Standard, rubber closing wheels have a tendency to press the soil closed causing a smooth effect, especially when the soil is wet. On a hot, dry windy day, the furrow will crack back open exposing the seed. The Zipper Closing Wheel will eliminate this problem.
The Zipper is a 13″ angled spiked closing wheel designed to take the place of standard, rubber closing wheels. It works in all soil types, and is the go-to wheel for the toughest of no-till conditions.
As the spikes close they create indentations which allow moisture to sink in, increasing seed-to-soil contact.
Zipper closing wheels are angled so that when they engage the soil at the 5, 6, and 7 o’clock positions, they are breaking the side wall down over the seed plus compacting the soil around the seed. Then, when they exit the soil at the 8 o’clock position, they are angled such that they release the soil, leaving it compacted around the seed. Because of this, you will not need to drag a chain behind them.
Other closing wheels on the market are aggressive and have the potential of actually flipping seeds out of the furrow. You will not have that problem with the Zipper.
The planter planting corn into corn stubble had regular press wheels. The planter planting corn into wheat stubble had Zipper closing wheels. The ground was muddy when these plants were planted, the soil heavy and wet.
The weather turned hot and windy after planting, and you can see where the seed V closed with the regular press wheels has cracked back open. Here, the corn plants are leaning, and unable to throw out good root systems.
“Wheels that crumbled the seed trench shut from the sides generally outperformed wheels that applied more pressure above the seed. In the wet conditions we were planting into, this action helped decrease compaction above the seedling and allowed for more even and uninterrupted emergence.” – Beck’s
We experimented with these in 2019 in very wet soils and farmers were impressed with how clean they stayed in wet sticky soils.
Many of the spiked wheels on the market wrap or plug in cover crops. The cast Mohawk is less likely to plug or wrap in heavy cover crops.
If they do start to wrap, one can order Hub Covers (shown here) as an option to prevent wrapping of cereal rye, vetch and other vining crops
We have even had farmers switch the Zippers around (shown below), running the right on the left side of the planter and the left wheel on the right with the fingers turned inward, to eliminate wrapping of cover crops.
Schaffert Mfg.’s all-cast wheels are an excellent option for John Deere and Case IH drills.
Included in the cast wheel kit for these drills is an eccentric bolt that changes the pitch in on the back side of the closing wheel. This allows the wheel to bring soil in into the furrow behind the wheel, compacting it down around the seed.
Many of the spiked wheels on the market wrap or plug. We have had farmers switch the Zipper Spyders around, running the right on the left side of the planter and the left wheel on the right with the fingers turned inward and interlocking, to eliminate plugging.
MOHAWK AFTER 9000 ACRES
The following photos show a used Mohawk closing wheel next to a brand new Mohawk ring. The wheel has been run 9000 acres and is still in good working condition. Wheel courtesy of John Yeutter, Eustis, NE.