Construction pup cp30


SmithCo’s Construction Pup is designed for both off-road construction and agriculture; it can be pulled with off-road construction power units or tractors.

The configuration flexibility offered by the CP30 trailer allows you to run a single 30-ton unit in tight conditions or hook them in tandem or triple combinations to move large amounts of materials.

These trailers are available in 30 ton capacity with a variety of construction grade or flotation type tires. A 2″ drawbar pin type hitch is standard but scraper type adapters are also available.

Whether you want to top load materials your scraper can’t handle or you want to haul ag products to the field, the CP Series is the perfect choice.

Read how to haul more and haul better with a CP30.


  • 30 ton capacity
  • Dumps toward either side
  • Stockpile or windrow
  • Watertight; no leaks
  • Low load height
  • Steel Tubs AR400
  • 80/100 KSI Steel Frames
  • 30 K Axles
  • 90k walking beam
  • Flotation Tires


CP30 Tub Capacities

30-ton Tub

15 cu yd

22 cu yd (Bolt On Extensions to 49 cu yd available)

CP30 SmithCo Side Dump Trailer

20-ton model also available.

Frame Length

30' 9"

Tub Length



10' (120")

Loading Height


Towing Eye

Side Oscillating, 2" Drawbar Pin, 360 degree rotation

Safety Chains

1/2" Safety Chains w/ Safety Hooks

Tub Construction

1/4" Thick, Steel (or equivalent)

AR 400 Round Floor Style Tub

Frame Construction

80/100 KSI, Fabricated Steel I-Beam

Landing Gear

High Clearance

Cylinders 3500 PSI, 5" bore
Hinges Self-Aligning, Spherical Bearing Type (greaseable)

90K Single Point Walking Beam


30,000# Capacity

Hubs 10 Hole, Hub Piloted
Drums Outboard Mount, Cast Steel

Hydraulic and Air Available


Tubeless, Steel Disc


750/45 R 22.5 LGP (std)

Lights 12 Volt ICC w/ Sealed Harness

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

Net Payload Rating 30 tons

Layout Options

CP30 Rear View
Model CP30 Rear
Model CP30