| Dimensions(LxWxH) | 9500*2550*3100 mm The height of the beam is 420mm,upper plate is 12mm*140,down plate is 12*140mm,middle plate is 6mm |
| Body length | 9.5M |
| Body width | 2.55M |
| Body height | 3.1M |
| Design load | 40T |
| Vehicle weight | 6.9 tons |
| Number of axle | 3 |
| Leaf spring | Leaf spring 10pcs*90*13mm |
| Number of wheels | 12 |
| ABS system | YES |
| Turntable | Diameter is 1100mm |
| Traction hook | DN50 |
| The material of Main beam | Q345 |
| Platform plate | 3mm Diamond Plate |
| Braking system | WABCO RE6 relay valve ;T30/30 spring brake chamber;40L air tanks |
| Lights | LED 8 side lights and 2 rear lights 2 width lamp |
| Painting | Complete chassis sand blasting to clean rust ,1coat of anticorrosive prime,2coats of final paint wax spray |
| Accessories | One standard tool box,one spare tire carrier,one crank,one shaft headwrench,four side light,two rear light |
| Water tank | The size can be choose freely. |


Usually equipped with a high-torque engine (mainly diesel engine) to ensure traction capacity at low speed and high load. Some heavy-duty trailers use multi-axle drive or all-wheel drive to enhance escape and climbing performance.
The frame is made of high-strength steel or reinforced design to resist torsional stress during towing. Equipped with heavy-duty suspension system (such as leaf spring or air suspension) to adapt to different loads.
Integrated ABS, ESP (electronic stability program) and anti-rollover system, especially suitable for long-distance towing. Lights and warning signs comply with regulations to ensure visibility at night or in bad weather.
Towing faulty vehicles, accident vehicles or illegally parked vehicles using hydraulic platforms or booms.
Semi-trailer tractors are used for long-distance transportation of containers and bulk cargo to improve logistics efficiency.
Widely used in engineering for towing construction machinery, in aviation for aircraft tractors, and in military applications for transporting equipment.