Views: 0 Author: Site Editor Publish Time: 2026-07-07 Origin: Site
Discover complete Flatbed Semi Trailer specifications, including standard dimensions, load capacity, axle configurations, materials, and technical features. Learn how to choose the right heavy-duty flatbed semi trailer for logistics, construction, and oversized cargo transportation.
A Flatbed Semi Trailer is one of the most widely used transportation solutions in global logistics. Due to its open platform design, it provides excellent flexibility for transporting containers, steel products, construction machinery, oversized equipment, and other heavy cargo.
Understanding flatbed semi trailer specifications, especially dimensions and load capacity, is essential for buyers who want to choose a safe, durable, and cost-effective trailer.
As a professional trailer manufacturer, Hunan Chengxin Special Vehicle Co., Ltd provides customized flatbed semi trailers designed for different transportation requirements worldwide.
A flatbed semi trailer is a trailer without side walls or a closed body structure. The cargo platform allows easy loading and unloading from the side, rear, or top.
Common applications include:
Container transportation
Steel coil and steel pipe transport
Heavy machinery transportation
Construction equipment delivery
Large cargo logistics
Industrial material transportation
Compared with enclosed trailers, flatbed semi trailers offer greater loading flexibility and higher cargo compatibility.
The dimensions of a flatbed semi trailer depend on regional regulations, cargo requirements, and customer specifications.
| Item | Standard Range |
|---|---|
| Overall Length | 12,000 mm – 18,000 mm |
| Platform Width | 2,500 mm – 3,000 mm |
| Platform Height | 1,300 mm – 1,600 mm |
| Wheelbase | 7,000 mm – 13,000 mm |
| Deck Thickness | 3 mm – 6 mm (customizable) |
| Container Compatibility | 20ft / 40ft / 45ft containers |
Load capacity is one of the most important specifications when purchasing a flatbed semi trailer.
The capacity depends mainly on:
Number of axles
Axle brand and rating
Frame strength
Suspension system
Cargo distribution
| Trailer Type | Axle Configuration | Load Capacity | Recommended Application |
|---|---|---|---|
| Light Duty Flatbed | 2 Axles | 30–40 Tons | General cargo |
| Standard Flatbed | 3 Axles | 40–60 Tons | Logistics transportation |
| Heavy Duty Flatbed | 4 Axles | 60–80 Tons | Machinery and construction equipment |
| Customized Flatbed | Multi Axle | 80–100+ Tons | Oversized cargo |
A high-quality flatbed semi trailer consists of several important parts:
The main beam is the core load-bearing structure.
Common materials:
Q345 high-strength steel
Carbon steel
Reinforced steel structure
High-strength steel improves:
Loading performance
Fatigue resistance
Service life
The axle configuration determines the trailer's carrying ability.
Common axle options:
| Axle Type | Capacity |
|---|---|
| 13 Ton Axle | Medium-duty transportation |
| 16 Ton Axle | Heavy cargo transportation |
| Customized Axle | Special heavy loads |
Two common suspension types:
| Suspension Type | Advantages |
|---|---|
| Mechanical Suspension | Durable, economical, suitable for rough roads |
| Air Suspension | Better stability, reduced cargo vibration |
The material directly affects trailer strength and lifespan.
| Component | Material |
|---|---|
| Main Beam | Q345 High Strength Steel |
| Side Beam | Reinforced Steel |
| Floor Plate | Checkered Plate / Steel Plate |
| Axle | Heavy Duty Trailer Axle |
| Landing Gear | JOST / Equivalent Brand |
Choosing the correct trailer size depends on your cargo type.
Recommended:
20ft container → 12.5m flatbed trailer
40ft container → 13m flatbed trailer
Multiple containers → 16m–18m trailer
Recommended:
Reinforced main beam
More axles
Higher suspension capacity
Hunan Chengxin Special Vehicle Co., Ltd specializes in manufacturing reliable transportation equipment for international markets.
✅ Professional semi trailer production experience
✅ Customized dimensions and load capacity
✅ High-strength steel construction
✅ Strict quality inspection process
✅ Competitive factory-direct pricing
✅ Export experience for Africa, Middle East, Southeast Asia and other regions
Before purchasing, consider:
Choose axle numbers according to maximum cargo weight.
Confirm trailer length and width requirements.
For poor road conditions, select stronger suspension and frame structures.
Check maximum allowed dimensions and axle loads.
Choose a trailer that can support different cargo types.
| Specification | Buyer Should Confirm |
|---|---|
| Trailer Length | ✔ |
| Trailer Width | ✔ |
| Axle Number | ✔ |
| Load Capacity | ✔ |
| Suspension Type | ✔ |
| Tire Size | ✔ |
| Brake System | ✔ |
| Steel Material | ✔ |
| Custom Requirements | ✔ |
A reliable Flatbed Semi Trailer requires the right balance between dimensions, load capacity, structural strength, and operating conditions.
For logistics companies, construction businesses, and international transport operators, selecting a professional manufacturer ensures better performance, lower maintenance costs, and longer service life.
Hunan Chengxin Special Vehicle Co., Ltd provides customized flatbed semi trailer solutions with competitive factory pricing and global delivery support.
