Grooming mowers and rotary cutters are both grass cutters that are attached to the back of a tractor and dragged along, according to Woods Equipment. The grooming mower is designed more for a clean grass cut that does not scatter grass clippings all over the property. The rotary cutter, on the other hand, is designed more for durability and versatility in difficult areas, such as areas with hard objects and mowing nearby a lake. These mowers are generally designed for professional use rather than for use by homeowners.
Rotary cutters are designed to cut through heavy vegetation like very thick brush, according to Bush Hog. Grooming mowers are more designed for cutting grass only.
Both cutters are capable of handling very uneven terrain, according to Bush Hog. While rotary cutters are generally better for cutting in situations that are not ideal, the floating lower clevises allow the grooming motor to handle some uneven terrain as well, according to Land Pride.
Both mowers are capable of handling wear and tear. They are reinforced so that they can withstand rocks and other objects that can be kicked up by the rotor, according to Bush Hog. However, grooming motors are not as durable as rotary cutters.
Some rotary cutters are designed specifically for eliminating trash. Some rotary cutters are designed specifically for mowing around water bodies such as near lakes, according to Bush Hog. Grooming mowers also have customizability, but not to the extent of the rotary cutters.
Some rotary cutters are designed for light grass cutting and can be attached to smaller tractors. Their smaller size and weight also makes them easier to move around, according to Bush Hog. The grooming motors also have versions that are specifically designed for small areas and for homeowners, rather than for professional landscapers.
Grooming mowers have three-point systems that toss the grass behind the mower instead of throwing the grass in places that the landscaper does not want them to go. The floating top link and lower clevises reduce the chance of scapling, according to Land Pride. The grooming mower is designed to not have a chain in the back where the grass is tossed so that the grass does not fall in areas where it is not wanted. Rotary cutters are generally not designed to control where the grass clippings go.
The grooming mower releases the maximum air flow to allow the most power possible when tossing the grass, according to Land Pride. Rotary cutters do not have this feature.