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15.03.2016

Product Portrait

Air springs for trucks, trailers and buses

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Guaranteed quality has made the brand DT Spare Parts the leading brand in the international Independent Aftermarket for commercial vehicles. The complete range includes all required spare parts for trucks, trailers and buses, including all standard air springs.

The DT brand products, made of high quality materials, meet your highest quality requirements and guarantee a long period of use.

The complete range of the brand DT Spare Parts covers more than 380 different air spring for around 1900 references.

Air springs are flexible dampers between chassis and body. This kind of spring is used for trucks, buses, trailers and transporters. By the use of air suspension, a higher level of driving comfort and a constant drive level is achieved.

 

DT-Technic Info

The special feature of air springs is their enormous flexibility. The internal pressure of the spring can be varied. The spring nevertheless remains stable. Despite different payloads, the ground clearance of the vehicle can be kept constant. When used for passenger transport, the vehicle floor can be lowered to facilitate entering.

An internal, multi-layer woven structure ensures the stability and flexibility of the air spring.

Under the brand DT Spare Parts, rolling lobe air springs, as well as ready-mounted air springs are available.

Depending on the air spring type and usage, a rubber bumper is located inside an air spring, which serves as an end stop and prevents the air springs from “breaking through”.

Depending on the type of vehicle, rolling pistons made of steel, aluminium or plastic are used.

One distinguishes between air springs of the following types:
1. Air spring: The upper and lower metal parts are located on the chassis and do not have to be replaced.
2. Air springs, incl. connecting and fixing parts: easy to install
3. Folding bellows: A relatively larger spring deflection is possible, even at low spring height
4. Air springs specifically for the seating area

 Construction of air springs

  1. Air inlet
  2. Plate
  3. Bumper
  4. Rubber air spring body
  5. Girdle hoop
  6. Mounting stud
  7. Piston

Air springs are often subjected to extreme situations, such as the failure of the level control. There is a danger that the air spring becomes detached from the piston(s), so that the function is no longer possible. The safety of the vehicle is severely restricted.

5. With air springs of the brand DT Spare Parts this problem can no longer occur, thanks to an optimized construction. This results in increased vehicle safety and reduced downtime. Quality controls for air springs include, amongst other things, leak checks, material testing, dimensional inspection and testing of the connection between piston and case, as well as volume changes at defined pressure stages.

 

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