2026 SmithCo SX5-49-38 Side Dump · Unit RT-70

SmithCo SX5-49-38 – Side Dump, 49' x 38', AR450

SmithCo SX5-49-38 side dump trailer with a 49-foot frame and a 38-foot AR450 round-bottom tub with 34-cubic-yard capacity.

Key Specs

• Year: 2026
• Model: SX5-49-38 (SX Series)
• Frame length: 49' frame
• Tub length: 38' tub
• Width: 102" wide
• Capacity: 34 cubic yards (heaped) or 25.5 cubic yards (water level)
• Axles: 5-axle

Tub Construction

• Material: AR450 steel tub
• Shape: round-bottom
• Frame: 80/100 KSI steel frame

Hydraulics & Control

• Dumping: Hydraulic dump to either side
• Cylinders: 5-inch dumping cylinders
• Control valve: hydraulic control valve on the trailer

Axles & Suspension

• Suspension: Ridewell RW260 air ride
• Axle features: 1st & 5th axles are steerable/liftable

Wheels & Tires

• Wheels: Hub-piloted aluminum wheels
• Tires: 385/65R22.5 "J" ply super single tires

Additional Features

• Tarp: Electric roll-over mesh tarp
• Safety/Misc: Integrated push block; LED lighting; self-aligning spherical bearing hinges
• Applications: construction, mining, and agriculture; suitable for windrow and stockpile dumping; engineered for high stability on uneven terrain