tube benders? - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Fabrication and body armor
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old December 6th, 2005, 12:54 AM   #1
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default tube benders?

who has what and how do you like them? im looking for a decent priced bender to bend DOM tubing from 2 inch to 1.5, basically roll cages, bumpers, etc...
Chop is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old December 6th, 2005, 08:09 AM   #2
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,647
iTrader: (55)
Mentioned: 1 Post(s)
Default

I don't have a tube bender myself, I have a pipe bender. Cheap and dirty but it gets me through, for now.

Classic $70 harbor freight model, with various pipe dies.

I have done my bed/roll bar with it, and will be doing my sliders and front brushguard/winch bumper with it over the break.

Review:

First, its for pipe, not tube. If you don't know the different, tubing is measured by OD, pipe is actually sized by OD as well, but is listed by a nominal ID that doesn't really mean anything..

By this, I mean a piece of 1-1/4" pipe will always have a 1.66" OD. the 1-1/4" is supposed to be the nominal ID, but it will vary based on the schedule you used. Schedule 40 1-1/4" has a wall thickness of 0.140". Wall thickness isn't the same for different pipe diameters. A 2-1/2" schedule 40 pipe is a 0.204" wall thickness..


Anyway, so, this type is just a hydraulic press with curved dies which force the pipe onto rollers to bend it. So, inherently, there's more pipe disortion than a tube bender.


I find for bends up to about 60 degrees, its pretty good, I can usually get about 70 degrees OK. Beyond that, you'll kink the pipe. I'm going to try a few different techniques to get a bit more than that, but I won't count on it.

For me, its cheap and works pretty well. Pipe is also cheap and always in stock for the sizes I use at the steel yard.

Due to limitations, I try to create my designs to not need sharp angles. Or use compound angles say a 30 and a 60 a little past it, to make a 90. Workks very well/natural for most bumper designs which aren't flat across the truck but stick out more in the middle anyway. The roll bar didn't need any bends beyond 70, and came out pretty good. I had one pipe with 6 bends in it to make the main hoop.

One thing thats a little easier with a pipe bender, is the center of the bend is always the center of the die. So layout can be easier for the non-trained.


I'll definately move up to a real bender once I have my new house/pole barn built in a year or two, but until then, it works..
Haggar is offline   Reply With Quote
Old December 6th, 2005, 09:02 AM   #3
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

cool i was wondering how those benders at HF work thanks for that input

Last edited by Chop; December 6th, 2005 at 02:08 PM.
Chop is offline   Reply With Quote
Old December 6th, 2005, 09:20 AM   #4
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,647
iTrader: (55)
Mentioned: 1 Post(s)
Default

Liek I said, not great, but they do work.

Try bending something too big in them, and I've seen them break. I wouldn't try something 0.250 wall.

You get a good arm workout with it, it can take 50-100 pumps on that jack handle to bend something strong to 70 degrees..

I'll Defiantely step up to a rear pro-tools bender in a few years, but I'm saving pennies for building a new house with a 1500 sq ft auto shop. Once I have that done, I'll get the new bender.


Here's my main hoop: 1-1/4" A500b structural tubing (1.66" OD, 0.140" wall)


Last edited by Haggar; December 6th, 2005 at 09:27 AM.
Haggar is offline   Reply With Quote
Old December 6th, 2005, 09:50 AM   #5
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

what is the strengh of the tube you used compared to DOM tube ? isnt there a seam in most pipes?
Chop is offline   Reply With Quote
Old December 6th, 2005, 10:22 AM   #6
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,647
iTrader: (55)
Mentioned: 1 Post(s)
Default

DOM is another term, like 'pipe' that is tossed around.

You'd need to specify a specific type of DOM tube with a ASTM standard to really get specifications. A lot can depend on the various processes..


Plain steel 1018 tubing is 50,000psi yield strength.
4130N chrome-moly is 63,100psi
4130T(tempered) is 110,000psi
4340N chrome moly is 114,000psi

Chrome moly requires preheating before welding.

Maybe the JCR guys will chime in, I'm sure they know more than I do.
Haggar is offline   Reply With Quote
Old December 6th, 2005, 02:05 PM   #7
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

Quote:
Originally Posted by Haggar
DOM is another term, like 'pipe' that is tossed around.

You'd need to specify a specific type of DOM tube with a ASTM standard to really get specifications. A lot can depend on the various processes..


Plain steel 1018 tubing is 50,000psi yield strength.
4130N chrome-moly is 63,100psi
4130T(tempered) is 110,000psi
4340N chrome moly is 114,000psi

Chrome moly requires preheating before welding.

Maybe the JCR guys will chime in, I'm sure they know more than I do.
yeah i know what you mean with all that.
Chop is offline   Reply With Quote
Old December 6th, 2005, 02:16 PM   #8
BMFmike
meh.
 
BMFmike's Avatar
 
Join Date: 11-06-05
Location: Grand Haven
Posts: 7,816
iTrader: (6)
Mentioned: 1 Post(s)
Default

Fill the pipe with sand, duct tape both sides, heat where you want to put the bend with a propane torch, bend around an object that wont move, WOOHOO, and you have some exhaust pipes:tonka:
BMFmike is offline   Reply With Quote
Old December 6th, 2005, 02:24 PM   #9
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

Quote:
Originally Posted by BMFmike
Fill the pipe with sand, duct tape both sides, heat where you want to put the bend with a propane torch, bend around an object that wont move, WOOHOO, and you have some exhaust pipes:tonka:
haha yeah
Chop is offline   Reply With Quote
Old December 6th, 2005, 02:35 PM   #10
BMFmike
meh.
 
