2026 SmithCo SX6-53-40 Side Dump · Unit RT-45

SmithCo SX6-53-40 – Side Dump, 53-foot x 102-inch, 40-foot tub

SmithCo SX6-53-40 is a 6-axle side dump with a 40-foot round bottom tub built from 3/16″ AR450 steel.

Key Specs

• Model: SX6-53-40
• Frame: 53-foot length
• Width: 102-inch width
• Tub: 40-foot round bottom
• Material: 3/16″ AR450 steel
• Capacity: ~35.6 cubic yards (heaped)
• Payload: up to 37.4 tons

Tub Construction

• Style: 40-foot round bottom
• Material: 3/16″ AR450 steel sides & floor

Axles & Suspension

• Axles: 3 fixed 25K axles + 3 steerable/liftable 13,200 lb axles
• Suspension: Ridewell RW260 Air Ride

Hydraulics & Control

• Controls: Electric/hydraulic controls

Additional Features

• Can windrow/stockpile to either side
• High capacity for single-trailer hauling

VIN

• 1S9SS: SmithCo, SX6 Side Dump, 102" wide
• 5362: 53' Frame, 40' Tub, 6 Axles
• T: Model Year 2026
• L476714: Unique Serial Number