Centerline 55T Rigid Neck Lowbed

Centerline 55T Rigid Neck Lowboy in Edmonton

Centerline 55T Single Drop Rigid Neck

The Centerline 55T Rigid Neck Lowbed has been engineered and fabricated to haul heavy equipment through rugged terrain. Our single drop rail designs gives you the ground clearance you need to easily clear harsh terrain.

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Trailer Features


We use a short, narrow gooseneck with one removable king pin. A staircase in the neck provides safe access to the king pin area.

Neck Extension

If you need to increase your payload, this trailer comes standard equipped with a pin on flip over neck extension for use with a tandem jeep.


All fabricated QT100 mainframe design makes this trailer strong and able to handle heavy loads.

Working Deck

A 10’ x 25’ working deck gives you plenty of loading space.


We use a 30” wide bolster that has a QT100 3/8” top plate for added strength when loading equipment onto the trailer.


Full width beavertails with traction bars and QT100 3/8” top plates, makes loading equipment onto the deck very easy.

Model SD55T-3
Rigid Gooseneck Capacity 55 ton distributed evenly over 15’ of deck
Width 10'0"
Length 53’3” without neck extension
Gooseneck Length 11'4"
Main Deck Length 25'3"
Deck Height 44" unladen
King Pin Height 51" unladen
King Pin Setting 16"
Gooseneck Short, narrow, rigid gooseneck c/w removable king pin, Narrow pickup throat on front of trailer, Pin on flip over neck extension for use with tandem jeep, Steel bulk head for added stiffness, Aluminum checker plate fenders mounted on main deck
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
Crossmembers Main deck 10” x 4” wide flange crossmembers at 24” nominal centers
Landing Gear Pin up drop tube style legs to support empty trailer
Deck Material 3” fir rough decking on main deck and between rear frame
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 3/8” top plate and open over rear frame wheel wells, Provisions for single axle common air booster
Chain Pockets High tensile formed chain pockets, (3) pair installed on gooseneck side webb, Opposite each crossmember on maindeck, Mounted on bolster underside ends
Load Securement (5) three bar load winches spaced along main deck 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) 30,000 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” track width (10’0” wide over tires)
Axle Spacing 60"
Brake Linings Quick change 16 ½ x 7 brake blocks & enclosed cam tubes
Slack Adjusters Automatic slack adjusters
Hubs/Drums 10 stud hub piloted and cast outboard drums
Wheels 10 stud 8.25 x 22.5 pilot mount steel disc - silver
Tires 275/70R-22.5 radial tires
Lighting Integrated wiring harness with junction boxes, Rubber mounted LED sealed beam lighting system, (2) Pair swing out wide load lights at front and rear deck of lowbed (wide load flap pockets mounted on outside edge), (1) pair of amber strobe lights mounted on rear of lowbed
Finish Sandblasted, Epoxy Primer & PPG Urethane Paint - Black or Grey
Safety Stripe Applied as per regulation
Document Holder Installed on frame 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 30-80 ton main frame capacities
  • Available in different main rail profiles, widths, and lengths
  • Tuff-Lift axle lift system (+)
  • Tridrive tractor compatible neck
  • Available in different tire and rim combinations
  • Rubber belting on main deck outer area

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