Auxiliary Air Springs for Trucks – Solutions for Front and Rear Axles



Auxiliary air springs (Semi-Air-Springs) for the front axle are used on trucks, expedition vehicles, overland motorhomes, construction  vehicles, municipal vehicles, and emergency service vehicles when the front axle is subjected to higher loads due to body conversions, additional equipment, or continuous heavy-duty operation.

Depending on the vehicle model, auxiliary air spring systems are available with manual air pressure adjustment or automatic leveling control. They improve driving stability, reduce vehicle sway, and help maintain vehicle ride height even under heavy loads.

Typical Applications

Overland Motorhomes and Expedition Vehicles

Many overland motorhomes and expedition vehicles are based on truck chassis. Living units, water tanks, spare wheels, motorcycles, and extensive travel equipment often place significant additional loads on the front axle.

Construction and Building Vehicles

  • Tipper trucks
  • Flatbed trucks
  • Crane trucks
  • Concrete pump trucks
  • Construction service vehicles

Auxiliary air springs help improve handling characteristics even when load conditions change frequently.

Winter Service and Municipal Vehicles

Snow plows, sweepers, and municipal front-mounted equipment place continuous stress on the front axle.

Typical vehicles include:

  • MAN TGM
  • Mercedes-Benz Atego
  • Iveco Eurocargo
  • Fuso Canter

Fire and Emergency Vehicles

Fire trucks, rescue vehicles, and disaster response vehicles often carry extensive equipment that increases the load on the front axle.

Workshop and Service Vehicles

  • Mobile workshops
  • Utility service vehicles
  • Telecommunications vehicles
  • Road maintenance vehicles
  • Recovery and roadside assistance vehicles

Benefits of Front Axle Auxiliary Air Springs

  • Support for the original suspension
  • Improved driving stability
  • Reduced body roll and pitching
  • Significantly less vehicle sway
  • Increased driving comfort
  • Adaptation to varying load conditions
  • Vehicle ride height remains largely unchanged even under heavy loads
  • Improved handling with heavy bodies and mounted equipment
  • Greater safety and control in changing operating conditions
  • Optional automatic leveling control on selected vehicles

Air Supply and Control Options

Auxiliary air spring systems can be supplied with compressed air in different ways depending on the vehicle.

Vehicles with an Existing Air System

Many trucks can use the vehicle’s existing compressed air system. This ensures a constant supply of compressed air for the auxiliary air spring system.

Vehicles without an Air System

If the truck, expedition vehicle, or special-purpose vehicle does not have its own compressed air system, specially designed auxiliary compressors are available. These provide a reliable air supply at all times and allow convenient pressure adjustment directly from the vehicle.

Control Options

Depending on the system, various control methods are available:

  • In-cab control panel
  • Wireless remote control
  • Automatic leveling control

With automatic leveling systems, vehicle ride height is automatically adjusted regardless of load and maintained at the selected level as closely as possible.

Available Truck Models

Depending on the vehicle model, year of manufacture, chassis, and axle configuration, auxiliary air spring systems may be available for the front axle, rear axle, or both axles.

DAF

  • CF 75
  • CF 85
  • CF Euro 6
  • LF 45
  • LF 55
  • LF Euro 6

Ford Trucks

  • F-Max

Fuso

  • Canter 3C
  • Canter 3S
  • Canter 6S
  • Canter 7C
  • Canter 9C

Isuzu

  • N-Series
  • NKR
  • NLR
  • NPR
  • NQR

Iveco

  • Eurocargo
  • Eurocargo Tector
  • Eurocargo Tector Restyling
  • Eurocargo Tector 4x4
  • EuroTech
  • Stralis
  • Stralis Hi-Way
  • Trakker

MAN

  • TGA
  • TGL
  • TGM
  • TGS

Mercedes-Benz

  • Actros
  • Atego
  • Axor

Nissan

  • Atleon
  • Cabstar
  • NT400
  • NT500

Renault Trucks

  • D-Series
  • Magnum
  • Maxity
  • Midlum
  • Premium

Scania

  • 122
  • P-Series
  • R-Series

Volvo Trucks

  • FH 12
  • FH 13
  • FH 16
  • FH 440
  • FL
  • FM 12

Front Axle, Rear Axle, or Both?

Depending on the vehicle model and suspension configuration, auxiliary air spring systems may be available for the front axle, rear axle, or both axles.

Availability depends on factors such as:

  • Vehicle model
  • Model year
  • Chassis type
  • Axle configuration
  • Suspension type
  • Intended application

For many vehicles, solutions are available for both axles, allowing the suspension system to be tailored precisely to operational requirements.

Automatic Leveling Control

For selected vehicles, systems with automatic leveling control are available. These systems maintain a constant vehicle ride height regardless of load and are particularly suitable for:

  • Overland motorhomes
  • Expedition vehicles
  • Fire trucks
  • Municipal vehicles
  • Special-purpose vehicles with varying loads

What Information Is Required?

To identify the correct system, we require:

  • Vehicle model
  • Model year
  • Vehicle Identification Number (VIN)
  • Photo of the front axle
  • Intended vehicle use

This allows us to determine whether auxiliary air springs are available for the front axle, rear axle, or both axles and which solution is best suited to the intended application.

Is Your Vehicle Not Listed?

Auxiliary air spring systems are available for many additional trucks, municipal vehicles, fire and emergency vehicles, expedition vehicles, and special-purpose vehicles.

Send us your vehicle model, model year, and VIN, and we will be happy to check the available options for your vehicle.