clump of sand on the ground. To prevent this occurrence, and keep the system cleared at all times, some machines will automatically power up the spinners before the feed system starts, and then shut the spinners off a few seconds after the material flow stops. Next, a few spinner enhancements have been developed to help accommodate personal preferences. These include tiltable spinners, which help control how material is propelled into the turf canopy. Also, some designs incorporate spinners with adjustable paddles for further fine-tuning the spread pattern.


Even the gate plays an important part in the feeding process. It helps regulate material flow and, in some topdressers, it can be electronically actuated from the seat of the towing vehicle. The positive locking feature on these electronic units is especially handy for quickly closing and opening the gate when moving from one green to the next. This prevents material from bouncing out during transport. Regardless of the feed system used, any topdresser can be inhibited by material that lumps together - especially wet sand. This occurrence prevents a consistent flow of material to the spinner, reducing the accuracy for which greenkeepers strive.


However, many


units now contain vibrators to eliminate the problem by breaking up such material. Finally, to manage all of these components, controllers have started to become more sophisticated. Like the topdressers themselves, controllers come with varying abilities - from basic to more advanced. The simplest machines may require the operator to make adjustments on the machine itself, which becomes difficult for pinpointing the desired settings. But, by using the latest technology, the operator can mount electronic controls in the towing vehicle and manage each of the components independently from the cab. The industry is beginning to trend toward the technology of independent controls, which allows a topdresser to spread accurately and helps to prevent material waste.


“If a golf ball can leave a mark after landing on a green, imagine what a half- ton topdresser could do!”


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