2023 SMITHCO, SX4 Semi-Trailers - Dump Trailers - Side, SMITHCO Side Dumps are The Most Stable Side Dump on the Market. 2023 SmithCo Sx4 4-Axle Side Dump Trailer BRIDGE 49' Frame Length 49" Axle Spacing 18" Kingpin Setting FRAME & UNDERCARRIAGE High Tensile Tapered Frame 80/100ksi, Fabricated Steel I-Beam Frame Replaceable Kingpin Bolt-on Push Block 2-Speed Landing Legs (non-load bearing) Front & Rear Fenders LED Lights w/Theft Proof Bezels Neway RAR-260 Air Ride Suspension 1st Axle Air Lift (6) 12.5 x 22.5 Aluminum Wheels (6) 385/65R22.5 Super Single Radial Tires 4th Axle Steerable Air Lift / Air Lift (2) 11R22.5 Radial Tires (2) 8.25 x 22.5 Aluminum Wheels (3) 25,000#, 77½" Wide Trac Axles Outboard Hubs / Cast Drums 16½" x 7" Brakes Oil Bath Hubs Anti-Lock Braking Systems 2S1M Hub Piloted wheels TUB 36' Length Tub - Round Bottom 24 Cubic Yard Capacity - Level Full 32 Cubic Yard Capacity - Heaped AR400 Steel Construction Low Slung Center Stabilizer/Divider Water Tight Tub w/Drain Plugs HYDRAULICS (2) Hydraulic Cylinders - 5" Bore @3,000psi Hydraulic Valve Mounted in Trailer (w/power beyond), Electric Actuated, Air Ride Suspension, Composition, , , L x W x H: 36 x 102 x
