I came accross this today I am not sure if its a good or bad idea although the workmanship was very good.

I think it's innovative, but a collosal bad idea.  It removes a lot of tongue weight on the lead trailer.  It may pull OK untill you hit some bunps in the road that 'teeter-totter' the pumps and in turn lift the tow vehicle and you lose control.  (I wonder how I know that?  - Suffice it to say, there was a lot of tire creeching going on and some white knuckles until it all settled down - 'NUFF SED!)  No more double-towing for me!!

One major prob. with this unit Is the the hopper mount to the frame. I would hate to see that trailer being pull down the road by only the hydro. hoses. because your pump kit was yanked out from between the frame. Looks clean though.

I guess it should be aproved by some kind of legal road institution before you can use it legaly.. At one hand you would think if it can stand 80 bars it should be stroung enough.. At the other hand the forces will hit it in a totaly different way than normal. I would not do it if it was me..

Lol i actually thought of something like this but not done that way. But i had an idea one time that you could have a city pump tow a small seprate placing boom that is mounted on tracks you would then pull up to the job unload the boom from the trailer park the trailer out of the way then set the boom up and pump and connect system between the 2 lol im no engineer though...

hammah,  i realy like your idea - i do also have a similar idea as you, sins a few years ago. But Swedish trafficlaws don´t like my idea, weightlimit and so on... My idea can be legal in Sweden, but then i got to have a big truck to tow it - and that´s why the idea is useless in the Swedish strictly law and licens-society.

I have to agree with Pumpjockey. Tried loading hopper and towing and nearly wrecked. Tandem on pump might be answer.

I towed mt B50 with mud in the hopper, there was a diference in how it handled, but not like when I had another trailer behind.  I welded a receiver hitch tube to the hopper under the outlet.  Bumps in the road and speed were the difference, especially speed.  Reciever was handy for getting towed out backwards, though.  I'd never tow anything (heavy) behind a pump, especially a single axle pump chassis, maybe a small wheeled cement or mortar mixer if it was a special job, but I'd take it slow.  The 'invention' as pictured is not how I'd do it.

But if that pump not is a trailerpump - it can also be a linepumptruck. And that is what i ment in my earlier reply, a linepumptruck.

A doubbletrailer-vehicle in Sweden is only allowed to drive as fast as a farmers tractor (18,6 mph). But if the first trailer is conected by a kingpin (as a semitrailer) to a heavy truck, then it´s ok to use the normaly trucktrailer-speed on highways. In Sweden 80 km/h (49,7 mph). Truck without trailer 90 km/h (55,9 mph)

Oh my. If its a linepump not a trailer then I spoke too soon.

A truck-mount would handle much better, but I still don't liken tthe idea of how this mechanism stresses the outlet, nevermind the mounting points of the hopper.

When I welded the reciever on my B50, I was very satisfied with the stucture of how the hopper was mounted to the trailer chassis.  The being said, an engineer would likely have a different opinion.

This is much like using a boom as a crane, that/this was not the intended and designed purpose.

That looks like a truck mount pump

I agree with you "pumpjockey". Why not in some how make the trailer to be conected in to the chassie instead? Much safer and better, in my opinion.