BMFmike's Avatar
 
Join Date: 11-06-05
Location: Grand Haven
Posts: 7,816
iTrader: (6)
Mentioned: 1 Post(s)
Default

No joke I am going to try that for the pipes on my harley, I am going exhaust wrap them anyway so I will give it a shot.
BMFmike is offline   Reply With Quote
Old December 6th, 2005, 02:47 PM   #11
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,647
iTrader: (55)
Mentioned: 1 Post(s)
Default

I actually did an exhuast pipe on my poop-pipe bender.. I needed to just put a 10 - 15 degree bend in it. Worked ok, but any more than that woud crush the pipe. Just needed a little clearance.


I've been meaning to buy some play sand and pipe caps to see if sand makes any difference..
Haggar is offline   Reply With Quote
Old December 7th, 2005, 08:08 AM   #12
noodles
give 'er sh*t ay?
 
noodles's Avatar
 
Join Date: 11-07-05
Location: holland Mi
Posts: 1,029
iTrader: (0)
Mentioned: 0 Post(s)
Send a message via AIM to noodles Send a message via MSN to noodles Send a message via Yahoo to noodles
Default

i used the hf bender on my front bull bar, i tryed to do 90 and it kinked the pipe, i think i know how to fix it becasue of the design in the bender. I didnt really like it. I have used a differnent bender that I belive will go up to a 2 inch od this can make 90's good. i belive it was only like $100-200 but then you have to buy the dies. thats the expensive part.... I might try to make one, the hf is very simple design. but who knows.
noodles is offline   Reply With Quote
Old December 7th, 2005, 09:38 AM   #13
Medic8
You call, we haul.
 
Medic8's Avatar
 
Join Date: 11-08-05
Location: Southgate, MI
Posts: 1,492
iTrader: (4)
Mentioned: 0 Post(s)
Default

If you're interested in doing some serious bending, and would like to do 90 degree bends and beyond, you should look into the Model 3. Just do a google search for "Model 3 bender" and you'll find it. About 5 different companies all make their own version of the same thing. It runs $295 usually for JUST the bender. A handle, degree ring, stand, and dies are extra. Usually, you can find a combo deal with all of the above for around $895-950 depending on the die. 1.75 or 2" seems to be a good general all around die, if you're only planning on getting one. Otherwise, they usually cost another $300 or so each.
Medic8 is offline   Reply With Quote
Old December 7th, 2005, 10:09 AM   #14
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,647
iTrader: (55)
Mentioned: 1 Post(s)
Default

Yeah, thats what I'll be stepping up to in a few years.


I've seen some interesting ones homebuilt. I believe plans are out there for a model 3 type bender.

Saw some guys on the discovery channel with a total redneck homebuilt one. They had a 15ft piece of 2x2 steel tube with 3 guys pushing it as the lever to bend the tube. Guys were building souped up electric golf carts that'd go 60+ mph...
Haggar is offline   Reply With Quote
Old December 7th, 2005, 11:02 AM   #15
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

Quote:
Originally Posted by fastrt6dakota
If you're interested in doing some serious bending, and would like to do 90 degree bends and beyond, you should look into the Model 3. Just do a google search for "Model 3 bender" and you'll find it. About 5 different companies all make their own version of the same thing. It runs $295 usually for JUST the bender. A handle, degree ring, stand, and dies are extra. Usually, you can find a combo deal with all of the above for around $895-950 depending on the die. 1.75 or 2" seems to be a good general all around die, if you're only planning on getting one. Otherwise, they usually cost another $300 or so each.
good info thanks i will look into that more also
Chop is offline   Reply With Quote
Old December 11th, 2005, 03:52 PM   #16
Dirty Turtle
Senior Member
 
Dirty Turtle's Avatar
 
Join Date: 11-17-05
Location: Grand Blanc
Posts: 1,755
iTrader: (22)
Mentioned: 0 Post(s)
Default

HF also sells a bigger model that will do up to 2 1/2" . I think it runs about $150ish Search opn their website.
Dirty Turtle is offline   Reply With Quote
Old December 24th, 2005, 12:36 PM   #17
raelayotte
Newbie
 
Join Date: 12-24-05
Location: Manistique/ Michigan
Posts: 2
iTrader: (0)
Mentioned: 0 Post(s)
Send a message via Yahoo to raelayotte
Default hi

heres a good plan go with the hd plan http://www.gottrikes.com/
raelayotte is offline   Reply With Quote
Old December 24th, 2005, 01:24 PM   #18
Chop
Mischievous Badger
 
Chop's Avatar
 
Join Date: 11-05-05
Location: Fenton Mi
Posts: 5,834
iTrader: (31)
Mentioned: 3 Post(s)
Send a message via AIM to Chop
Default

Quote:
Originally Posted by raelayotte
heres a good plan go with the hd plan http://www.gottrikes.com/
thats a nice site good find i will probably order plans soon
Chop is offline   Reply With Quote
Old January 18th, 2006, 06:35 PM   #19
Dirty Turtle
Senior Member
 
Dirty Turtle's Avatar
 
Join Date: 11-17-05
Location: Grand Blanc
Posts: 1,755
iTrader: (22)
Mentioned: 0 Post(s)
Default

just an fyi....I bought the cheap harbor freight bender. I can easily get it to bend 90 degree angles (or more)

I learned a trick from a buddy. Get your size tubing, and use one size smaller die. Ive been bender 1.75" and 3/4" without any problems.

The only thing I have noticed, is you need to make sure the tubing stays the way you want it when you begin your bend. Smaller tubing seems to want to move itself around until it has some pressure on it, which caused some twisting, resulting in a U shaped bend being slightly distorted. A pair of vice gripswith the angle finder stuck on the end, until it was pretty tight seemed to fix the problm.

Ill post a couple pics of my bumper in this forum.
Dirty Turtle is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Fabrication and body armor

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:00 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.30657 seconds with 77 queries