The Doepker RockR Tridem is the purpose-built single-trailer side dump for operators who need maximum payload without running a Super B combination. At 32 feet it swings approximately 28.5 cubic yards of aggregate, gravel or contaminated soil against a 50,000 kg GVWR, and two retention pins removed let the operator discharge to either side without repositioning. A 4.8mm Hardox 450 tub is standard with 6mm available for the most abrasive material.