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Black Forest
11-24-2014, 12:35 PM
I have a hydraulic pipe bender but it won't do a small radius. Nothing under a 3" radius. So for a long time I have wanted to build a Hossfeld style bender. I am building a lot of panels for my sheep and I needed to make some u's out of 30mm x 3mm flat stock. I did a couple in the vise and said to self, "now would be a good time to build a bender." So I did.

It will accept 50mm(2") wide material. I will build dies as I need them. For now I am using the square block as a backing. All the pins and bolts are 16mm. It attaches to my welding table with just one of the special hold down bolts for my welding table. If you look in front of the square block you will see a couple of unused holes. Those are my Oupps holes. They are in the wrong place. I will weld them shut later. The pins I knurled on the top to make it easier to pull them out. They are stainless. You can see in the picture where the square block sits on a circular spacer so it is high enough to fit between the top and bottom plates of the bending arm. For different size bends I can turn the block and put a sleeve over the pivot pin of the diameter I need for the bend. There is a roller on the bending arm pin. It is a piece of hydraulic rod so is chromed on the outside and hard. Should last a while. All the sleeves and holes were reamed to 16.1mm. I think I will open up the holes a little more. The pins are just a bit too tight for my liking. In former times I would have just drilled with the next size drill and been done but you all make me work to closer tolerances than my normal farmer tolerances! The frame is made from 50mm x 10mm flat steel. The base is 12mm thick. I don't need this to bend 2" inch pipe, I have the hydraulic bender for the heavy stuff. This is just for the light material.

http://i853.photobucket.com/albums/ab91/burnandreturn/WP_20141124_002copy_zpsb1d3ebfa.jpg (http://s853.photobucket.com/user/burnandreturn/media/WP_20141124_002copy_zpsb1d3ebfa.jpg.html)
http://i853.photobucket.com/albums/ab91/burnandreturn/WP_20141124_004copy_zpsde542aa2.jpg (http://s853.photobucket.com/user/burnandreturn/media/WP_20141124_004copy_zpsde542aa2.jpg.html)

Black Forest
11-24-2014, 03:15 PM
I made a short video to show how this bender works.
http://youtu.be/DdEllhqcPRU

EddyCurr
11-24-2014, 03:35 PM
Well done. Adapting it to work with the table gets around
what for me is the drawback of having to anchor a pedestal
to the floor. I like the multi-shape shoe.

An enhancement could be the addition of an infeed stop.
Another might be something to indicate degrees of bend
rotation. Both could be useful for batches.

Did I mention that I like that table.

.

Black Forest
11-24-2014, 03:41 PM
Well done. Adapting it to work with the table gets around
what for me is the drawback of having to anchor a pedestal
to the floor. I like the multi-shape shoe.

An enhancement could be the addition of an infeed stop.
Another might be something to indicate degrees of bend
rotation. Both could be useful for batches.

Did I mention that I like that table.

.

Actually you did but mention it again. I like to hear it!

Yes I will make a scaled ring and some form of stop but I only made it this afternoon so cut me a little slack!

flylo
11-24-2014, 03:45 PM
Nice work!

EddyCurr
11-24-2014, 03:53 PM
Actually you did but mention it again. I like to hear it!

Yes I will make a scaled ring and some form of stop but I only made
it this afternoon so cut me a little slack!I like that table. (I will search, I am certain it must have
been discussed before.)

No pressure about the enhancements from me. Actually, It is
probably the case that an experienced operator will be more
productive, not to mention plenty accurate working without
those.

.

Black Forest
11-24-2014, 04:01 PM
The table is made by Siegmund here in Germany. It is such a time saver when it comes to building anything.

Axkiker
11-24-2014, 07:34 PM
I like that bender... but the table is bad A$$ must weigh a ton..

On another note anyone built a tubing bender like this? Seems like it could be adapted pretty easily if you could make the dies.

Black Forest
11-25-2014, 04:30 AM
;)
I like that bender... but the table is bad A$$ must weigh a ton..

On another note anyone built a tubing bender like this? Seems like it could be adapted pretty easily if you could make the dies.

No it only weighs 850kg!;)

Lew Hartswick
11-25-2014, 08:14 AM
No it only weighs 850kg!
There need to be a smiley after that . :-)
...lew...

Black Forest
11-25-2014, 08:28 AM
There need to be a smiley after that . :-)
...lew...

Lew what are you drinking? There is a smiley at the end!

Lew Hartswick
11-25-2014, 08:40 AM
Sorry. I don't see those picture things. I only read text on bulletin boards.
...lew...