Walking Beam Suspension Plans – 4K w/ Torsion Axles

Walking Beam Suspension Plans – 4K w/ Torsion Axles

Walking-Beam style trailer suspension plans are engineered for mid-size trailers.  The design combines benefits of torsion axles with the excellent tandem load sharing of twin pivot beams.  2000 – 4400 lbs Capacity.

Free Digital Delivery — Right Now*

$ 19.99 - Complete Plans

* Plans are in a computer document. You may Save them to your computer immediately after Payment.

Description

Description

Walking beam suspension are on big trucks, huge trailers and industrial machinery.  They offer some great ride and load management benefit for those big vehicles.  Yet, why should the big boys have it all?

Here’s an innovative variation of the walking beam suspension — for smaller trailers — that goes one step further with torsion axles for drastically improved ride quality.  These are the 2K – 4K plans.  For heavier trailer please see the 5K – 8K plans.

Engineered For Smaller Trailers

Bringing the benefits of the walking beam suspension to smaller trailers is the goal of this design.  A 4000# trailer may not seem smaller, but compared to 60K or 100K, something to pull with a car is “smaller”.

The walking beam suspension is complicated in some design aspects, but we’ve simplified it for DIY.  Read about the design.  Then, if you’re really interested in details, please read the Case Study for the Twin Torsion Engineering.   Finally, you can see the suspension in action in this post and video.  With lots of miles since then, the benefits are definitely worth it.

Feel free to add this suspension to any of our 3500# utility trailers instead of the axle specified.  Yes, they are strong enough to handle the added weight if you want and make them 4000# capacity trailers.  The ideal ones are the 5’x10′ Utility Trailer, and the 6’x12′ Utility Trailer.

Add To Cart

Specifications

Specifications

Walking Beam Suspension Plans – 4K w/ Torsion Axles

Blueprints for Success with Tandem Torsion Axles

  • This design is NOT a trailer, just the suspension system for a trailer.
  • Walking beam suspension has a pair of matching torsion axles giving a total capacity range from 2000 lbs up to 4400 lbs.  Build it to meet your needs.  Options are in the plans.
  • The design adapts to trailers of most any width.  It’s as simple as making the right offset.  Formula is in the plans.
  • 5″ axle step height differential — not including torsion arm suspension motion.  It’s like 5″ suspension travel, but really it’s 2.5″ up in front and 2.5″ down in back (or vise versa).  For a speed bump or pothole, it means the trailer only moves half as much as the bump is high.  And really less than that with torsion axle compression action involved in the dynamics.
  • The lower pivot mount allows 6″+ of axle step height differential.
  • Some pieces are best cut via laser or waterjet.  CAD files for those parts are in the download.
  • Height option has 2 mounting locations to adjust for trailer size, travel, ground clearance, and desired step height.
  • Plans allow torsion axles with various arm start angle options to give more ground clearance or lower trailer deck height.
  • Plans include complete drawings and instructions as well as CAD files for the special parts.  Download the whole package in a single .ZIP file.

Add To Cart

More About The Design Features

More About The Design Features

Benefits Of Adding Torsion Axles

Twin Torsions on a Walking Beam SuspensionThe walking beam suspension has a lot of great benefits all by itself, but we went one step further.  Torsion axles are great for a softer ride, but in a typical mounting — because they don’t load share.  The walking beam, by definition, is a load sharing platform, so this design combines the benefits of torsion axles with the walking beam.  This suspension is the result, and now you can build one too.

The plans are Engineered by Synthesis, and they have already proven their viability.  The walking beam suspension won’t conquer load distribution problems, but it will definitely smooth out the ride.   Get the plans, build the carriers, and change the way your trailer tows.

Construction Requires Metal Cutting, Drilling, Welding, Precision Setup and Some Outsourced CNC Cut Parts.

Videos to assist with the setup and alignment are here to watch as well.

Add To Cart

Maximize Your Project

Plans from Mechanical Elements are an awesome start to a great project.  Here are even more resources!

Reminder:

Maximize Your Project

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Walking Beam Suspension Plans – 4K w/ Torsion Axles”

Good planning is the beginning of a successful project.
Great Plans Are Available Here!

We Found These For You . . .

Article
Bend A Metal Bracket
There are a bunch of ways to bend metal for a bracket.  Do a search on YouTube and you’ll likely find several techniques.  Well, we don’t want to dis any of those because

Read The Article

Article
Engineered Trailer Plans Are Not Free Plans
It’s a big dilemma.  Why buy trailer plans (or crane plans or whatever) when you can get free plans?  Some websites have free plans, other places charge.  So what’s the big deal? 

Read The Article

Article
Which I-Beam Shape?
When is an I-Beam not really an “I” Beam?  While it’s common to use the generic term “I-Beam” for any beam with an I shape section, there are actually variations with different letter designations.  And, there are advantages for the…

Read The Article

Article
Walking Beam Trailer Suspension With Twin Torsion Axles
Plans are now available for the Twin Torsion Axle Walking Beam Trailer Suspension.  This was introduced on a build early in 2018, with posts about the trailer including a video of the suspension in action.

Read The Article

Product
Canoe or Kayak Rack

A great way to both store and transport hard body boats like canoes or kayaks.  It’s a simple, scalable rack that disassembles for storage, or opens to hold boats -- for storage or secure trailer transport.

Article
A Scary Trailer Along The Road
When things get weird, we all want to see them. While it's fun to laugh (or be shocked) by yourself, it's even more fun to share with friends. If you see rattle-trap trailers on the road, snap a shot or…

Read The Article

Article
Build it with Torsion Axle Trailer Plans
New Product Announcement:  The Mechanical Elements line of DIY Trailer Blueprints has just expanded with some new sizes for Torsion Axle Trailer Plans.  You ask, then we work to deliver.

Read The Article

Article
Gantry Crane Failure Modes
In the debate about Steel or Aluminum for beams of trailer frames and gantry cranes, there is one piece we hear less about.  An important part of the equation, for sure, is the property of Elasticity . . . .…

Read The Article

Article
Thread Tapping Straight
A Tap and Die set is a near must for a DIY fab shop.  While the thread creating functions are pretty easy to visualize, sometimes getting the tread to start straight and run true is a different matter.

Read The Article

Article
New Trailer Test Ride
When the rubber meets the road, that’s when the feeling of real accomplishment kicks in.  This is the first on-road trailer test with (with video) of our new frame and funky walking beam suspension design.

Read The Article