The drop pan is a real eye opener with 2 combines running in the field, we use to check for loss the “old fashion way” by kicking at the ground behind the combine. We run 2 combine and it was amazing to see that the case 7230 was set very well and had minimal loss but once we dropped the pan behind the case 8250 with automation we where shocked to see how high the losses where. The SmartPan was able to help us put a number to the losses with ease as well as set the automation on are combine to accurately monitor what the losses are as the conditions changed. We dropped losses by 2/3, picked up .7mph ground speed, and reduced engine load by 23%.

Shawn Helmuth – Moorefield ON, CanadaFarmer using the Bushel Plus SmartPan System to manage harvest losses

I don’t know how much you guys saved me, but these were the cleanest samples and the losses seemed to go down without overloading sieves. I’ll surely recommend these to anyone I talk to.

Jeremiah Rhynes – Sidney, Montana USAFarmer operating MAD Concaves in John Deere S790 combines

“I was really impressed with the cleanliness
of the sample, and the limited grain loss
exceeded my expectations. Overall, I’m
extremely satisfied with the performance.”

Ryan Doctor – North Platte, Nebraska USAFarmer and Titan Machinery Parts Manager operating MAD Concaves (O-Grates) in soybeans in a Case IH 7120 combine

“I first saw it at a farm show and the frames that go in where
you can take the inserts in and out was the first thing that
caught my attention. We’re showing less loss out the back of
the combine which is what we were looking for.”

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Terry Dabbs – Arkansas, USAFarmer operating MAD Concaves (O-Grates) in corn in a John Deere S780 combine

“We think they’re great. We were trying round bars, and
then we went to MAD Concaves. We had a lot less cobs in
the grain tank and looks like losses were great in the field,
so we like them.”

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Matt Mork – Dawson, Minnesota USAFarmer operating O-Grate MAD Concaves in corn with a Case IH 8240 combine

We raise wheat, canola, flax, soybeans and sunflowers. The factory concaves on my New Holland combines were large and heavy which meant for me to change them, I had to find one or two other people to help, and the process took over an hour for each machine. With the Bushel Plus MAD Concaves, I can have both machines changed over in about 30 minutes with no extra help needed. Not only does this save time and a backache, but I can also get the combine set properly in changing conditions instead of just say it’s good enough with the old concaves. We’ve also seen a cleaner sample and picked up speed in the field over the factory concaves making these a no-brainer to run.

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Amanda KoppMAD Concaves operator - North Dakota, USA

We demo’d a set of O-Grates in an X9 this fall in both soybeans and corn. We found it noticeably easier to get a high-quality sample than with competitive concaves and picked up ground speed while achieving near zero yield loss. Amazing! We now have MAD Concaves in all our machines. 

Travis HughesO-Grate MAD Concave operator - South Dakota, USA

Really clean sample. Was able to run our John Deere S780 combine to full engine load with 45-foot head in beans. Not common.

Heath FeiokO-Grate MAD Concave operator - Platte, South Dakota


We love them! They are a lot lighter and easier to deal with than the stock concaves, they’re amazing.

Brent FastTurtle Lake, ND

Love em, absolutely love em, people ask about them and I’d do it again in a heart beat.

Jeff EllweinHazen, ND