Rotary Cutters
Rotary cutters, often called brush hogs, are heavy-duty mowers for pasture clipping, roadside growth, weeds, and brush. They are common on US small farms, livestock properties, and homesteads that need to maintain rough ground rather than fine turf.
What it does
A rotary cutter uses one or more heavy blades to knock down tall grass, weeds, and light woody growth. It is used to reclaim overgrown areas, maintain field edges, clip pastures, and reduce brush before it gets out of hand. Compared with finish mowers, it is built for rough conditions and coarser material. It is a basic pasture-maintenance tool on many farms.
How to choose one
Choose a cutter based on tractor PTO horsepower, machine weight, cutting width, and the thickness of material you expect to mow. Confirm hitch category, PTO speed, driveline protection, and whether your tractor has enough front weight and stability for safe transport. Wider is not always better if your ground is rough or power is limited. Used cutters can be worthwhile if the deck, gearbox, tailwheel, stump jumper, and blade carrier are sound.
Cost, upkeep & safety
Costs depend on width, duty rating, and features such as chain guards and driveline protection. Maintenance includes gearbox oil, blade condition, stump-jumper inspection, tailwheel upkeep, and driveline lubrication. Safety is essential because thrown objects can travel far, so keep people away, use shielding, and follow the operator manual and dealer guidance.
Tips
Walk unfamiliar areas first and remove wire, rocks, and hidden debris. Start with a higher cutting height in rough or unknown growth. If you mow near roads, buildings, or animals, pay extra attention to guards and discharge direction.
General educational buying guidance, not an endorsement of any brand or a substitute for the operator manual. Confirm specs, pricing, and safety with a local dealer. Page updated Aug 4, 2026.