Why do aluminum flatbed trailers have that bow in the middle. Do they come new like that? Or is it the weight of the load that eventually bows the trailer over time?
Aluminum Flatbed Trailers
Discussion in 'Ask An Owner Operator' started by camaro68, Jul 14, 2012.
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All trailers are like that, if its flat while empty or lightly loaded, retire it from service before it bottoms out!
camaro68 Thanks this. -
The bow is an ARCH and there because alumnium will flex with weight and when it is loaded it will flatten out like a wood deck trailer. The ARCH usually stays in the trailer for quite a few years, but will eventually go away and you have to get the beams re-arched again.
EMPTY
LOADED
camaro68 Thanks this. -
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camaro68 Thanks this.
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Get two bulldozers and push either end
camaro68 Thanks this. -
Thank you for the pics, shc, that's a good example. What year Western Star is that? What brand aluminum trailer do you prefer?
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I like the revolution for multiple loads and different kinds of freight. But if I was only going to haul steel/pipe I would buy a MAC 80Tcamaro68 Thanks this. -
SHC is mostly right and has good pics. The technical term for the arch is camber and all trailers have it put in them for strength otherwise they would sag with negative camber when they where loaded and eventually break.
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