SX3

Three Axle Side Dump Trailer Find dealers closest to your location. SmithCo’s SX3 Three Axle side dump is a popular choice in states allowing extended gross weights for truck/trailer combinations with more than five axles. The SX3-4234 and SX3-4636 are the most common three axle trailer sizes but lengths run from SX3-3734 to SX3-5036. Shorter to mid-length trailers tend to be used for everyday construction jobs, while the longer three axle trailers are frequently used for line-haul applications. Specs shown are for 41’ 5” frame length; other configurations available. 1/4" Thick, AR450 Steel (or equivalent) 3/16" Thick, AR450 Steel (or equivalent) is Optional External Column Supports, No Center Tub Divider Polyurethane, any combination of gray, white or black Special colors available upon request