Allie
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The MAS 38-foot Chainfloor trailer hauls forage and silage with a hydraulically driven unloading floor. Its dual Parker motors move the chainfloor toward the rear gate, making it useful at unloading areas where raising a dump body is impractical.
The listed red-and-black trailer includes MAS air-ride suspension, steel inner rims and aluminum outer rims. Available gate, extension and control choices allow the trailer to be matched to the harvest operation. An electric tarp is optional.
| Specification | Details |
|---|---|
| Working Length | 38-foot trailer length |
| Floor Chain | WH-82 heavy-duty chain; 9/16″ pins |
| Suspension | 60,000 lb-rated air-ride; not a payload rating |
| Unloading Motors | Dual Parker hydraulic drives |
| Roller Chain | #100 heavy-duty |
| Chassis Options | Steel inner rims and aluminum outer rims included |
| Color | Red and black; other colors available |
| Customization Options | Barn doors, side extensions, high-lift gates, tarps, lighting, manual/flow control, custom plates |
| Tarp | Optional electric tarp |
We can match gate operation and unloading controls to the truck's hydraulic equipment and the receiving area. Check the complete trailer's weight limits and tires when planning a load; the suspension rating alone is not a payload rating. Applicable federal excise tax is included in the listed price.
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.