Centerline 55T Rigid Neck Lowbed

The Centerline 55T Rigid Neck Lowbed has been engineered and fabricated to haul heavy equipment through rugged terrain.


Centerline Rigid Neck Lowbed


Centerline Lowbed

Neck Extension

Centerline 55T Rigid Neck Lowbed


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

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.

Centerline 55T

Working Deck

Centerline 55T Rigid Lowbed


Centerline Lowbed


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.

The Centerline rigid necks are available in a variety of capacities, widths, lengths, and wheel configurations. Contact a Hayworth representative today and customize this trailer to fit your exact needs.


Model SD55T-3
Length 53’3” without neck extension
Width 10'0"
Gooseneck Length 11'4"
Main Deck Length 25'3"
Deck Height 44" unladen
King Pin Height 51" unladen
King Pin Setting 16"
Capacity 55 ton distributed evenly over 15’ of deck
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
Crossmember 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
Electrical System 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, primed and painted with DuPont Imron Elite urethane paint
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
  • Tuff-Lift axle lift system
  • 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
  • Tridrive tractor compatible neck
  • Available in different tire and rim combinations
  • Rubber belting on main deck outer area                               

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