HYDRO-PNEUMATIC SUSPENSION
Current large haul trucks have a limited suspension travel resulting in extreme forces on the main frame. ETF developed a special hydro-pneumatic suspension system which compensates the vehicle weight between individual axle-lines. The extreme long suspension travel of 950 mm protects the main frame from road and shock impacts. The system has the standard feature of automatic stabilizing during tipping. Over-rolling during tipping is practically impossible. Another feature of the suspension is a better stability at negotiating curves resulting in higher permissible speeds and thus shorter trip times. The wheels always stay in contact with the road surface for optimal traction.
Oscillating axles
ETF axle construction enables both axles of one axle line to oscillate 10 degrees left and right preventing stress on the frame and the 100% overloading of the tyres as experienced with conventional two axle trucks.
Extreme long suspension travel
600 mm suspension travel out Normal driving height 350 mm suspension travel in
Total suspension travel 950 mm
