SAF CBX Series fixed-frame, air-suspension axle systems from SAF-Holland are designed for heavy-duty low-boy and drop-deck applications, including on-highway, off-highway and off-road.
The trailing arm suspensions use a fully cast steel beam between the front axle and the front hanger for optimal strength and weight.
“We put the metal where we need it and take it out where we don’t,” says Bill Hicks, director of product planning and market development axles and suspension – trailer systems for SAF-Holland. “Even if you’re empty, you’re pulling something lighter. That’ll help with your fuel economy and carbon emissions.”
Available through major trailer manufacturers, the model CBX23 can carry up to 23,000 pounds per axle; the CBX25 can carry up to 25,000 pounds; and the CBX25/30 can carry up to 30,000 pounds per axle at creep speed (5 mph or less). Ride heights for the CBX23 range from 14 to 17 inches, while ride heights for the CBX25 range from 14 to 19 inches.
“They’re available in a multitude of configurations, from axle spacing to axle types, even with disc brakes,” Hicks says. “We have our own proprietary air disc brake, the SAF INTEGRAL, for mountainous regions or applications where you really need a high-performance disc brake.”
The disc brake has a bimetallic rotor for heat dissipation and is engineered to accept industry standard, single wide-based wheels with up to 2-inch offsets and dual-wheel configurations.
The standard drum brake has a SAF X-Series 5.75-inch diameter with 16 1/2- by 7-inch extended life linings and industry standard tapered spindles. Parallel spindles are available.
Other features include a multifunctional pivot bushing that limits twisting to prolong bushing life and the Swing Align axle alignment system that requires no replacement parts or disassembly. Axle alignment is achieved by direct adjustment of the lead screw, requiring less than 250 ft-lbs of torque.
“It’s built right into the frame hanger,” Hicks says of the one-person alignment system. “All you have to do is dial it in. Turning the bolt moves it forward or back. There’s no need to cut anything off or reweld or replace components.”
All suspension systems feature Black Armour metal protection. Unlike primer, paint or powder coating, the protectant chemically bonds with metal to form a protective skin that is impervious to water and anti-icing chemicals.
Options include the PosiLift Axle Lift System that enables operators to increase payload with the flip of a switch. The liftable axles also extend tire life, improve operational versatility and fuel efficiency, as well as enhance trailer maneuverability. 231/777-8501; www.safholland.com.
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