25 and 30 Ton ProSeries Dual Tri-Axle

Our Big Daddy 25 and 30 Ton Dual Tri-Axle trailers are built to make most lowboys jealous. These are the largest tagalong trailers available and we have plenty of experience building them. We recommend our heavy duty, 3 x 7.5' hidden hydraulic, ramps to move large equipment with ease. Large main frames and 4 I-Beam construction with dual 2 speed bolt on jacks is a monster of a tag trailer.

Winston Dual Tri-axle Equipment Trailers are available in 25 and 30 Ton Models. These Heavy Duty LowProfile Tagalong Trailers are designed to haul all types or construction equipment. Low Profile Design with high quality components with many features.

Construction: These Heavy Duty Trailers are "Built to Make Most Lowboys Jealous". Winston Trailers uses 4 I-beam construction (2 main frame I-beams, plus 2 siderail I-beams joined together with upper and lower cross members and bracing).

CNC Pierced Main Frame: One piece 14' Hi-Tensile I-Beams are CNC Plasma pierced for precise clean cuts with extreme consistency.

Siderails: Winston uses Hi-Tensile I Beam Siderails with CNC Plasma Diamond Cut outs for extra tie-downs in conjunction with I D-Rings providing securement of equipment.

Reinforcement: Cross members are inserted through the pierced frames, with belly braces and side bracing provide the unitized frame. Add suspension manufactures recommended hanger bracing produces a frame with ridged stability.

Diamond Cut Outs: Positive Cargo Securement against movement of an article in any direction. *49 CFR 393.102

1' Bent D-Rings: 55B angle relieves some stress load from the clip and ring. Ultimate Breaking Strength 46,760 lbs. Safe Working Load: 15,586 lbs.

Full 102 'Wide: Wide track equipment can cover stake-pockets making them difficult to tie to.

Diamonds & D-Rings: On a standard 20 Ton, 6 D-rings + 26 Diamond Cut Outs = 32 Total Tie down Points.

5 position Adjustable Pintle Hitch

8 Lug Hub Piloted Bud Type Wheels

Dual 2 Speed Bolt on Jacks at 50,000 Lb Rating

Wabco 2S/1M ABS Air Brakes

4 I-Beam Construction

Emergency/Parking Brakes on Both Axles

Lockable Tool Box in Tongue

Double Hinged HD Ramps with Large Sand Pads

Step On Driver Side

Bi-Directional Spring Assist Ramps

Oak Floor Staggered Where Joined

Diamond and D-Ring Tie-downs

H9700 Adjustable Suspension

Sealed Modular Wiring Harness

22,500 Lb Axles Oil Bath Axles

Lifetime LED Lighting

Premium Stemco Oil Seals

PPG Epoxy Primer

Outboard Drums for Easy Brake Inspection

PPG Modified Alkyd Enamel


25 Ton - AP22025AL

30 Ton - AP32225AL




Trailer Weight



Deck Length

30' (25' Flat + 5' Dovetail)

30' (25' Flat + 5' Dovetail)

Deck Width



Deck Height Empty



Main Beam

14" at 30# I Beam G50+

14" at 38# I Beam G50+


215/75R17.5 H

235/75R17.5 H

Suspension Springs

3 Leaf 22,400 Lb Per Axle

3 Leaf 25,000 Lb Per Axle


HD 20.5 x 60" Ladder Style

HD 20.5 x 60" Ladder Style

*Maximum GVWR with Weight Distributed Evenly, Not to Exceed Ratings of Components or Tow Vehicle.

Never Exceed Tow Vehicle's Towing or Load Specifications. Federal, State, and Local Restrictions may apply to Dimensions and Capacities.

In accordance with our established policy of constant improvement, WTM. Inc. reserves the right to amend these specifications without notice.

Deck Length

Steel Dovetail with Traction Cleats

3' x 7' HD Angle Hyd. Ramps


Air Ride/ Air Lift Front Axle

3'x 7 ½' Wood Filled Hyd. Ramps

Tool Box on Side

4S/2m ABS 2 Axles Sensored

Paver Knife Edge Approach

Spare Tire Carrier

Extra Step

Aluminum Wheels

Spare Tire and Wheel Combo

Flat Deck (No Dovetail or Ramps)

King Pin Low Boy Neck

Self Cleaning Dovetail

Mud Flaps

Other upon Request


D-Ring Stiffeners



Air Ride/Air Lift Front axle available on 25 and 30 Ton Tri-axles

24 x 24 Bucket plate with D ring for Tiedown

Positive Camber add to Frame to prevent Sagging or Bellied out Deck. Set up like a boy dog.

Solid Cleated Dovetail Inserts

2+5' Double Break Dovetail for Easier Loading and Transition with Hydraulic Paver Ramps

17,000 lb Elect/ hydraulic Jack

3 x 7.5' Wood Filled 4 I-Beam Ramps with Hidden Hydraulics.

Approach Plates on Hydraulic Ramps for pavers and Skylifts.

3' x 7' HD Ladder Style Elect/ Hyd. Ramps

Ladder style Self Cleaning Dovetail Inserts

12 x 12 x 48 Side Tool Box

Widen your trailer with swing out brackets.

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