Allie
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This Unverferth Pro-Force 1850 is fitted with single flotation tires, a roll tarp and ISOBUS scales. The Raven RCM controller provides rate control through a compatible ISOBUS display for fertilizer, lime, gypsum, cover crop seed and other compatible materials.
A belt-over-chain conveyor moves material from the stainless-steel hopper to the dual spinner discs. The spinner assembly has fore-and-aft adjustment to set the discharge for different materials.
| Specification | Details |
|---|---|
| Hopper capacity | 18 tons of fertilizer; 580 cu. ft. struck |
| Hopper construction | 10-gauge 304 stainless steel |
| Conveyor | 34-in. belt over chain |
| Spinners | Dual 30-in. discs |
| Rate controller | Raven RCM ISOBUS |
| Scales | ISOBUS scales included |
| Tires | IF900/65R32 R-3 singles |
| Tarp | Roll tarp included |
Tell us what you intend to spread and which tractor and display you use. We can review the hydraulic connections, hitch and loaded weight, and confirm the application settings for your material.
Browse our fertilizer spreaders and Pro-Force equipment.
Pay by card at checkout, or choose Reserve for $0. We’ll confirm the product, selected options, availability, taxes, and pickup or delivery. Reservations are held for 7 days.
After confirmation, you can arrange payment by check, ACH or wire transfer, or discuss financing. Financing may be available when at least $5,000 of qualifying equipment is financed, subject to credit and underwriting approval.
We ship parts and equipment nationwide by parcel or freight. Pickup is available at our Henderson, Iowa store. We’ll confirm timing and the fulfillment plan with you before your order is released.
Talk with our equipment and parts team before you order. We can help compare models, explain the listed configuration, or review a part number with you.
Our Henderson, Iowa team includes dedicated parts and warranty staff. If you need a replacement part or help with a manufacturer warranty question, contact us with the model and serial number of your equipment.
Call 712-566-1033 or use the specialist button above. Meet our support team.

Family owned in Henderson, Iowa
“Excellent service before and after the sale, very knowledgeable about the products they offer.”
Family-owned since 1980
The Keast family's farming roots in Southwest Iowa reach back to the 1870s, when Thomas Keast settled near Macedonia. Russ began selling equipment on the family farm in 1980, bringing firsthand experience and a practical understanding of how machinery needs to perform in the field. Today, Keast Enterprises serves customers across the country, with the same dedication to fair prices, dependable support, and quality products.
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Product details, availability, and features may change. Contact us if you need us to confirm any detail before ordering.