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Why Choose an SX4
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.
The SX4-4936 is the most popular length for a four axle trailer. Lift axles and steerable axles are common options to add on this series.
SX4 Features
- 46’ to 50’ foot frame lengths
- Stockpile or windrow
- Watertight; no leaks
- Low load height
- Dumps toward either side
- AR450 Steel Tub, One Piece Floor
- 80/100 KSI Steel Frames
- Self-Aligning, Spherical Bearing Hinges
- External Column Tub Supports
- No Center Tub Divider
- Shot Blast Paint Prep
- Polyurethane Paint
Specifications
SX Series Tub Capacities
| Waterfull | Heaped | |
|---|---|---|
| 34’ tub | 23 cu yd | 31 cu yd |
| 36’ tub | 24 cu yd | 32 cu yd |
Model SX4-4636 SmithCo Side Dump Trailer
Specs shown are for 46’ frame length; other configurations available.
| Frame Length | 46’ |
| Tub Length | 36’ |
| Width | 102' |
| Height | 8’ 7” at Tub side, 9’ 10” at Center |
| Tub Construction | 1/4" Thick, AR450 Steel (or equivalent) 3/16” Thick , AR450 Steel (or equivalent) is optional External column supports, no center tub divider |
| Frame Construction | 80/100 KSI, Fabricated Steel I-beam |
| Kingpin | 2" Kingpin, 18" Setting, Replaceable Type |
| Landing Gear | Two Speed, Non-Load Bearing |
| Bumper | Push Bar Type, Bolt-On |
| Cylinders | 3500 PSI, 5" bore |
| Hinges | Self-Aligning, Spherical Bearing Type (greaseable) |
| Suspension | Air Ride Suspension Standard; Spring Ride Available |
| Axles | (4) 25,000# capacity |
| Hubs | 10 Hole, Hub Piloted |
| ABS | 2S1M Anti-Lock Brake System |
| Drums | Outboard Mount, Cast Steel |
| Wheels | Steel Disc, 8.25 x 22.5 (16) |
| Tires | 11R 22.5 G Radial Tires (16) |
| Brakes | 16 1/2" x 7" |
| Fenders | Front & Rear, 1/4" Synthetic, 7 Degree Slope |
| Lights | 12 Volt ICC w/ Sealed Harness |
| Mud Flap | (2) Polyline Anti-Spray Splash Guard w/SmithCo name |
| Paint | Polyurethane, any combination of gray, white or black Special colors available upon request |
| Min. Tractor Hydraulic Reqs. | 25-30 GPM 2,600-2,800 PSI 10 Gallon Reservoir |
Layout Options
Photos
