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The Boca U Shape End Dump Semi Trailer is engineered for efficient transportation of sand, gravel, coal, ore, aggregates, and other bulk materials. As a heavy-duty dump semi trailer, it combines a reinforced U-shaped body with an advanced hydraulic tipping system to provide faster unloading, improved stability, and reduced material residue.
Compared with conventional trailers, this end dump semi trailer offers a lower center of gravity and smoother material discharge. The rear dump semi trailer design makes it ideal for mining, quarrying, road construction, and infrastructure projects that require reliable high-volume bulk material transportation.
The optimized U-shaped body allows bulk materials to flow out smoothly while minimizing residue after unloading.
Manufactured with high-strength steel for maximum durability and long service life.
The hydraulic lifting system provides smooth and efficient unloading under demanding working conditions.
The optimized chassis improves stability during rear tipping operations.
Available with different body capacities, axle configurations, suspension systems, and hydraulic cylinder brands.
Technical Specification
Bucket capacity | 30/35/40 cubic meters |
Axles | 3 Axles*13/16Ton,FUWA/BPW or Customization |
Lifting system | HYVA brand,FE/FC type cylinders,Diameter=191 mm |
Dump semi trailer size | 10000x2500x3800mm |
Dump Box | T700 / Q345B double plate |
Material | Q345B,Beam Height:500mm,Upper Plate:14mm ,Bottom Plate:16mm,Middle:8mm |
Braking System | Air Dual braking system,with relay valve |
Suspension | Heavy duty mechanical suspension / Air bag / Bogies |
Landing gear | 28 Tons Two Speed |

The curved body reduces material buildup and improves unloading efficiency.
Provides greater stability during transportation and tipping.
Rounded corners help prevent materials from sticking inside the trailer body.
High-strength steel construction improves wear resistance in mining and construction environments.
| Feature | U Shape | Square Body |
|---|---|---|
| Material Flow | Excellent | Good |
| Material Residue | Low | Higher |
| Center of Gravity | Lower | Higher |
| Stability | Better | Standard |
| Best Applications | Coal, Ore, Gravel | Mixed Cargo |
Q1: What is a U shape end dump semi trailer?
A: A U shape end dump semi trailer is a specialized dump semi trailer with a curved cargo body and a hydraulic lifting system. The U-shaped design allows bulk materials such as sand, gravel, coal, and ore to flow out more smoothly, reducing material residue and improving unloading efficiency.
Q2: Why choose a U shape end dump semi trailer instead of a square-body dump trailer?
A: A U shape end dump semi trailer offers several advantages over a conventional square-body dump semi trailer, including smoother material flow, reduced material sticking, a lower center of gravity, and improved unloading efficiency. These benefits make it ideal for transporting aggregates, mining materials, and construction bulk cargo.
Q3: Is this trailer a rear dump semi trailer?
A: Yes. This trailer is also a rear dump semi trailer, meaning it unloads materials by lifting the front of the trailer with a hydraulic cylinder so that the cargo is discharged through the rear. The terms end dump semi trailer and rear dump semi trailer are often used interchangeably in the industry.
Q4: What materials can this hydraulic dump semi trailer transport?
A: This hydraulic dump semi trailer is designed to transport a wide range of bulk materials, including sand, gravel, crushed stone, coal, ore, soil, aggregates, demolition waste, and other loose cargo for mining, quarrying, and construction projects.
Q5: What hydraulic system does the U shape end dump semi trailer use?
A: This U shape end dump semi trailer is equipped with a reliable HYVA hydraulic lifting system that provides smooth, stable, and efficient unloading. The hydraulic cylinder delivers high lifting capacity while maintaining excellent operational safety under heavy-duty working conditions.
Q6: Can the U shape dump semi trailer be customized?
A: Yes. Boca Auto can customize the U shape dump semi trailer with different body capacities, axle configurations, suspension types, hydraulic cylinder brands, steel grades, and tire options to meet specific transportation requirements and local road regulations.
