2025 SmithCo SX SERIES Side Dump Trailer

SmithCo’s SX Series encompasses a number of different trailer models that have varying amounts of axles.
SmithCo’s SX1 Single Axle side dump trailer is primarily used in situations when maneuverability is an issue, or in a doubles operation.
SmithCo’s SX2 Tandem Axle side dump trailer is one of our most popular and versatile models.
SmithCo’s SX3 Three Axle side dump is a popular choice in states allowing extended gross weights for 5-axle+ trailer/truck combos.
SmithCo’s SX4 Four Axle side dump trailer is primarily used in states that allow extended weights and is usually part of a line-haul application.
SmithCo’s SX5 Five Axle side dump trailer is similar to the four axle model, but features a liftable/steerable axle added behind the landing leg area.
SmithCo’s SX6 Six Axle side dump trailer features three standards axles with three Ridewell steerable lift axle suspensions.
SmithCo’s SX7 Seven Axle SmithCo’s allows operators with a standard CDL to haul up to 40 tons in a single trailer.