Heavy hauling machines carry large loads to various destinations. They typically consist of a heavy tractor unit with a multi-axled trailer. In fact, heavy haulers are split into axle categories—specifically, 5, 6, 7, 8, 10, 13, and 19. The higher the axle, the more loads the truck can transport. It’s important to know the different types of heavy-haul trailers so that you know which ones to use for your next project.
Due to their versatility, flatbed trailers are some of the most common types of trailers used today. You can store loads on several surfaces, such as the open, flat tip, sides, and rear. These trailers have a maximum freight weight of 48,000 lbs. and measure anywhere from 48 to 53 feet in length. Although spread axle trailers are designed the same as flatbed trailers, their single axles are spread more widely apart.
A lowboy trailer has two drops in the height deck: one after the gooseneck and another right before the wheels. This allows the deck to hang lower to the ground than other trailers. Unlike other trailers, lowboys can carry loads up to 12 feet tall and handle large equipment, such as bulldozers or industrial equipment. A 2-axle lowboy trailer can transport up to approximately 40,000 pounds.
These commonly-used trailers are a type of flatbed trailer with two levels: a bottom and a top deck. Step-decks fit heavy equipment, such as a bulldozer or crane, that wouldn’t fit a standard flatbed trailer. These trailers have built-in ramps for easy loading versatility, and they can hold a maximum weight of 48,000 pounds.
Stretch Single Drop and Double Drop Deck Trailers
These trailers are specifically designed to haul long loads that a traditional flatbed or step-deck cannot handle. Both can handle about 45,000 pounds and can stretch to a length between 30 to 65 feet.
Removable Gooseneck Trailers (RGNs)
RGNs are optimal for carrying tall and long freight. The front is detachable, and the bottom can lower to create a ramp. RGNs can carry 42,000 pounds, but stretch RGNs may handle more weight.
It’s all in the name — dual-lane trailers are specialty heavy haul transport platforms that accommodate our highest payloads. NessCampbell offers customized dual-lane capability for these use cases.
NessCampbell Crane + Rigging has the right heavy hauler to support your needs. Call our Portland, Oregon office today at (503) 283-3111 to discuss your project goals.