Fifth wheel coupling
The fifth wheel coupling is under the load of the front-end of semi-trailer, connected with king pin by the locking mechanism. Passing the traction and braking force, it can automatically link the tractor unit with the semi-trailer.
This product can be made of different kinds of materials, such as steel, copper, plastic, carbon steel, bronze, iron and so on.
| Imposed load(T) | 40T | 60T |
| D-value(KN) | 240 | 260 |
| Weight(kg) | 280 | 290 |
| Height(mm) | 290 | 290 |
| Portrait Tilt Angle | 15° | 15° |
| Later Tilt Angle | 7° | 7° |
| Color | Black | Black |
| King Pin Size | 50mm(2 inches) | 90mm(3.5 inches) |
Flatbed semi trailer, Low-bed semi trailer, Skeleton semi trailer, Container semi trailer, Stake semi trailer, Fuel tank semi trailer, Tipper trailer, Full trailer, Gooseneck semi trailer, LPG semi trailer, LNG semi trailer, Water tank trailer, Utility trailer and so on.
1. Traction locking mechanism of the operating handles should be set at the right side of the fifth wheel coupling, and the operating force should be less than 250 N. Locking mechanism should be set in the reliable safety device.
2. The matched length of connecting part of the fifth wheel and the wheel mounting plate must be less than 50mm. And it’s necessary to weld the stop boards in the fore and-aft direction of the fifth wheel.