

The 3 Axles Extendable Flatbed Semi-Trailer is a versatile heavy-duty transportation solution designed for carrying long, oversized, and irregularly shaped cargo. Its extendable flatbed structure allows the trailer length to be adjusted according to different cargo dimensions, providing greater flexibility than a standard flatbed semi-trailer.
Built with a reinforced steel frame and a durable three-axle running gear, the trailer offers excellent load-bearing capacity, stability, and reliable performance during long-distance transportation. The extendable design makes it particularly suitable for transporting steel pipes, bridge components, wind turbine parts, construction materials, machinery, structural beams, and other extra-long loads.
The flat and open loading platform provides convenient access for cranes and forklifts, making loading and unloading more efficient. The trailer can also be customized with different platform lengths, axle configurations, suspension systems, and loading accessories to meet specific transportation requirements. With its combination of adjustable length, strong structure, high flexibility, and practical loading design, the 3 Axles Extendable Flatbed Semi-Trailer is an ideal choice for specialized heavy and oversized cargo transportation.
Designed for demanding cargo transportation.
3-axle, 4-axle and customized configurations.
Suitable for different road and transport conditions.
Dimensions and specifications can be adapted to customer requirements.
The 3 Axles Extendable Flatbed Semi-Trailer provides a practical transportation solution for long, oversized, and irregularly shaped cargo that cannot be accommodated by a standard flatbed trailer. Its extendable platform can be adjusted according to the length of the load, helping operators transport different types of cargo more efficiently.
It is particularly suitable for wind turbine components, steel structures, bridge sections, pipes, construction equipment, and other extra-long materials. By adjusting the trailer length to match the cargo, it helps improve load positioning, weight distribution, and transportation flexibility while reducing the need for specialized transport arrangements.
The trailer is widely used in construction, infrastructure projects, energy, manufacturing, and heavy logistics, where flexible handling of long cargo is essential for efficient delivery.

The extendable platform can be adjusted to accommodate different cargo lengths, providing greater flexibility for transporting long and oversized loads.

The reinforced sliding structure allows the trailer to extend smoothly while maintaining sufficient strength and stability during heavy-duty transportation.

A reliable locking system secures the extended platform in position, helping maintain a stable trailer structure when transporting long and heavy cargo.

The reinforced cargo deck provides a strong and stable loading surface for steel structures, construction equipment, machinery, and other oversized cargo.

The three-axle configuration helps distribute cargo weight effectively, providing stable handling and reliable support when transporting heavy loads.

Designed for oversized and extra-long cargo, the extendable configuration is suitable for transporting steel beams, pipes, wind turbine components, construction materials, and other long loads.
| Item | Specifications |
|---|---|
| Product Name | 3 Axles Extendable Flatbed Semi-Trailer |
| Axles | 3 Axles |
| Loading Capacity | 40–60 Tons |
| Standard Length | 13,000 mm |
| Extended Length | 18,000–25,000 mm |
| Overall Width | 2,500–3,000 mm |
| Platform Height | Approx. 1,300–1,500 mm |
| Platform Type | Extendable Flatbed |
| Main Beam | Heavy-Duty Reinforced I-Beam |
| Steel Material | Q345B / Q355B High-Strength Steel |
| Axle Brand | FUWA / BPW / Other Brands |
| Suspension | Mechanical Suspension / Air Suspension |
| Tire Size | 12R22.5 / 11R22.5 |
| Rim | 9.00–22.5 |
| Kingpin | 2" / 3.5" |
| Landing Gear | 28 Tons, Two-Speed |
| Brake System | Dual-Line Pneumatic Brake |
| ABS | Optional |
| Electrical System | 24V LED Lighting System |
| Extension System | Manual / Hydraulic Extension |
| Cargo Type | Steel Structures, Pipes, Machinery, Wind Turbine Components, Bridge Sections |
| Color | Customized |
| Customization | Available According to Customer Requirements |
| Item | Specifications |
|---|---|
| Product Name | 3 Axles Extendable Flatbed Semi-Trailer |
| Axles | 3 Axles |
| Loading Capacity | 40–60 Tons |
| Standard Length | 13,000 mm |
| Extended Length | 18,000–25,000 mm |
| Overall Width | 2,500–3,000 mm |
| Platform Height | Approx. 1,300–1,500 mm |
| Platform Type | Extendable Flatbed |
| Main Beam | Heavy-Duty Reinforced I-Beam |
| Steel Material | Q345B / Q355B High-Strength Steel |
| Axle Brand | FUWA / BPW / Other Brands |
| Suspension | Mechanical Suspension / Air Suspension |
| Tire Size | 12R22.5 / 11R22.5 |
| Rim | 9.00–22.5 |
| Kingpin | 2" / 3.5" |
| Landing Gear | 28 Tons, Two-Speed |
| Brake System | Dual-Line Pneumatic Brake |
| ABS | Optional |
| Electrical System | 24V LED Lighting System |
| Extension System | Manual / Hydraulic Extension |
| Cargo Type | Steel Structures, Pipes, Machinery, Wind Turbine Components, Bridge Sections |
| Color | Customized |
| Customization | Available According to Customer Requirements |
At Zhongrun, we value every customer relationship. Through factory visits and face-to-face communication, we better understand our customers’ needs and provide professional trailer solutions tailored to their transportation requirements. We look forward to building long-term partnerships with customers around the world.
Our product process follows strict quality control from raw material selection and component preparation to welding, assembly, painting, inspection, and final delivery, ensuring reliable quality and consistent performance for every semi-trailer.
