When Midwest farmers start shopping for a land roller, three names come up most often in dealer lots and coffee shop conversations: Degelman, Mandako, and Harms. Two of those are Canadian companies that have built large national distribution networks. One is a family-run American manufacturer in Bertha, Minnesota, that’s been doing it since 1929.
Here’s an honest look at how they compare.
The Key Specifications
| Spec | Harms | Degelman | Mandako |
| Origin | USA (Minnesota) | Canada (Saskatchewan) | Canada (Manitoba) |
| Max Width | 45 feet | 80+ feet | 85+ feet |
| Drum Diameter | 30 inches | 36 inches | 42 inches |
| Wall Thickness | 1/2 inch | 5/8 inch | 3/8–1/2 inch |
| Water Ballast | Yes | No (weight only) | No |
| Cab-Fold | Yes (from cab) | Varies by model | Yes |
| Made in USA | Yes | No | No |
| Price Range | Lower–Mid | Mid–High | Mid–High |
Where Harms Has the Advantage
Price and Value
Harms Land Rollers consistently come in at a lower price point than comparable Canadian models — a difference that can run $5,000–$15,000 depending on width. For a 30- to 45-foot roller covering a 1,000–4,000 acre operation, that price difference is real money. As one longtime Harms customer put it: “It’s considerably less money due to the simplicity and engineering.”
Water Ballast Flexibility
The ability to add water to the drums and increase rolling weight is a feature that neither Degelman nor Mandako offers on most models. This gives Harms owners flexibility to adjust downward pressure based on conditions — lighter early in the season when soils are soft, heavier later when the ground has firmed up. You pay for one roller and get adjustable performance.
American-Made, American-Sourced Parts
Canadian-made equipment has faced real parts supply challenges for some Midwest farmers, particularly when exchange rates shift or cross-border shipping delays occur. Harms is manufactured in Minnesota, with dealer support throughout the Upper Midwest. When something needs service, you’re calling a Minnesota dealer, not a Canadian distributor.
Right-Sized for Midwest Operations
The largest Harms model tops out at 45 feet. That’s not a limitation for the vast majority of Midwest row crop operations — it’s appropriate engineering for where the actual market is. Degelman and Mandako competing on 80- to 91-foot models are building for Prairie Canadian operations with quarter-section-scale fields. Most Minnesota, Iowa, and Wisconsin operations don’t need that width — and they shouldn’t pay for it.
Where the Canadian Brands Have the Advantage
Width Options
If you are farming 50,000+ acres in the Red River Valley or the Canadian Prairies, Harms’s 45-foot maximum width requires more passes than a 60- or 80-foot competitor. For very large-scale custom rolling operations, the Canadian brands offer sizes that Harms does not.
Drum Diameter
Degelman and Mandako offer larger drum diameters (36″ and 42″ respectively) compared to Harms’s 30″ drum. Larger drums can offer slightly different rock-embedment characteristics and are preferred by some custom rollers who are pushing very large rocks in heavy glacial soils. For the majority of rolling applications, the 30″ Harms drum performs excellently.
The Bottom Line
For a Midwest row crop or livestock operation rolling 500 to 10,000 acres per season — in Minnesota, North Dakota, South Dakota, Iowa, or Wisconsin — the Harms Land Roller delivers genuine, proven performance at a significantly lower price than the Canadian alternatives. If you’re running a massive custom rolling business requiring 60+ foot widths, you’ll need to look at larger options. For everyone else, Harms is worth a serious look before paying a Canadian premium.
“We traded in our smaller Harms Land Roller for a new 45′ model, and we’ve done about 5,000 acres with it. There’s no better land roller on the market.” — Roy Olsen, Parkers Prairie, MN
See It Before You Buy
Harms Land Rollers are available through dealers across the Upper Midwest. Find your nearest dealer at harmsmfg.com or call us at (218) 924-4522 to discuss models and pricing.
