Electric pipe benders

[theSouth]

in principle, what's the difference between the link I gave above and, say, this tool (Apart from the smaller diameter limit for the below tool):

http://www.tradecounterdirect.com/product/rothenberger-hand-bender_-1-4in-5-16in-3-8in-1-2in.html?

They appear to use the same approach to bending.

Basically, what ill effect will the hydraulic tool have on copper that the above tool won't?

Malformed outside edge etc?

 

[PullerGas]

in principle, what's the difference between the link I gave above and, say, this tool (Apart from the smaller diameter limit for the below tool):

http://www.tradecounterdirect.com/product/rothenberger-hand-bender_-1-4in-5-16in-3-8in-1-2in.html?

They appear to use the same approach to bending.

Basically, what ill effect will the hydraulic tool have on copper that the above tool won't?

Malformed outside edge etc?

The bender above mate is for soft copper tube. As others have stated, for half hard Table X tube you need both a Former & Guide to bend it. Also, most hydraulic benders don't have a Guide only a Former & two pipe Stops.
HTH

 

[theSouth]

Cheers. I've arranged for it to be sent back (I.e. I can refuse delivery with seller's blessing)

Seller had to accept this as before I ordered I specifically asked if this was suitable for 28mm copper.

You've saved me some money (and some embarrassment )

Cheers again.

 

[PullerGas]

For 28mm you could always buy this
http://www.ebay.co.uk/itm/15-22-28m...-BY-BENDITNOW-Hilmor-compatible-/131599703568

Or keep an eye out for a second hand one on EBay or Gumtree etc.

 

[theSouth]

Yeah I've seen those. I was trying to keep it sub £200 as I'm not going to be using it every day.

Any idea of the dimensions of, say, a 90 degree bend in 28mm?

I suppose I'm wondering in what situations I'll be able to use it. Of course I'll use it for offsets too, that's actually mostly what I need.

I assume a 90 bend in 28mm needs a fair amount of actual space, so realistically not that useful in many circumstances?

Cheers

 

[PullerGas]

Yeah I've seen those. I was trying to keep it sub £200 as I'm not going to be using it every day.

Any idea of the dimensions of, say, a 90 degree bend in 28mm?

I suppose I'm wondering in what situations I'll be able to use it. Of course I'll use it for offsets too, that's actually mostly what I need.

I assume a 90 bend in 28mm needs a fair amount of actual space, so realistically not that useful in many circumstances?

Cheers

If it's for very limited use, have you considered buying a 28mm Spring, annealing the tube & bending it that way?

 

[theSouth]

Yeah I've got a spring. I'll try the annealing and bending, I've seen a few suggested that elsewhere

I've only got a spring and a length of copper to lose if I can't get the spring out again

 

[PullerGas]

Get 400-500mm of copper tube cherry red, then quickly pour water over it, then bend over your knee. There's got to be videos on Utube surely??