Centerline 40T Rigid Neck Lowbed

Centerline 40T Tridem Rigid Lowboy in Edmonton

Centerline 40T Rigid Neck Lowbed

The Centerline 40T Rigid Neck Lowbed is an incredibly strong, yet lightweight trailer that was designed with the city contractor in mind. It works great in water and sewer settings as well as subdivision development – basically any environment which requires a durable yet relatively small trailer.

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Trailer Features


We use a short, narrow gooseneck with aluminum fenders. A staircase in the neck provides safe access to the lower deck.

Working Deck

A 10’ x 20’ working deck gives you plenty of loading space. Comes with 3” rough fir decking on outside area.


All fabricated QT100 mainframe design makes this trailer strong and able to handle heavy loads while keeping the tare weight down.

Extra Wide Wheel Bolsters

Made out of QT100 3/8” top plate. Internal stiffeners provide strength when loading over tires.

Landing Gear

Equipped with 2-speed landing gear with 100,000 lb. static load rating.


Gentle slope beavertails with traction bars and QT100 3/8” top plates, for easy loading and an extended life cycle.

Model SD40T-RG-3
40T Rigid Gooseneck Capacity 40 ton distributed evenly over 20’ of deck
Width Outside of rails: 10’0”, Outside of chain pockets: 10’5
Length 47'7" (without gooseneck extension)
Main Deck Length 22'0"
Deck Height 42" laden
King Pin Height Main Gooseneck: 52", Gooseneck Extension: 50"
Ground Clearance 25"
Gooseneck Short, narrow, rigid gooseneck, Narrow pickup throat on front of trailer, Steel bulk head for added stiffness, Aluminum checker plate fenders
Main Frame All fabricated QT100 mainframe design c/w selective lightening holes, Beams are stress analyzed for the rated load and designed span of the trailer
Crossmember Main deck W8 @ 10lb. I-Beam crossmembers at 24” O.C.
Landing Gear (2) speed 100,000 lb. static load capacity
Deck Material 2” rough Douglas Fir between rails on main deck, 3” rough Douglas Fir outside rails on main deck
Bolsters Front deck half bolsters for more chaining area on equipment being hauled, Rear deck half bolsters in front of 1st axle tires, Full width, 30” wide bolsters between axles c/w QT100 3/8” top plate for added strength
Beavertail Full width beavertail c/w QT100 1/4” top plate and traction bars
Chain Pockets Formed chain pockets, Opposite each crossmember on maindeck
Load Winches (8) load winches on side rail c/w J-hooks opposite
Wide Load Sign Wide load D-sign mounted on front side of rear light panel, Wide load flap pockets mounted on front side of beavertail, Wide load flap pockets mounted on outside edge of swingout lights
Suspension (3) 25,000 lb. air ride suspension, Air scale and manual dump valve in enclosed box at rear side rail, Restraint chains installed on all axles
Axles (3) 25,000 lb. @ 93.5” track width (10’0” wide over tires)
Axle Spacing 60"
Brakes Quick change 16 ½” x 7” brake blocks & enclosed cam tubes and parking brakes, 2S/1M ABS
Slack Adjusters Automatic slack adjusters
Hubs/Drums 10 stud hub piloted and cast outboard drums
Wheels Steel 10 stud 8.25 x 22.5 pilot mount – silver
Tires 275/70R-22.5 low profile
Lighting Integrated wiring harness, Rubber mounted LED, Swing out wide load lights at front and rear deck of lowbed main deck
Finish Sandblasted, primed, & painted with PPG urethane paint
Safety Stripe Applied as per regulation
Document Holder Installed on side rail of gooseneck
Warranty 1st year – 100% parts & labour, 2nd year – 50% parts & labour, 3rd to 5th year – 50% parts only
  • Available in 8, 12, 16, 24 wheel configurations
  • Available in different main rail profiles, widths and lengths
  • Available in 30-80 ton main frame capacities
  • Tuff-Lift axle lift system (+)
  • Available in different tire and rim combinations
  • Load bearing and no bearing wheel covers
  • Rubber mat deck protector
  • Tridrive compatible neck

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