Zipper
Angled spiked closing wheels
Cast Zipper
Cast Zipper Max
Double V Zipper
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.
About the Zipper
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.
The non-aggressive, 1″ angled spikes on the Zipper feather the soil in the furrow while simultaneously applying pressure to ensure the furrow is zipped shut.
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.
Benefits of the Zipper
Features—Design—Benefits
- Longer wear, heavy duty cast metal spikes
- Breaks down sidewall and zips seed V shut at the same time
- Tubular design of spike allows it to release soil and eliminate plugging while compacting the soil around the seed
- Angle design doesn’t flip or throw soil out; it allows for accurate release
- As the Zipper closes it creates indentations which allow moisture to sink in
- Feathers the soil in the seed V with its wide track design
- Designed to break up compaction without being too aggressive
- 1″ spike will not get too close to or disturb seed
- Allows for better seed-to-soil contact
Eliminates Common Problems
- Compacts the soil better than straight-fingered wheels
- Moves soil with minimal compaction into the furrow
- Eliminates air pockets
- On a hot windy day the trench will not break back open
Where They Work—Suitable for Many Soils
- Made to work in tough soils
- Works in no-till or conventional
Ease of Installation
- Easy to install
- Works well with or without the G2 liquid fertilizer disc
These photos were taken comparing two fields right across the road from each other at the same time.
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.
This study was performed in wet, less than ideal conditions by Beck’s Hybrids 2015 Practical Research.
“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
All-Cast Zipper
The NEW all-cast Zipper and Mohawk Closing Wheels won’t build up with mud due to not having plastic rims catching mud on each side.
We experimented with these in 2019 in very wet soils and farmers were impressed with how clean they stayed in wet sticky soils.
COVER CROPS
Many of the spiked wheels on the market wrap or plug in cover crops. The cast Zipper 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.
CAST WHEELS FOR DRILLS
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.
Please note that the Case IH 500 eccentric bolt kit has been updated since the video above was created. The new eccentric bolt works in the same manner.
Double V Zipper™
NEW for 2025
The Double V Zipper wheel is made for double disc opener drills and planters with a single press wheel. Cast wheel and arm assembly available for John Deere drills and air seeders.
How does it work?
- The double disc openers create a V in the soil where the seeds are laid.
- The Double V Zipper creates an inverse or upside-down V over the seed V.
- Seeds pass straight through the middle of the wheel while the wheel’s fingers destroy the side wall down in around the seed.
Double V Zipper Eliminates Common Problems
A common problem area is the rows behind tractor tires and drill wheels. These rows often have poor crop stands because the tires compact the rows and don’t leave enough soil to establish good seed to soil contact.
The Double V Zippers will totally destroy these hard packed rows, breaking up the compaction while mellowing the soil in over the seed, allowing for better seed to soil contact and healthier plant stands.
Why settle with a standard rubber press wheel when you can
boost the performance of your drill with the Double V Zipper?
The Double V Zipper:
- Destroys the entire side walls
- Does not go too deep in the soil
- Closes the seed V with an upside down V
- Will not bury itself; goes to whatever depth you plant
- Leaves seeds placed in the bottom; will not disturb seeds
- Does not hair pin or push straw and residue down in with the seed
- Works on all double disc opener drills and planters with a single press wheel
The Double V Zipper will destroy the side walls of the seed V, leaving crumbly mellow soil over the seeds, enhancing seed to soil contact.
Standard rubber OEM tires will leave the side walls compacted, making it harder for roots to penetrate the soil and establish a stable stand.
Wheel scraper available for the Double V Zipper
Closing Wheel & Arm Assembly for John Deere Drills
- NEW John Deere 1890-1990 closing wheel arm
- NEW Double V Zipper closing wheel
- Replaces OEM angled cast closing wheel and arm
- Eliminates 9″ or 10″ press wheel in center
- Helps eliminate wear on pins and bushings on row units
- Chicken Tracker™ gauge wheel reduces mud build-up
and lasts longer than OEM rubber tires - Replace John Deere seed tab with the Rebounder® Seed Cover
- Rebounder with Straight Shot™ for fertilizer eliminates having to use metal fertilizer tubes
Why not break both sides of the seed V in rather than only one side with the JD OEM cast closing wheel?
- Pulls in soil with less down pressure on row unit
- Runs over top of seed V rather than to one side of seed furrow
- Lets press wheel run straight up and down over top of seed furrow
- Pivot pins and bushings last longer due to less side pressure from OEM angled cast closing wheels
- Rebounder with concave design puts all seeds in bottom of seed furrow, eliminating having to use the OEM press wheel
- Rebounder now without press wheel can put fertilizer with the seed, eliminating mud build-up on the back of the drill
- Double V Zipper breaks in both side walls of the seed V, eliminating side wall compaction
- Double V Zipper roto-tills the soil into the seed V, eliminating air pockets or an open seed V in no-till plantings
- Double V Zipper helps eliminate hair pinning of residue in the furrow
- Double V Zipper mellows the soil in the seed V to enhance plant growth and create a more even emergence
Mounting Instructions for Double V Zipper wheel & scraper on a John Deere drill
SINGLE TO DUAL WHEEL CONVERSION KITS
We have conversion kits that transform your single press wheel to dual closing wheels. Works great with our Mohawk and Zipper wheels.
Kits fit Case IH and White 5000-6000 series planters.
Zipper Distinct Features over the Mohawk
- More aggressive
- Breaks up sidewall compaction better
- Rototills soil in for better compaction
- Pulls more soil from the sidewall in over the seed because the spikes are angled out and down
- Creates an ice cream cone shape with the soil in and above the seed V (the Mohawk creates a flat ice cream cone shape)
- Less mud build-up
- Rocks or root balls will not stick
Zippers
Mohawks
