20 and 22.5 Ton ProSeries Dual Tandem

The 20 to 22.5 Ton ProSeries Dual Tandem trailers are for Dump Trucks with dozers, excavators, loaders and other heavy equipment. These trailers also feature or 4 I-Beam construction for a second to none high strength trailer. ABS air brakes providing plenty of stopping power professional contractors. Ramp options are available for paving equipment.

Winston Dual Tandem Equipment Trailers are available in 20 and 22.5 Ton Models. These Heavy Duty Deckover 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.

Diamonds & D-Rings:

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

25,000 Lb 2 Speed Bolt on Jack

Wabco 2S/1M ABS Air Brakes

Cold Bent Long Radius Tongue

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


20 Ton - AP22025AL

22.5 Ton - AP22225AL




Trailer Weight



Deck Length

25' (20' Flat + 5' Dovetail)

25' (20' Flat + 5' Dovetail)

Deck Width



Deck Height Empty



Main Beam

14" at 22# I Beam G50+

14" at 26# 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

Deck Length

Self Cleaning Dovetail

3' x 7' HD Angle Hyd. Ramps


Steel Dovetail with Traction Cleats

3'x 7 ½' Wood Filled Hyd. Ramps

Dual Bolt on 2 Speed Jacks

4S/2m ABS Both Axles Sensored

Paver Knife Edge Approach

Tool Box on Side

Extra Step

Aluminum Wheels

Spare Tire Carrier

Flat Deck (No Dovetail or Ramps)

King Pin Low Boy Neck

Spare Tire and Wheel Combo

Mud Flaps

Other upon Request


Polished aluminum 17.6 wheels are available on 15 -30 ton trailers.

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

Bolt on Heavy duty 2 Speed landing Gear

24 x 24 Bucket plate with D ring for Tiedown

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

12 x 12 x 48 Side Tool Box

Widen your trailer with swing out brackets.

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