Foshan Ultraton Engineering Machinery Co., Ltd.
Foshan Ultraton Engineering Machinery Co., Ltd.
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Ultraton Semi Trailer Chassis Parts are lightweight and rigid, and the leaf springs will not shift laterally during use. The wear resistance block of the balance arm has a grease lubricating nozzle, which reduces the sliding friction between the steel plate and the wear resistance block of the balance arm.

Our Trailer Chassis Parts' torque rod angle is reasonably designed, which effectively reduces tire friction and prolongs the service life of the tire during frequent bumps in the entire vehicle.

Trailer Chassis Parts

Trailer Chassis Parts for Sale

How Does Truck Trailer Parts Work?


The basic 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. Truck Trailer Parts are important for semi-trailers 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.


  1. Co-bearing with the Semi Trailer;

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

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

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

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

  6. 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 to choosing each Trailer chassis part.


With our rich experience and distinct advantage on the resource, we are authorized to use and distribute the full range of Genuine FUWA series spare parts. Besides, as strong support to Ultraton series Semi Trailer, we design and supervise the 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.