This 20′ High Wall Dump Trailer from Diamond C is a triple-axle, single-tire trailer with a 24,000 lb GVWR. Built from 7-Gauge steel, this thing is a tank and is great for hauling extremely heavy material and equipment. We used it to transport our John Deere 333G Skidsteer which weighs in the ballpark of 12,000 lb.
This trailer uses a Scissor Lift hydraulic system to dump. The dump capacity is unknown (even Diamond C couldn’t give us a number) and it is variable, meaning the dump capacity depends on where the load is positioned in the trailer. But you can determine its limit through empirical use. As a reference, filling the trailer half full of soil puts it over its dump limit.
A wired remote is used to raise and lower the hydraulic jacks—for parking and for hooking up to your truck. A simple lever switches hydraulic flow to the main lift cylinder, and you can raise your trailer to dump. The trailer can be lowered hydraulically or by gravity using the remote. The remote has a handy magnet on the back that sticks to the trailer to keep it out of the way when not in use.
We’ll include a solar charger which we use as a trickle charger to keep up the battery life so things work when you need them to.
The rear doors can swing outward horizontally and be held in place by chains, or you can keep them connected together and treat them like a top-pivot gate, letting gravity swing the doors open when dumping.
Two heavy-duty stowaway ramps are included. There are two additional (manual) jack stands beneath the rear doors to brace your trailer if you’re driving in and out of it.
You’ll see in the photos that the trailer is in excellent condition. There is a spare tire included as well.