New composite materials show great promise in lightening trailer designs. But their use must be tempered by cost and maintenance concerns. Photo: East Manufacturing
">Commercial truck trailers are the kind of unsolvable puzzle engineers dream about. Regardless of what they are built to haul, all trailers conform to strict laws governing overall dimensions and weight that limit cargo-carrying capacity. But the lighter the trailer, the more payload that can be legally carried.
That pressure has always been there, says Craig Bennett, president and CEO of Utility Trailers. But with retailers such as Amazon and Walmart pushing for ever-greater efficiency, it is more intense than ever. And in Bennett's mind, it's a challenge that starts — and ends — with today's driver shortage. “There just aren't enough truck drivers to go around,” he explains. “And the ones that are out there don't want to spend weeks going coast to coast. They want to go home at night.”
The result, Bennett says, is a very real push from both shippers and fleets to maximize the amount of cargo hauled by every available driver. “But,” he adds, “fleet operations are changing at the same time. Fleets are running more regional routes today with more hub-and-spoke operations in order to get their drivers home regularly. That means more loading and unloading of trailers. Which means significantly increased duty cycles with more associated wear-and-tear on trailers — more docks getting bumped, and more forklifts pounding on trailer floors.”
The result, Bennett says, is an industry looking for lighter weight designs that can hold up to dramatically enhanced duty cycles and durability issues. “Designing trailers that can handle these opposing operations demands can be quite a challenge for us at times,” he says with a chuckle.
Staying under the magic number
Bill Wallace, platform product manager at East Trailers, says his