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AIR SUSPENSIONS
 
 
 
 
 
 
 
 
 
 
Introduction  
 
Shock Absorber
  Heavy duty shock absorbers incorporating high damping characteristics helps eliminate wheel hop.

Fully contained within the suspension, mounted between the front hanger and the spring seat they are protected from road damage. This also allows for a more compact design giving a shorter stroke which reduces heat and increases service life. For most applications the shock absorber can also act as a check strap.
 
Pivot Bush
  The exceptionally tough, metal encased Pivot Bush chosen for its very compact design, virtually eliminates rubber extrusion thus greatly extending its effective working life. The bonding of the bush material to the outer case and inner sleeve ensures the bush works in shear and cannot rotate. This compact design also permits front bracket reinforcing to be closer to the point of side load and reduces unwanted side movements.
Spring
  The shape of the spring contains the suspension geometry. Tecair I has a standard rating of 12 tonne which is specially designed for arduous applications.
Air Spring
  Using quality large diameter, low pressure air springs allow a reduction of the required air pressure at typical axle loads. A 4 bar system fed from a 6 bar air reservoir more readily maintains the correct ride height and trailer stability. With the air spring including an internal bump stop, a long service life is expected.
Axle Seat
  The design philosophy of the axle seat for Tecair I is allowing for ease of fitment of the shocker during servicing.
Axle
  The axle, which serves as a torsion beam, is manufactured from 127mm diameter seamless manganese alloy steel, its high strength and resistance to bending characteristics are a critical part of the design of Tecair air suspensions.
- 16mm wall thickness suitable for highway operations.
- 19mm wall thickness suitable for off-road operations.
 
 
 
Tecair 1  
 
Air Suspension (Without Axle Lift)
 
 
Air Suspension (With Axle Lift)
 
 
Ride Height (mm) Axle Lift Model Number
200 With TA1/11/200L
Without TA1/11/200NL
400 With TA1/11/400L
Without TA1/11/400NL
 
Technical Specification
 
Capacity 12 Ton Per Module
Standard Ride Height 200mm and 400 mm
Standard Spring Center 960mm @ 1,850mm Axle Track Length
Standard Airbag Center 800mm @ 1,850mm Axle Track Length
Tare Weights 200mm Ride Height Model - 210kg
400mm Ride Height Model  - 228kg
Integrated Side Lift - 58kg
 
Notes:
1) Tecair 1 Air Suspension - 5" Round Axle Beam
   (16mm standard wall thickness, 19mm optional wall thickness).
2) Standard Spring center and air bag center are for axles with 1,850mm track length
   and tyre size 10.00R20 or 11.00R22.5. Other axle track length or bigger tyre size
   will affect spring center and air bag center.
 
 
 
Tecair FB (Fabricated Beam)  
 
Overslung
 
 
Underslung
 
 
Center Lift
 
 
Suspension Configuration Ride Height (mm) Model Number
Underslung 190 630042
235 630043
280 630044
Overslung 360 630045
405 630046
450 630047
 
Side Lift
 
 
Suspension Configuration Model Number
Center Lift 610101
Side Lift Overslung 610263
Side Lift Underslung 610264
 
Technical Specification
 
Capacity 9 Ton Per Module
Standard Ride Height 190mm and 360 mm
Standard Mounting Center 980mm @ 1,850mm Axle Track Length
Standard Airbag Center 880mm @ 1,850mm Axle Track Length
Tare Weight (Without Lift) 129kg
 
Notes:
1) Tecair FB Air Suspension - 5" Round Axle Beam (16mm standard wall thickness).
2) Standard Spring center and air bag center are for axles with 1,850mm track length
   and tyre size 10.00R20 or 11.00R22.5. Other axle track length or bigger tyre size
   will affect spring center and air bag center.
3) All Axles fitted are with long camshaft.
 
 
 
Duratrac HD  
 
 
 
Technical Specification
 
Capacity 13.6 Ton Per Module
Standard Ride Height 240mm and 460mm.
Other ride height available upon request
Axle Seat Suits 127mm diameter round beam and 150mm square beam axles
Tare Weight (without lift) 115kg to 118kg dependent on ride height
Options Axle Lift, Pneumatic Kits, Dump Kit, Raise/Lower/Hold, Pressure Retention Kit, Axle Load Indicator Kit
 
Notes:
1) Duratrac HD AIr Suspension - 5" Round Axle Beam or 6" Square Beam.
2) Standard Spring center and air bag center are for axles with 1,850mm track length
   and tyre size 10.00R20 or 11.00R22.5. Other axle track length or bigger tyre size
   will affect spring center and air bag center.
3) All Axles fitted are with long camshaft.
 
 
 
   
 
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