What Makes Aluminium Boat Trailers Durable and Sturdy?
Aluminium is a sturdy, lightweight metal. It’s the perfect alloy for those applications that require a degree of mobility. But we’re talking about boat trailers, not aerospace technology, about road vehicles, not space vehicles. Before dealing with any structural demands, then, it’s probably a good idea to source a durable aluminium alloy. Keep 5052 aluminium in mind when you’re looking for a sturdy boat trailer.
Start With A Solid Frame
A strong home, even if it’s built out of solid concrete and steel rebar, isn’t going to be around for long if the structure’s foundations are made from substandard materials. It’s the same with boat trailers, with frames that are laced with many cross-members and supports; if the alloy is weak, the boat trailer won’t last. The metal struts will bow, they’ll warp and corrode. From the outset, make sure the tinny cradle is manufactured from a magnesium and chromium heavy alloy, an aluminium frame that won’t submit when a heavy load pushes down hard. As mentioned in our opening paragraph, 5052 aluminium will create a substantial boat trailer backbone.
Fully Submersible Designs
Bolted metal struts are suitable for mid-range road carriers, but a fully welded uni-body is the best option here, with its fastener free outlines easily capable of enduring every vehicle jounce and jolt. Lowered into the water, the marine-grade alloy sinks into the water without kicking off a road-loosened part. Better yet, the alloy is corrosion-resistant, even when it meets saltwater. If there are exposed steel parts accenting the boat trailer, a layer of paint will protect their ferrous-heavy outlines. However, a slight scratch is enough to allow the water to overcome that flimsy coating. If the trailer absolutely must have steel parts, perhaps for the axles or undercarriage, they should be galvanized to assure absolute rust-free performance.
Boat-to-Trailer Strengths and Weaknesses
Galvanized parts are welcome, but remember what happens when dissimilar metals touch. If galvanized cross members react with another part of the trailer, and if the salt water acts as a third-party electrolyte, the material will corrode. Incidentally, just as steel can be galvanized, it’s worth considering an anodized aluminium frame. Coated via this electrolytic passivation process, that second layer of protection really ensures material durability.
If the boat trailer is bolted together, it needs specially coated or finished fasteners to make its frame sturdy. Fitted with washers, the bolts won’t rust or loosen. However, a fully welded aluminium boat trailer is certain to outlast a bolted trailer. Do remember, however, that substandard welds will crack, so the weld quality used to fasten the struts and cross members must be of a high standard. Apparently, aluminium can be a hard metal to weld, so a boat trailer fabricator who specializes in this service is obviously preferable.
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