Designed for single drive tractors or rigid units, the HA4 uses four air springs to deliver both an exceptionally soft ride and excellent
handling.
Features and Benefits
Very low frequency (1.25 Hz) operation protects load, vehicle, and driver from road shocks
Suspension is completely non-reactive: wheel hop is eliminated, braking performance is improved, tyre life is increased; suspension is ideal for high-torque engines
Axle is secured by an "A" frame that controls fore, aft, and sideways movement, while permitting full vertical and roll axle travel
Lightweight, high-strength tubular anti-roll bar is mounted in rubber bushings
Specifications
GCW
44,000 kg
60,000 kg
Drive axle loads
11,500 kg
13,000 kg
Ride height
200 mm
200 mm
Frequency
1.25 Hz
1.25 Hz
Vertical stiffness
66.25 kg/mm
72.7 kg/mm
Roll stiffness
680 kg m/deg
700 kg m/deg
Axle travel
+130/-80 mm
+130/-80 mm
Chassis width
790 mm - 880 mm
790 mm - 880 mm
Kit weight1
230 kg
230 kg
Suspension operating pressure
5.92 bar
5.92 bar
1Not including cross members, axle seats or pillar pin.
