Flatbed Lowbed Semi Trailer for Multi-Purpose Cargo Transport
3 Axle Flatbed Semi Trailer – Efficient General Cargo & Steel Coil Solution
The ROADKING 3 Axle Flatbed Trailer is engineered as a high-performance solution for the reliable transportation of general, medium, and heavy cargo. Featuring a reinforced Q345 Flatbed Semi Trailer chassis, this model is specifically optimized as a heavy-duty flatbed for steel coils, building materials, pallets, and industrial goods.
Whether you are looking to buy a flatbed trailer from a China factory for regional distribution or require an extendable flatbed trailer for long loads, our design focuses on structural integrity and cost-effectiveness for high-frequency transport scenarios.
Structural Design & Performance
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Premium Material Strength: Built with a high-tensile Q345 flatbed trailer for steel coils framework, ensuring the chassis resists deformation even under concentrated heavy loads.
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Heavy-Duty Stability: Equipped with a flatbed trailer with large diameter balance beam pins, enhancing the suspension's durability and ensuring smoother tracking on uneven road surfaces.
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Optimized Loading: The flat, non-slip checkered deck enables quick multi-directional loading via forklifts or cranes, significantly improving operational efficiency at logistics hubs.
Key Features
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Versatile Cargo Capacity: Expertly designed flatbed for steel coils, pallets, and oversized machinery.
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Flexible Configurations: Available as a standard platform or an extendable flatbed trailer for long loads (such as pipes, rails, or wind turbine components).
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Factory-Direct Reliability: A rugged china semi trailer structure built for long-distance, high-load cycles.
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Efficient Operation: Supports 12 sets of twist locks for seamless container intermodal transport.
Flatbed Lowbed Semi Trailer Parameters
| Brand | ROADKING |
| Item | 40FT Flatbed Semi Trailer |
| Size | 12400mm*2500mm*1570mm(Optional) |
| Axles | 2/3/4 Axles |
| Container / Cargo Loading | 140ft / 220ft Container / Cargo Loading |
| Load Capacity | 30 - 80 Tons |
| Type | Gooseneck Type / Tandem Type |
| Main Beam Material | Q345/T700 |
| Upper Plate Thickness | 16mm |
| Middle Plate Thickness | 10mm |
| Lower Plate Thickness | 18mm |
| Height | 500mm |
| Platform Thickness | 3mm |
| Tire | 12R22.5 (8/12 Pieces) Linglong / Triangle / DoubleCoin / Bridgestone / Other Brand |
| Rim | 9.00*22.5 (8/12 Pieces) Steel / Aluminum |
| Leaf Spring | 90mm * 13mm * 10 pieces, 90mm * 16mm * 10 pieces |
| Kingpin | #50(2") / #90(3.5"), JOST / Other Brand |
| Landing Gear | 28 Ton Two Speed, JOST / Other Brand |
| Twist Lock | 12 Sets |
| Vehicle Painting | Electrophoresis Painting |
Typical Applications & Customization
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Specialized Transport: High-strength reinforced flooring for steel coil distribution.
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Infrastructure Projects: Delivery of long-span construction materials using our extendable flatbed trailer design.
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Logistics Expansion: Scalable fleet solutions for regional and transcontinental hauling.
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Custom Options: Adjust deck size, axle counts (2–4 axles), or add optional side rails and stake posts.
Quality Control & Manufacturing
When you choose to China flatbed semi trailer manufacturer, you benefit from rigorous quality assurance:
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Frame strength and load-bearing stress tests.
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Welding inspection and deck flatness validation.
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Brake and suspension system operational checks before delivery.
After-Sales Support & Quotation
We are committed to providing the best value in the industry. Contact us today for a comprehensive flatbed trailer quotation that includes detailed material breakdowns and shipping schedules.
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Transport Consultation: Expert advice on the best configuration for your local regulations.
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Spare Parts: Reliable supply of wear-parts and maintenance guidance.
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Technical Assistance: Long-term support to keep your fleet moving.







