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TRAILERS SA, trailer retailer in Hartswater, Northern Cape
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Double-Axle Cargo Trailers

17 models

A double-axle cargo trailer runs twin braked axles for a 3,000 kg gross vehicle mass. We stock them on 3 m and 4 m decks over a 100 x 50 mm chassis, with 14 inch wheels, 8-blade leaf springs and a damped galvanised cast-iron coupler.

Two axles do two things. They double the load rating, and more importantly they change how the trailer behaves. A tandem sits flatter under an uneven load, resists the pitching that a single axle transmits straight into the tow ball, and stays composed at highway speed in a way a single-axle trailer at the top of its rating does not. If a wheel deflates, the second axle on that side carries the corner long enough to stop safely.

The chassis steps up to match. Where the single-axle trailers use 75 x 38 mm U-channel, these run 100 x 50 mm, which is what stops a 4 m deck flexing in the middle when the load is concentrated over one point.

Deck options cover 3.0 x 1.5 m with 900 mm sides, 4.0 x 1.5 m, and 4.0 x 1.8 m with 1.2 m sides. The 1.8 m wide deck is worth the extra where you are loading pallets, because 300 mm of width is the difference between a pallet fitting square and sitting skew across the trailer for 400 kilometres.

Couplers are rated from two tonnes to 2.7 tonnes braked, in damped galvanised cast iron. High-side mesh versions are available where the load is bulky, and drop sides on all four faces are standard.

Prices here span two build tiers, so a wide gap between similar decks is expected rather than an error. The lower-priced tandems are lighter-duty builds for occasional heavy loads. The premium tandems come from a nationally distributed range and list tare, GVM and payload on every model, which is what a hire fleet needs to prove a load is legal at a weighbridge.

This is the specification for hire fleets, contractors and anyone whose trailer earns money rather than helping on weekends.

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