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The basic trailer parts components of a common Semi-Trailer include a chassis frame, a cargo platform, and Trailer Chassis Parts such as suspensions, axles, wheels, and traction devices and support devices. Trailer Chassis Part is important for a semi-trailer to ensure each type of semi-trailer performs perfectly on this own function. The semi-trailer relies on the cargo bed (cargo container, cargo compartment, tank body, undercarriage, etc.) to carry the cargo. The front end is supported by the fifth wheel (kingpin) and connected to the Semi-Trailer tractor. The rear end is supported by the suspension, the axle and the wheel on the road surface.

The salient features of the semi-trailer are:
Co-bearing with the Semi Trailer;

Coupling device for transmitting horizontal or vertical force to the Semi Trailer, and traction with the tractor’s towing

The front part has a support device( landing gear) that suspends when the Semi Trailer is running smoothly when parking;

It has no power, and can be driven by the Semi Trailer tractor;

It generally has 1 axle, 2 axles, 3 axles and multi-axles and other forms;

Its own walking and lighting system corresponds to the tractor. So if without Trailer Chassis Part, a whole Semi Trailer cannot work itself only with a steel structural chassis frame. On this point, Ultraton attaches much importance on choosing each Trailer chassis part.

With our rich experience and distinct advantage on resource, we trailer manufacturers are authorized to use and distribute full range of Genuine FUWA series spare parts. Besides, as a strong support to Ultraton series Semi Trailer, we design and supervise manufacture of Ultraton Series King Pin, Fifth Wheel, Landing Gear, Suspension and axle. Leaf Spring, Tire, Wheel Rim and wear parts including lamp, brake lining, brake drum, nylon bushing and more are also available as an important part of our considerate service.