Dura Truss

Am I to understand that you're going from 10-feet to 15 feet?

That's what I intend to do. I figured the duratruss would be easier to break down than I-beamn trussing.

I'd like to see a photo or close-up showing the inter-connects. I was hoping they would seat within each other and then safety-type pins would be used to keep them together for the night.

Chris,

Yes that is exactly what I am doing. However, all the pin / clasps that hold the individual 5' sectons together break very easy and I have 3 total broken now. The problem is the pin seperates from the half moon clip that clasps over the circular portion of the truss to lock the pin in place. When it breaks the pin can now slide out 1 side. I have used the system only once and they just fall apart. Other than that, it is a strong / great system!

Ric

Not to be negative, but that doesn't sound very re-assuring.

If the stuff seats within the tubing, it should be very rigid and strong. But if they join without seating, that's never gonna be durable. I don't mind if a pin goes through where the piping slides into each other, but not an external joining solution..

Looking at the assembly instructions, I can see what you're talking about. At least you're saying it's the pin breaking.

I guess what is the problem exactly? It it some sort of weld breaking? Is it just unseating? Maybe it needs a re-design of the pin.

My guess would be that the pins would also be covered under warranty, but ADJ service would need to jump in and give a definitive answer.I know I got a fresh piece of I-Beam truss because a set of holes failed to be drilled.


One of my crank stands uses these pins that have a retainer clip that goes on the other side to ensure no slipping. I would think using a pin with a wide top end and then a hole drilled and one of these retainer clips would be a good cost effective solution. In addition, it would be safe and you could get replacements at most hardware stores in a pinch. I would take a photo and post it, but I I am gearing up for a big event.

The question hasn't asked yet. What are you putting on that truss?

According to the assembly instructions, maximum load for 2 sections is 264 pounds. Because nothing is picking up that extra load by adding a third span, I bet total load drops to around 200 pounds, maybe less. Evenly distributing the weight helpswith overall safety. Even so, this should droop in the middle a little bit.

Now it comes down to the pins again. Since those are the attachment devices, yes, that is the weak point. I think that C part is just to help make things look neat without having to use a more expensive pin and/or use a cotter pin.

I'm sure the pin are aluminum, not steel, but for the weight, solid aluminum like that is amazingly wicked strong. Steel may be cheaper, but in those amounts, cost is negligible, with not much increase in performance.

But, are the pins themselves breaking? I think that's really the key factor. If the pins are not breaking, that's a good thing. You should still calculate how much you're putting up there on the truss. If it's just the C portion, then maybe it's due to excessive drooping or perhaps just not great construction. With that part no doubt being a rather thin sheet metal, it won't take much to mess it up.

I think you're just not providing enough information. Once you share your weight load on there, I think that may point to the true cause of the problem. Then again, maybe not, but I think it needs to be addressed.

I think I may avoid Dura-Truss and go for Global Truss products. I think in m application, heavier duty stand and trussing might be a better option. Even if I go with a medium-grade product, being able to do a 20-foot span with proper crank stands would be more to haul, more weight but also safer. But please keep in mind, I'm not a DJ, I'm doing mainly larger shows, A-List and premium quality acts these days, so my focus is shifting towards the higher end products.

Chris,

The pins have broken during assembly of the 2 or 3 truss sections before it is even placed on the stands. It is where the pin meets the clasp. It looks like it is stamped / pressed in there, but a weld would be a better solution. The only items I put on this truss are 2 Accu Scan 250's, well within its weight specs.

Ric

I would agree. If it's a press fit witout using some temperature-type tricks to ensure no slipping, it ain't gonna hold, and even then, it's questionable. Best is to do a weld all the way around and use SLIGHTLY thicker medal.

Companies have to TRY to save money. Sometimes it works, sometimes not.

You're definately way under load, so it's definately pin construction.

I recently purchased the system, and an extra span of truss as well. Two of the clips were broken right out of the box - So I cannot use the extra stretch of truss until I purchase new clips. If ADJ is trying to make more money by making parts that break easy, it's not a good or safe way to do it!

Hi Steven, Sorry that the clamps arrived damaged. If you could give our service department a call I am sure they would be happy to help you out with getting replacement ones.
Call 800-322-6337 and ask for Service Mon-Friday 11am-7pm central time or 9am-5pm Pacific Standard Time.
Welcome to the forums and sorry for the delay in replying to your post.
Sincerely,

Same thing here, 2013. I bought the dura truss system. 2 of the 6 clips were broken on arrival. I also bought the 5 foot extension, all three clips broken.

If any part is broken the whole thing is broken. It appears this has been a problem for a while with no solution.

I have the same problem with the clips. It would be nice if someone would come up with a better ideal. They are very cheap made and do not last. I have no more right now and have to order some. But they will break to, so it's like wasting money over and over. Not to happy with the product.