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Overview
The SX7 is the industry's first 7-axle side dump trailer.
The SX7's design allows operators with a standard CDL to haul up to 40 tons in a single trailer with easier manueverability and less upfront cost than doubles or a train set.
Cylinders are positioned at each end of the tub, rather than in the middle. This allows us to adjust the tub’s position on the frame, optimizing load distribution across the trailer. This flexibility is key to achieving the maximum load capacity. This cylinder design also makes the SX series more durable than other side dump trailers on the market.
The SX7 can comfortably offer a 40-ton hauling capacity in a single trailer without exceeding 129,000 GVW rating with the right truck configuration. SmithCo offers custom bridge law drawings to help you choose the right setup for your needs.
Features
- 40 ton haul capacity
- 40 foot tub length
- 53 foot frame length
- Stockpile or windrow
- Watertight; no leaks
- Low load height
- Dumps toward either side
- 3 fixed axles, 4 steerable axles
- 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
| Waterfull | Heaped | |
|---|---|---|
| 40’ tub | 26.8 cu yd | 35.6 cu yd |
Model SX7 SmithCo Side Dump Trailer
Specs shown are for 49’ frame length; other configurations available.
| Frame Length | 53' |
| Tub Length | 40’ |
| Width | 102” |
| Height | 8’ 7” at Tub side, 9’ 7” 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, 16" Setting, Replaceable Type |
| Landing Gear | Two Speed, Load Bearing |
| Bumper | Push Bar Type, Bolt-On |
| Cylinders | 3500 PSI, 6" bore |
| Hinges | Self-Aligning, Spherical Bearing Type (greaseable) |
| Suspension | Air Ride Suspension Standard |
| Axles | (3) 25,000# capacity (4) 13.2K Air Ride/Lift/Steerable |
| Hubs | 10 Hole, Hub Piloted |
| ABS | 2S1M Anti-Lock Brake System |
| Drums | Outboard Mount, Cast Steel |
| Wheels | Steel Disc, 8.25 X 22.5 (12), 9 X 22.5 on Steerable/lift (8) |
| Tires | 11 R 22.5 G Radial Tires on Mains 295/75 R 22.5 on Steerable/lift |
| Brakes | 16 1/2" x 7" std, Disc Brakes available |
| Fenders | Front & Rear, 1/4" Synthetic, 7 Degree Slope |
| Lights | 12 Volt LED, ICC w/ Sealed Harness |
| Mud Flap | (4) 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 3000 PSI 10 Gallon Reservoir |
Layout Options
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