seabo Posted February 8, 2008 Share Posted February 8, 2008 Currently trying to build back hoop for cage using 48.3mmOD blue band (3.5mm wall) using a hydraulic pipe bender Closest die is 50mm but causes too much deformation Have tried lining with thin plate - less deformaion but get small amount of rippling on inner radius. Have tried grinding out a smaller die - worst bend yet! Cannnot seem to source a die in the right size - closest being 50mm or 2" Any suggestions? Quote Link to comment Share on other sites More sharing options...
moose Posted February 8, 2008 Share Posted February 8, 2008 Currently trying to build back hoop for cage using 48.3mmOD blue band (3.5mm wall) using a hydraulic pipe benderClosest die is 50mm but causes too much deformation Have tried lining with thin plate - less deformaion but get small amount of rippling on inner radius. Have tried grinding out a smaller die - worst bend yet! Cannnot seem to source a die in the right size - closest being 50mm or 2" Any suggestions? have a watch of this.... not tried it yet so don't know if it works ... So do post back your results with pictures Quote Link to comment Share on other sites More sharing options...
ebo Posted February 8, 2008 Share Posted February 8, 2008 Currently trying to build back hoop for cage using 48.3mmOD blue band (3.5mm wall) using a hydraulic pipe benderClosest die is 50mm but causes too much deformation Have tried lining with thin plate - less deformaion but get small amount of rippling on inner radius. Have tried grinding out a smaller die - worst bend yet! Cannnot seem to source a die in the right size - closest being 50mm or 2" Any suggestions? I had this problem last year,bought 12 lenghts of blue band(bs1387) and it kept on kinking,so i hired a proper bender,still kinked. In the end the people who i got it from phoned their surplier and found out that some of the metal coming china at the moment has a high carbon content making it brittle.My surplier give me a full refund and i a bought a flat packed rollcage from malcom whitbead(highly recommended)instead. Ian Quote Link to comment Share on other sites More sharing options...
nickm Posted February 8, 2008 Share Posted February 8, 2008 I had this problem last year,bought 12 lenghts of blue band(bs1387) and it kept on kinking,so i hired a proper bender,still kinked.In the end the people who i got it from phoned their surplier and found out that some of the metal coming china at the moment has a high carbon content making it brittle.My surplier give me a full refund and i a bought a flat packed rollcage from malcom whitbead(highly recommended)instead. Ian when we had probs bending ours we found using loads of lube (wd40) on the rollers and die helped might be worth a try Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted February 8, 2008 Share Posted February 8, 2008 Hmmmm Clarke / Machine Mart bender ?? These have too tight a radius former for Bluie Band,....... it will do Red Band,........ but blue collapses. Luckily I have a modified Tubella Raduis former to fit You need a bigger radius former, .... or Red Band Nige Quote Link to comment Share on other sites More sharing options...
istruggle2gate11 Posted February 8, 2008 Share Posted February 8, 2008 or Red BandNige Forget the weight argument, its stronger, so much stronger and not that much more expensive, would your supplier to a trade up? Quote Link to comment Share on other sites More sharing options...
ebo Posted February 8, 2008 Share Posted February 8, 2008 when we had probs bending ours we found using loads of lube (wd40) on the rollers and die helped might be worth a try I tried that still didnt work,the tube was so hard it cracked the former on my bender(machine mart),at first i thought it was just the formers being carp quailty.So i hired a rothenberger bender,the tube still kinked,i then tried some scaffold tubing and it bent it perfectly with no marks whatso ever.After this i got the hump and ordered the flatpacked cage. Ian Quote Link to comment Share on other sites More sharing options...
