1 The sliding fifth wheel

The sliding fifth wheel can be according the axle load to distribute, it install on the guide rail.

On the guide rail, there have several lockpin, when the truck running, make the fifth wheel keep a ideal location. The sliding fifth wheel can use for different trailers which have the king pin.

When the truck moves forward, it can shorten the turning radius of the trailer.

2 Stationary fifth wheel

The stationary fifth wheel on the fixed location of the truck frame. it can’t slide back an forth, the stationary fifth wheel have a advantage, that’s lighter weight, it doesn’t allow weight distribution changes. The stationary fifth wheel is not suitable for installing kingpin too far back, cause the truck turn a corner maybe hit the tractor.