HIGHLIGHTS & VALUES

55 Tons Concentrated — Real Capacity That Matters

This model carries 55 tons in 12 feet concentrated, or 55 tons in 16 feet in a 3+1 configuration.
This means real-world loads like:

• 349–450 class excavators

• Mid to large dozers

• Heavy pipelayers

• Drill rigs

• Oilfield support equipment

• Material handlers

• Pavers / mills

• Large forestry or demolition machines

• Lifting / crane components

This is the capacity that determines if the job gets done in one trip or two — and the Dominator series is made specifically to handle these real, concentrated loads.

Hydraulic Detachable Neck – Non-Ground Bearing

The LB55-22DD uses a non-ground-bearing hydraulic detachable neck, meaning:

• The trailer does not rely on ground contact when raising or lowering

• It allows setup on uneven terrain

• Safer detaching in soft soil, gravel pads, jobsite mud, and disturbed ground

• Operators can load/unload without damaging the deck or ground

• Faster cycle times, cleaner breakovers, easier loading of low-clearance machines

The spec sheet confirms:
“Non-Ground Bearing Hydraulic Detachable Neck – With Honda Pony Motor.”

This gives you full hydraulic control even if the truck PTO is unavailable.

MAIN STRUCTURE & DECK

Built Around Positive Camber I-Beams

The Dominator frame uses:

• 16” fabricated main beams

• 14” fabricated side rails

• Positive camber for load leveling
  

This prevents sagging under heavy equipment and ensures consistent deck geometry over years of hard use.

Full-Width Apitong Decking

• 1.5" thick

• Apitong is the gold standard hardwood for lowboys due to its strength, density, and resistance to crushing from steel tracks

• Covers the outer bays for machine tracks and outrigger usage
  

Deck Dimensions

• Overall length: 53'

• Deck length: 25'

• Deck height loaded: 22" (very low for large machines / tall loads)
  

Widening Brackets Installed

11 pairs of 12" brackets allow the trailer to extend the deck width to 10' wide with planks or inserts.

Perfect for excavators, dozers, graders, or tracked equipment that sits wide.

GOOSENECK SPECS

Kingpin & Hook-Up

• Kingpin setting: 16"

• Kingpin height: Adjustable — 50" with 4 load height positions (24", 22", 20", 18")

• Swing radius: 102"
  

This flexibility helps operators match different tractors and maintain proper axle distribution.

AXLES, SUSPENSION & RUNNING GEAR

Tri-Axle Setup

• (3) 25,000 lb axles

• 54.5" axle spacing

• Auto slack adjusters
  

Air Ride Suspension with Rear Lift

• Smooth ride under heavy loads

• Rear axle lift saves tire wear and turns tighter when empty
  

Wheels & Tires

• Hub-piloted disc wheels

• 275/70R22.5 tires
  

Brake System

• Type 30/30 spring brakes on two axles

• D.O.T. sealed wiring harness

• LED lights w/ amber strobes in the bumper and battery backup
  

LOADING & OPERATION FEATURES

Front Slope & Loading Geometry

The trailer features a tapered front slope with traction bars — critical for machines with steel tracks or low-clearance undercarriages.

Boom Trough

Open V-style crossmembers to cradle excavator booms lower into the deck —
reduces load height and improves stability.

Wheel Well

Covered wheel well with steel check plate.

TRANSPORT FLEXIBILITY — 4TH AXLE READY

This trailer is plumbed and bracketed for a 4th flip axle.

• All hydraulics installed

• All brackets welded from the factory

• Ready for a booster when hauling overweight loads

Spec Sheet:
“Setup for 4th Flip… trailer brackets mounted for 4th flip only”

This gives you a future-proof platform as state weight restrictions or missions change.

TIE-DOWNS, STORAGE & HARDWARE

D-Rings

• 16 heavy-duty D-rings positioned along the deck for versatile load securement
  

Toolbox

• Lockable toolbox in front of the deck
  

Paint

• Factory black finish
  

IDEAL USES

This trailer is engineered for:

• Large excavators

• Bulldozers (D7–D10 class depending on spec)

• Forestry equipment

• Pipeline machinery

• Mining & aggregate machines

• Large crushers & screeners

• Pump units, gensets, compressors

• Crane components

• Oversized industrial equipment

Anything requiring low loading height, strong side beams, and a reliable RGN detacher is a perfect candidate.

WHY THIS DOMINATOR IS PERFECT FOR ATSR CUSTOMERS

Across Amarillo, Lubbock, Odessa, and greater West Texas, heavy-haul contractors prefer trailers that:

• Survive oilfield caliche roads

• Hold up under frequent detaching

• Support heavy tracked equipment

• Can be upgraded to a 4th axle

• Offer flexible deck heights

• Deliver long-term value

The Dorsey Dominator LB55-22DD delivers all of that — and more — with industry-leading structural integrity and practical features that matter on real jobsites.