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SmithCo's S4 series works in states that allow extended weights and is usually used in a line-haul application. The S4-4936 is the more popular length. Some states allow extended weight but cap the number of axles you can use, sometimes a shorter trailer with more axles will fit your application better. Because the load dumps to the side, axle locations are not restricted like other dump trailers. Lift axles and steerable axles are common options on this series.
 Download PDF Spec Sheet
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Model S4-4636 SmithCo Side-Dump Trailer
Tub Length: 36’ Width: 102” Height: 8’ 2” @ Tub Side, 9’ 4” @ Center Tub Capacity: Round Bottom Tub, 24 Cubic Yard, Waterfull Round Bottom Tub, 32 Cubic Yard, Full Capacity V-Shaped Tub, 25 Cubic Yard, Waterfull V-Shaped Tub, 32.5 Cubic Yard, Full Capacity Tub Construction: 1/4” Thick, AR400 Steel (or equivalent) 3/16” Thick, AR400 Steel (or equivalent) is Optional Frame Construction: 80/100 KSI, Fabricated Steel I-Beam Landing Gear: Two Speed, Non-Load Bearing Bumper: Push Bar Type, Bolt-On Cylinders: 3000 PSI, 5: bore Suspension: Holland/Binkley 8 Spring, 3 Leaf Springs 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: 11 R 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: White Tub; Gray Frame (Special colors are available upon request) Minimum Tractor Hydraulic Requirements: 25-30 GPM, 2,200-2,400 PSI, 10 Gallon Reservoir
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