating blades or tines that break up and aerate the soil, making it ready for planting. Powered by a tractor's PTO or its own engine, a rotavator efficiently mixes soil, incorporates nutrients, and controls weeds. It's widely used in farming, gardening, and landscaping due to its ability to save time and labor while improving soil health.