The Germinator Closing wheel is an innovative and modern closing wheel that has replaced the traditional and outdated rubber wheels. The Germinator closing wheel is useful in promoting the successful and consistent germination as well as the emergence of the seed. It is made out of premium-grade steel which is helpful in reducing the risk of sidewall compaction. Utilize down-pressure as you have in the past. You may be able to lighten it slightly (monitor results if making changes). It is suitable in all types of soil and tillage conditions including heavy soil with no-till conditions.

Recently a Midwest company conducting high-quality practical agricultural research reported that using a superior performing closing wheels such as Germinator® closing wheels was the most cost-effective solution with the quickest most immediate rate of return, for enhancing corn or soybean production and profitability. Their research showed, closing wheels such as Germinator® could increase corn production as much as 5.1 bushels per acre and soybean production 2.5 bushels per acre.

Over the last two years multiple on-farm tests have been conducted comparing the Germinator® closing wheel with its patent pendinginner-rim-shoulder-firmerto competitors such as Furrow Cruiser and Twister. In every challenge, Germinator® showed the best success at closing the furrow, providing high quality seed-to-soil contact, even emergence; closing down the competition.  Germinator® creates a vein of firm soil encasing the seed in perfect soil contact and enhancing the soil’s ability to wick moisture to nourish and germinate the seed.



Setup options:

  • Full wheel assembly easily replaces factory closing wheels on most planters
  • Ring-only insert option installs on most factory wheels

Compatible with:

  • John Deere MaxEmerge™ Plus, XP, and XP Pro
  • Kinze ’93–current
  • AGCO White and Massey Ferguson
  • Great Plains
  • Monosem
  • Precision Planting Ready Row Unit

What makes the Germinator unique is its inner-rim shoulder-firmer, which encases the seed with soil, maximizing seed-to-soil contact. It’s not just any closing wheel. Reach your yield potential!

How It Works


Crumbles And Firms Soil At The Same Time


Works In Diverse Field Conditions


Smooth Surface And Rounded Center


Cost-Effective And Easy To Install

Closing Wheel Graphic_web
  • GERMINATOR closing wheels maximize seed to soil contact by: 
    • Eliminating sidewall compaction
    • Giving depth control
    • Eliminating air pockets
    • Fully closing the seed trench with inner rim shoulder firming
  • Promotes consistent germination and emergence.
  • Steel construction is highly effective in all tillage and soil conditions. Utilize down-pressure as you have in the past. You may be able to lighten it slightly (monitor results).
  • Designed to clean rapidly in wet conditions.
  • 050 steel insures longevity.
  • Farm Journal magazine projects a break even with only 170 acres.

Uniform Emergence

The wheels of the Germinator closing wheel are engineered in such a way that they are highly effective in all tillage and soil conditions.

The closing wheel for planters is suitable for planting soy, corn, sun flowers, sugar beats, dry beans , and  other “row” crops. Due to the innovative and unique design, the Germinator closing wheel prevents air pockets and covers the seed ‘V’ properly in order to create better seed-to-soil contact.


Setup options of Germinator closing wheels

The closing wheels for planters can be used with almost all types of planters. Since the Germinator closing wheels are one of the best planter closing wheels, the traditional closing wheels can be replaced with these modern germinator closing wheels.

Apart from this, when you are using a planter closing wheel there is no need to use the rubber ring insert options that are used in the outdated factory issued closing wheels.


Seed to Soil Contact!

Seed to soil contact
Seed to soil contact
Corn planted with Germinator (Texas, 2020)
Corn planted with Germinator (Texas, 2020)

Shop Germinator Products Now

Germinator N6


Now Available

Unlike the typical poly-wheels that may wear out after only one season, our closing wheels are made with Nylon 6. Nicknamed “plastic steel” Nylon 6 is ultra-durable at a lower price-point. Nylon 6 is also the same material Michigan Transmission uses to manufacture transmission gears.

Germinator Cap


Khanki, 100% cotton twill, unstructured, low-profile cap. Self-fabric slide closure with brass buckle and grommet. Embroidered Germinator logo on front.