SUSPENSION SYSTEMS VOCATIONAL / HEAVY-HAUL
ULTIMAAX ® Advanced severe-duty rear rubber suspension system • Optimized design to balance robust durability and weight savings • Progressive load springs provide a unique balance of unloaded ride quality and loaded stability • Fabricated walking beam design equalizes axle loading while providing optimal clearance, axle travel and weight • Approved applications: dump, logging, mixer, refuse, crane / boom, platform, oil field and mining • Up to 17.5 in. of diagonal articulation • Capacities of 60,000 and 70,000 lbs. utilize torque rods or V-rods - See Figure 1 • Capacities up to 52,000 lbs. utilize torque rods – See Figure 2 HAULMAAX ® EX Heavy-duty rear rubber suspension system • Hundreds of pounds lighter than competitive suspension systems • Increased job site rating for expanded applications • Superior combination of empty ride and loaded stability • Improved durability through advanced elastomer technology • Reduced maintenance due to optimized geometry and lubrication-free components • Up to 17 in. of diagonal articulation for greater mobility • Increased clearance for wide-based tires • Approved applications include: dump, refuse, mixer, logging, crane / boom and defense • Capacities of 40,000, 46,000 and 52,000 lbs.
PRIMAAX ® EX Severe-duty vocational rear air suspension system • Engineered specifically for severe-duty operations for up to 100 percent off-highway use • Axle connection and torque rods help reduce torsional axle stress and driveline vibration • Large-volume, low-frequency air springs provide a smooth ride for on- and off-highway use • Up to 12.5 in. of diagonal wheel articulation for superior mobility • Recommended applications: oil field, heavy haul, logging, defense, mixer, crane mounted, dump, refuse and tractor • Capacities of 23,000 and 26,000 lbs. (single axle), 46,000 and 52,000 lbs. (tandem axle) and 69,000 and 78,000 lbs. (tridem axle)
Figure 1
Figure 2
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