Ifyou can't handle people posting what they think, don't post a build thread about it. I know I am not the only one who is thinking about the strength. Like I said already if it's for looks fine. Safety is different.

 

Jersey can you please it explain to us why you think makes this bumper is unsafe?

I'm being serious, please break down in detail from an engineering standpoint what makes this a safety concern? All you have mentioned is the Tensile Strength, with no mention Compressive and Yield strength that are also factors in overall material strength. Grade A Sch 80 pipe has a tensile strength of 48,000 and Grade B is 60,000.

Are those people wheeling on stock bumpers being unsafe? This is way stronger than stamped sheet metal, assuming its tied into the frame properly. I feel people throw the "safety" word around a little to liberally.

 

Yeah Gary...go get em..... Your right though.

 

I work with pipe all day 1.25 is a little small for aggressive pulls it will bend i suggest hooking as close to tie in is as possible to distribut the pull. 2 inch is more stought.

 

I would also love to hear this explanation!

Yes my d ring mounts from which i would be getting pulled or winched and directly tied into the unibody with 5 bolts on each side and welded generously.

 

Should work then sch 40 and 80 will bends as any type tubing will my trail buddy bent 6 inch sch 40 on old type pole mounted guard rail it lost the battle but pipe new it been in a fight for sure ...

 

I'm not saying the bumper itself is unsafe. The way the hitch is mounted to the bumper itself is what is not safe. As freegdr just mentioned it will bend. This is the point I am stressing. The material cannot handle the stress of such a force like pulling or jerking motions. All I'm saying is if I had seen the materials used to build this, I would not risk my equipment trying to recover him. The Northeast group that I wheel with from this forum would have the same opinion. We have learned from experience. Sure you may never have seen it happen yet. What I am trying to explain to you is that it can happen. I am offering you preventative measures to avoid injury to yourselves and others. You're not going to get an engineering standpoint from me because I'm not an engineer, I'm a sales manager. I do know enough though that I don't use certain material for a project. When I build my hitch I used 2" DOM and 3/8" plate with gussets all over it. Why? Because when it comes to something that you will be using to recover and pull a vehicle I will sway towards the side of overkill every time. If you look back to my previous statements you will see that I am concerned about the safety issue the whole tim.

"If you do plan on recovering another vehicle or getting recovered I would rethink the material. To me, my safety and the safety of those around me is not worth saving a couple dollars. Not trying to break down your fab work, just giving some info for people looking to do the same thing."

This is an open forum for people to ask questions and give feedback on the topic. I've never seen anyone get so bent out of shape before of a simple comment of safety. I could understand if somebody from Pirate4x4 was on here going off about how it's not crawler ready. That's not what this forum is and that's why I'm not on pirate either. I would welcome any further issues people may have with my input on someone's fab thread. Never once though did I say that it was poorly built or half a**ed or anything derogatory about the fab. I simply mentioned material choice.

 

I'm not bent out of shape by any means. Just a little tired of the bad information I read on forums. And I disagree with your assessment that this is somehow unsafe.

Now neither You nor I have seen in greater detail how its tied into the Unibody, but for arguments sake lets say it was done correctly and is plenty strong. We have a small sample of pictures to analyze.

We can see in the picture of it mounted that he has 2 rails running horizontal with the hitch mounted somewhat behind it. He also has tied the the two rails together effective creating gussets right next to the hitch, looks like he used at least 1/4" plate for the mounts. It's a stout design and pleasing to the eye. Where is the failure going to occur during an extraction? You're just assuming based on some tensile strength numbers that don't tell the entire story!

I'm not in sales, fabricating is the only job I've had since high school, 26,000 billable hours since 98'. We build structual stuff out of pipe all the time, equipment that would actually pose a legitimate saftey risk if it failed. The material itself is adequate, albeit not ideal, for the task at hand. The Unibody itself would come apart before the bumper would.

 

As you can see from the picture below it is tied into the stock hitch mounts, so not only is it sturdy and structurally sound but its almost a half inch thick. If half inch isnt "overkill" for bumper mounts idk what is. there is no possible way this bumper is going any where. Idk what you dont understand, i have already agreed that DOM TUBE IS STRONGER! STFU and stop repeating the same crap! Ill build my stuff you build yours!

Attachment 157737

 

 

1990 relax a little bit bro, this is after all a discussion board, he has and is entitled to his opinion, I dont think jersey or anybody else is attacking you in anyway.

This is just a good old fashion useless internet arguement

 

Ok sorry bad day today. I was wrong to say stfu. My apologies. I just posted my bumper build to give ppl ideas and ask questions. I didnt post this up to get told how my bumper is unsafe and is gonna fail. I have built numerous bumpers and i know what im doing. Pipe used correctly is more than strong enough for bumpers, Especially sch 80.

 

so for all of us mallcrawlers. what pipe is recomended. I'm never offraod. just no time. and no money to pay fines.lol.

so what do you guys recomend for us show and goes.

oh and 1990 xjnut...
i would love to get the specs on the brackets. what do you need my email???

everything looks good man. you did a nice job.

 

That all depends on design you want ....Single 4 inch would look good ,double id go 2 inch eithet way no thinner than sch 40 remember a bumpers only as good as its mounting ...

 

thankyou. i wanted to do something like hudfab bumbers. since i cant afford to buyem, i figured i'd makem. prolly singe 2." tube with front hitch and D-rings with a couple of light mounts.
thanks again.

here is a ? for ya's....Could i use my stock hangers from the original bumber? assuming i beef them up? Or is that just completeley idiotic.