12.5m Flatbed Semi Trailer Detailed Description
The 12.5m Tri Axle Flatbed Semi Trailer is engineered as a multi-purpose transport platform rather than a fixed container-only solution. As a result, its overall length and deck layout are optimized to balance maneuverability and load distribution, making it suitable for both standardized containers and irregular bulk cargo.
Furthermore, the main frame is manufactured from high-strength Q345 steel with a reinforced beam structure, allowing the trailer to withstand continuous heavy-duty operation. We apply a tri-axle layout with mechanical suspension to improve road adaptability and reduce stress concentration during long-distance transport. This configuration ensures stable performance under varying load conditions, particularly on uneven or mixed road surfaces.
Equipped with an adjustable twist lock system, the trailer can switch between container transport and a flat cargo platform as needed. In addition, optional components such as tool boxes, spare wheel brackets, traction pins, and ABS braking systems allow operators to adapt the trailer to different logistics environments and regional regulations.
Product Video
Key Features
Optimized Platform Length: The 12.5m deck balances container compatibility and road maneuverability.
Reinforced Q345 Steel Frame: Provides long-term structural stability and durability under repeated loading.
Tri-Axle Configuration: Ensures even load distribution and reduces axle stress during transport.
Adjustable Twist Lock System: Enables efficient transition between container and bulk cargo.
Mechanical Suspension Setup: Enhances durability and performance on mixed road conditions.
Safety-Oriented Design: Supports dual-line braking systems and optional ABS for secure operation.
Application Flexibility: Ideal for port logistics, industrial materials, and long-distance freight.

Specifications
| Specification | Details |
|---|---|
| Trailer Model | Tri Axle Flatbed Semi Trailer |
| Function | Container & Bulk Cargo Transport |
| Overall Dimension (mm) | 12500 × 2500 × 1550 |
| Tare Weight (KG) | 7500 |
| Loading Capacity (KG) | 40000–60000 |
| Axle Brand | FUWA 13 TON (other brands optional) |
| Axle Number | 3 (2/3/4 axle optional) |
| Suspension System | Mechanical, 10/10/10 leaf spring |
| Main Beam Material | Q345 Steel, 500mm height (12/14/8mm plates) |
| Platform Plate | 3mm Diamond Plate |
| Container Twist Locks | 12 pcs |
| Tire Type & Quantity | 12R22.5, tubeless, 12 units |
| Traction Pin | 2” or 3.5” bolt-in type |
| Spare Wheel Bracket | 2 pieces |
| Tool Box | 1 Standard |
| Landing Gear | 28T Heavy Duty, JOST Brand |
| Brake System | Dual Line with ABS (WABCO optional) |
Application Scenarios
Container shipping and port logistics
Bulk cargo transport (steel, timber, machinery)
Industrial and construction equipment hauling
Long-distance and international freight
ZW Group Manufacturing Base
ZW Group’s manufacturing base in Shandong, China, focuses on producing structural flatbed and heavy-duty transport trailers. For 12.5m flatbed models, our team prioritizes beam straightness, welding consistency, and dimensional accuracy to maintain stable deck performance under repeated loading.
In addition, the reinforced Q345 steel main beams undergo controlled cutting, welding, and surface treatment, providing long-term corrosion resistance. Our technicians assemble each trailer with careful attention to axle alignment, suspension performance, and braking system integration, ensuring reliable operation in port environments and long-distance transport.
Before shipment, our team inspects every trailer to confirm structural integrity, functional performance, and compliance with international transport standards.
Shipping Scenarios
ZW Group prepares the 12.5m Tri Axle Flatbed Semi Trailer for export based on its dimensions, weight, and destination requirements. Our logistics team inspects and secures the trailer to protect structural components, suspension systems, and deck surfaces during transit.
Depending on the route and destination, we select the most suitable transport solution, including flat rack containers, bulk transport, or Ro-Ro vessels, to ensure safe and efficient delivery. By following this approach, we provide dependable logistics support for customers handling containers, bulk cargo, industrial machinery, and oversized equipment worldwide.

❓FAQ
Q1: Load capacity?
A1: The standard load capacity is 40–60 tons, and we can customize configurations to support higher capacities.
Q2: Container compatibility?
A2: The trailer accommodates 20ft, 40ft, 53ft, and extended container formats, and it also supports bulk cargo.
Q3: Axles & suspension?
A3: We equip the trailer with tri-axle FUWA units as standard, combined with multi-leaf mechanical suspension for stable performance.
Q4: Are twist locks adjustable?
A4: Yes, operators can raise them for container transport or lower them to handle bulk cargo efficiently.
Q5:Customization options?
A5: We offer custom platform length, axle brand, suspension type, braking system, and accessories based on client requirements.
Q6: Tires available?
A6: Standard 12R22.5 tubeless tires are included, with alternatives available on request.
Q7: Suitable for long-distance transport?
A7: Yes, the reinforced frame, stable axle layout, and durable suspension support continuous long-distance operation.
Q8:Key safety features?
A8:Heavy-duty landing gear, dual-line ABS brakes, side guards, secure twist locks, and optional tool boxes ensure safe operation.
Why Choose ZW Group?
Over 10 years of international experience manufacturing and exporting semi-trailers to 50+ countries worldwide.
Modern factory covering 50,000m², staffed by a skilled team of over 200 professionals and supporting personnel.
Strict quality control to ensure durable and high-performance trailers you can rely on.
Dedicated after-sales service with quick response to support your operations smoothly.





