The Penta Dump Boxes sit on identical mounting knuckles - two on each corner on the DB70, DB50 and DB40; one on each corner for the DB30. Pins are inserted in the rear knuckles to keep the box fixed while lifting. By providing eight identical knuckles, the pins can be switched to reverse lifting, again increasing your ability to fill the box while travelling behind a harvester.

Removable extensions come standard, and are simple to remove if less height is required. As well, a graphite-coated inside and a hydraulic tailgate increase the efficiency of unloading, saving time and hassle.



The front of the box is designed to be operator friendly Exceptional visibility is achieved with a viewing window covered with plexiglass, making it effortless for the operator to view inside while loading. A foldaway front ladder is also featured for when a closer look is required. A hydraulic front gate tilts forward for the initial pass through the field, for ease of loading while following a forage harvester.

All models are built with a wide tub, allowing for easy filling with any harvester. The tub also features rounded corners and tapers out towards the bottom and rear, allowing for product to easily slide out when it’s time to unload.



Superior flotation and ease of transport are strong features of the dump trailer product line. All models feature 800/45R26.5 tires - providing flotation in challenging field conditions, and minimizing the horsepower required to pull each unit.

The DB50, DB60, and DB70 models also feature front and rear steering axles. The steering system is a follow steering system, and is operated through hydraulic lock and unlock. For road transport, the steering system can be hydraulically locked out to improve stability.

Hydraulic brakes come standard on all models, with air brakes available as an option.



Reliable and safe equipment is increasingly important during harvest seasons. The entire Penta dump trailer lineup features a robust frame and heavy-duty suspension, as well as a unique cylinder system designed to keep the frame and trailer stable during unload. Two stabilization cylinders are found mounted on each of the rear axles – this feature is found on the 3 rear axles of the DB70, the 2 rear axles of the DB50 and DB60, and the rear axle of the tandem axle DB40 and DB30.

As soon as the operator begins to lift the main hoist cylinder, oil is first diverted to these stabilization cylinders. The cylinders extend fully and prevent the trailer from leaning one way or the other. The cylinders keep hydraulic pressure and remain stable until the trailer is completely lowered.

Also featured are hose burst valves – in the case of a hydraulic line blowing on the system, the valves will instantly shut off and prevent the cylinders from losing pressure.



Penta Dump Boxes now feature an optional Digi-Star WeighLog system, originally developed for the loader market. This system has been modified and calibrated to work with all Penta dump trailers, and can be retrofitted to existing units.

The WeighLog provides a user-friendly, onboard weighing method that can be used in all dump trailer applications. The system records and stores each load as it is weighed, meaning that the operator knows the weight of every load coming out of the field. Additionally, you can separate loads by farm and field, and transfer the data to a computer or tablet.

By removing guesswork and reducing travel time to offsite scales, the WeighLog system provides an efficient and precise method of documenting yields and feed volumes.


  • Features


    Steering Axles No Steer Axle
    Extension Height 32"
    Front Tilt Extension Hydraulic
    Tailgate Hydraulic
    Grain Door Manual/Optional Hydraulic

    Standard - BKT FL630 800/45R26.5

    Optional - Michelin 800/45R26.5


    Total Length 411"
    Total Height (with Tires & 32" Extentions) 153"
    Outside Width (with Tires) 131"
    Interior Dimensions (L x W x H) 25.9' x 9.0' x 4.6'
    Unit Weight 24,300 lbs
    Tandem Axle Weight Capacity 40,000 lbs / 18,140 kg
    Tandem Walking Beam Capacity 60,000 lbs / 27,200 kg
    Volume (with Extensions) 1850 cu ft / 52 m3
    Silage Capacity 23 tons
    Hoist Oil Volume 12.68 US Gal / 48 Litres
    Minimum Tractor H.P. 190