Boothy Posted February 8, 2008 Share Posted February 8, 2008 I was told by my supplier (Booles at Stockport) that if you want to bend blue band only consider using Chorus British steel pipe because the foreign imported cheaper stuff stands a high chance of kinking, deorming, and therefore loads of wastage so ending upcosting more. We've made several full cages with a Clarke bender and Chorus steel and so far the only wastage was self inficted i.e. carp measuring. Tray backing mine next week and watch all me pipe kink and deform following this post. Quote Link to comment Share on other sites More sharing options...
landrover598 Posted February 8, 2008 Share Posted February 8, 2008 I've just bent up a full vehicle cage with Corus BS pipe (48x3), and a cheaper version of the clarke bender, with almost perfect bends. There is very minor defermation on the inside of 90 degree bends but not enough to be concerned. I used the 40mm die, as this is closet to the bore diameter. Ask your pipe supplier where it came from. Best of british, or cheap chinese ? Quote Link to comment Share on other sites More sharing options...
dirtydiesel Posted February 14, 2008 Share Posted February 14, 2008 The other advantage with corus steel is that it comes red primered allready, ideal if you hate painting stuff. I'd second the red band as well. Quote Link to comment Share on other sites More sharing options...
landmannnn Posted February 16, 2008 Share Posted February 16, 2008 I've just bent up a full vehicle cage with Corus BS pipe (48x3), and a cheaper version of the clarke bender, with almost perfect bends. There is very minor defermation on the inside of 90 degree bends but not enough to be concerned. I used the 40mm die, as this is closet to the bore diameter. Ask your pipe supplier where it came from. Best of british, or cheap chinese ? Are you doing a write up on your build? Quote Link to comment Share on other sites More sharing options...
landrover598 Posted February 16, 2008 Share Posted February 16, 2008 Are you doing a write up on your build? There's one over on ORRP, in the project section " A DiscoFairy is Reborn" Quote Link to comment Share on other sites More sharing options...
Guest mortus Posted February 18, 2008 Share Posted February 18, 2008 landrover598 i cant find your buildup, can you link me please you guys watched the youtube video... packing it with sand must really work, im so glad i watched that now. Quote Link to comment Share on other sites More sharing options...
landrover598 Posted February 18, 2008 Share Posted February 18, 2008 can you link me please Link Quote Link to comment Share on other sites More sharing options...
white90 Posted February 19, 2008 Share Posted February 19, 2008 My cage is Red band BS1387 heavy, no deformation on any of the tubes and so far proved strong Quote Link to comment Share on other sites More sharing options...
Guest WALFY Posted February 19, 2008 Share Posted February 19, 2008 landrover598 i cant find your buildup, can you link me please you guys watched the youtube video... packing it with sand must really work, im so glad i watched that now. When my cage was modified I took it to the Blacksmith Instr at the local camp to me. They pinched 1 end with the power hammer to seal it up then poured sand in. Used a wooden plug to seal the other end. Applied a small bit of heat with the oxy and then put it through the bender. Worked a treat. Then welded a small radius of 5mm plate on the inside to futher strenghten. Only prob is that I then reversed into a small tree and bent the rear X member and thE cage with it. So now have to get a new rear section made up. Will be going the same route as with regards to bending Quote Link to comment Share on other sites More sharing options...
Orgasmic Farmer Posted February 19, 2008 Share Posted February 19, 2008 Hey Dave just checked out your build on ORRP. Respect buddy. Thats coming along nicely....... Quote Link to comment Share on other sites More sharing options...
landrover598 Posted February 19, 2008 Share Posted February 19, 2008 Cheers Mark, getting there slowly, weather's not been helping much Quote Link to comment Share on other sites More sharing options...
plasticbadger Posted February 24, 2008 Share Posted February 24, 2008 Note Corus recomend a minimum bend of 5D (5 x tube outside dimeter) on blue band steel, or 3D on red band. All cheapo benders work on 3D so you should go for red band or go with a techinic like that in the utube video. Also due to the heating involved you should avoid bending galvanised tube at all. Corus supply Red Band in natural finish, galvanised, or primed in red or black. Best size for cages is 40mm NB (nominal bore) which measures 48mm OD with a 4mm wall. A little heavy, yes, but easy to bend and weld. Quote Link to comment Share on other sites More sharing options...
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