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The Penta DB50 is a tridem-axle dump trailer for hauling silage and other compatible bulk material. This configuration combines a large extended tub with two steerable axles and one fixed axle to help the trailer follow turns during fieldwork.
A graphite-coated tub and hydraulic tailgate help material leave the box during unloading. The hydraulic front extension tilts forward for loading behind a forage harvester, while a front viewing window and fold-out ladder provide access for checking the box.
| Specification | Details |
|---|---|
| Capacity (with extensions) | 1,850 cu ft; volume with extensions |
| Axle Configuration | Tridem - 2 steerable, 1 fixed |
| Tire Type | Standard BKT 800 Tires |
| Extension Height | 32″ |
| Tailgate & Grain Door | Hydraulic tailgate, grain door manual or optional hydraulic |
| Tub Finish | Interior graphite tub coating |
| Front Extension Tilt | Hydraulic |
| Operating Weight | 24,300 lb unit weight |
| Minimum Tractor HP | 190 HP |
| Axle Load Rating | 60,000 lb axle rating; not a payload rating |
| Brakes | Hydraulic |
Match the load to the trailer and tractor ratings as well as the available box space. Dense material may reach the allowable weight before filling the extensions, so we can review the crop, tractor and unloading area when quoting this tridem package.
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.