pipe bender and advice needed

[mikesmith181]

Hi all, i'm looking for a 63mm pipe bender, are these available as hand operated unit or are they just the huge hydraulic type that big companies use?
Thanks in advance

[scooby-KILLER]

Hi all, i'm looking for a 63mm pipe bender, are these available as hand operated unit or are they just the huge hydraulic type that big companies use?
Thanks in advance

have you done a search online to see whats available? might give you an idea of what is and price range if there are any manual one's available

[mikesmith181]

i have done a google search and loads of video's of people using them cam up lol among other crap like 22mm ones lol

[Frisco]

What type of pipe is it?
You can get hand pumped hydraulic ones for heavy gauge stuff like a roll cage but they wont do exhausts

[scooby-KILLER]

What type of pipe is it?
You can get hand pumped hydraulic ones for heavy gauge stuff like a roll cage but they wont do exhausts

i take it thats because the material is thinner with the exhausts?

[Frisco]

Yeah it would just crease

[MSG]

An old trick was to use dry building sand packed in a steel pipe, to make an obsolete exaust pipe radius, the sand is packed tightly into a large steel pipe and heated red hot with a gas torch, and then gradually forced to allow it to bend to the required shape and radius, while both ends of the pipe are sealed to stop the sand from escaping, sand must be totally dry, requires a lot of patient, the sand allows an even diameter across the bend. It acts like a spiral spring often used in bending 15mm or 22mm copper pipes used in domestic plumbing.

Is you looking to bend just a one or two pipes or are you looking to bend pipes on a commercial bases? If you managed to get a proper pipe bending machine for your 63mm diameter steel pipes, I am sure the cost of such equipment will be prohibitively high.

Other methods used are welding sections of pipes which are cut in small segments and welded together (trapzoid shaped pieces to form a right angle bend might require two or more such pieces cut and welded together.)

[Gordo]

Not totally sealed, as otherwise you're likely to have the increased internal pressure from the heated air (and steam if not totally dry) will try and 'balloon' the pipe out where it's hottest.
For cold bending, you can also get internal springs that are inserted before bending, to prevent collapse/crushing, and that can just be pulled out afterwards.
There's also a metal with low melting point, <100C IIRC, that can be used to fill the pipe where the bend it to be done, that can then be poured out with gentle heating of the pipe and re-used.

For an exhaust, I just buy mandrel bent bends and cut to suit requirements, tack in place as exhaust run plotted before final welding. For fine aligning, I just make a few fine cuts most of the way through the pipe and bend to suit, tack and weld.

[mikesmith181]

What type of pipe is it?
You can get hand pumped hydraulic ones for heavy gauge stuff like a roll cage but they wont do exhausts

its only normal steel buddy, i think 1.5mm. any idea where there available from and a rough price?

[Matthew H]

you can rent them from HSS last time I checked.

[NovaRick]

i have got a hydrolic bender, it goes up to 2.5 inch i think, cant remember havent used it for ages. it wont bend 1.5mm wall tho. its too thin, as a post said earlier it will only do thick guage steel, rollcage, scaffold etc...

[Novasportowner]

The best way as mentioned in a previous post, is to use a mandrel bender, it will cost a fortune to buy, so unless you are planning to start a profitable business, I wouldn't bother.
Hydraulic benders, like the cheap ones you can buy for about £150, personally I think they are sh**, been there, done that with CDS roll cage material, it just collapsed.
What are you trying to make?

[DarrenH]

surely the hand pumped would still work with mandrels and formers ? the pipe doesnt know how the force is being produced.

[Frisco]

The cheap ones like one below dont have mandrels. They are for bending schedule GB pipe which doesn't really need one. I dont think sand packing exhaust would give it enough support to stop it collapsing in one of these either

[NovaRick]

Mine is similar to that only alot more heavy duty. sand packing it wont work i have tried.