When harvest hits full stride, concaves are the last thing most farmers want to think about, until something goes wrong. Plugging, rotor rumble, cracked grain, and poor separation are often blamed on the crop or the combine, when in reality, the real culprit is sitting right under the rotor. Here are the most common concave-related mistakes growers make (and how the Razors Edge system eliminates them).
Mistake #1: Running Worn-Out Concaves
Many farmers push concaves far past their useful life. With modern high-yielding crops, worn bars mean poor threshing and higher losses. Because wear is gradual, farmers often don’t realize how much grain is slipping out the back.
How Razors Edge Solves It:
Built with hardened steel and a unique variable-spacing design, Razors Edge Concaves maintain their bite longer. The notched bar layout forces grain-on-grain threshing, delivering a cleaner sample and serious reduction in grain loss, even in tough crop conditions.
Mistake #2: Swapping Out Concaves Mid-Season
Farmers often change between small wire, round bar, and opening and closing cover plates depending on the crop. That means downtime, frustration, and more time turning wrenches than harvesting acres.
How Razors Edge Solves It:
Razors Edge is an all-in-one concave system. Wheat, barley, canola, soybeans, corn, you run it all without swapping concaves or installing cover plates. That means less hassle and more hours harvesting when the crop is ready.
Mistake #3: Incorrect Settings Causing Overloading
A common issue is running concaves too tight, creating bottlenecks, rotor stalls, and broken grain. On the other hand, concaves set too wide lead to unthreshed pods and kernels left in the field.
How Razors Edge Solves It:
Traditional concaves are one-size-fits-none. Razors Edge uses variable spacing, tightening where the rotor impacts crop most and opening wider toward the back. The result: smooth, even material flow, less rumble, and maximum separation, without overloading the system.
Mistake #4: Ignoring Grain Damage
Hard threshing to clean up the sample often leads to cracked kernels that cost real dollars at delivery.
How Razors Edge Solves It:
The notched bar design increases grain-on-grain threshing instead of metal-to-grain impact. That means a cleaner sample, less damage, and better grades.
Why Farmers Are Switching
- Works across John Deere, Case IH, Fendt IDEAL, and New Holland
- Field-tested in North America, Brazil and Australia
- Reduces grain loss and improves sample quality
- Eliminates mid-season concave changes
Your concaves might be one of the smallest parts of your combine, but they have one of the biggest impacts on yield and efficiency. The Razors Edge system was built to fix the most common harvesting headaches, saving time, cutting losses, and pushing more clean grain into the tank.Stop losing bushels out the back. Upgrade once, and harvest everything your field produces. For more information on Razors Edge Concaves, give us a call at (855) 612‑7006.