Announcement

Collapse
No announcement yet.

Anyone recognize this 3 roll bender?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Anyone recognize this 3 roll bender?

    Click image for larger version

Name:	image_15115.jpg
Views:	426
Size:	4.39 MB
ID:	1923389

    Scrapyard find, with the sprocket it must have been powered at one time.
    18" rolls, weighs about 125lbs.
    Kinda has an 'asian' vibe to it, but I haven't even checked to see if the fasteners are metric.



  • #2
    Probably home made, seen a bronx I think that was the same size, very old
    mark

    Comment


    • #3
      Don't think homemade. The sliding upper roller brackets appear to be cast, of cast iron or cast steel.

      Rollers are exactly 2" and 3" with 3/8-16NC, grade 8 fasteners... maybe it isn't asian.
      The driven roller is knurled.

      Haven't found anything close surfing the web.
      Last edited by cijuanni; 01-22-2021, 08:26 PM.

      Comment


      • #4
        For flattening coil stock inline with a stamping operation perhaps?

        Comment


        • #5
          Looks like it is to make sheet steel into a curved form, or straighten curved or rolled raw materials before cutting etc. . Maybe designed for a specific size of sheet material. Here is a photo of a larger one but the concept is the same. Tightening the adjusters gives a tighter curve etc.
          Attached Files
          S E Michigan

          Comment


          • #6
            Originally posted by OaklandGB View Post
            Looks like it is to make sheet steel into a curved form, or straighten curved or rolled raw materials before cutting etc. . Maybe designed for a specific size of sheet material. Here is a photo of a larger one but the concept is the same. Tightening the adjusters gives a tighter curve etc.
            Yep that is the idea.
            Didn't think of that it might have been for straightening coil stock, which might explain the width, and why they way it is currently set up you can't roll a complete circle.....cuz they didn't need to.

            That scrapyard gets a fair amount of coil stock, so that is a good possibility.

            Comment


            • #7
              Why can't you roll a full circle? Should be able to just fine, that's a pyramidal roller.

              Comment


              • #8
                Originally posted by eKretz View Post
                Why can't you roll a full circle? Should be able to just fine, that's a pyramidal roller.
                Because you can't get the full rolled circle off the top roller w/o disassembly.
                The machines set up for have a quick release/hydraulic/slotted bearing support that pivots off to allow sliding the circle off.

                Comment


                • #9
                  You can still do a full circle as long as the material is compliant enough to flex enough to come off the rollers. That roller is certainly not made stout enough to run ΒΌ" plate...

                  Comment


                  • #10
                    Doesn't really matter who made it - they're so simple that no maker data is needed to repair & parts would be generic or easily substituted. Unless knowing is just for your curiosity.

                    Comment


                    • #11
                      Originally posted by Bob Engelhardt View Post
                      Doesn't really matter who made it - they're so simple that no maker data is needed to repair & parts would be generic or easily substituted. Unless knowing is just for your curiosity.
                      What thickness and width is it rated for?

                      Comment


                      • #12
                        Originally posted by eKretz View Post
                        You can still do a full circle as long as ......
                        And if it isn't as long as, you can't roll a full circle w/o disassembly.

                        I suspect everyone here knows that steel is elastic and has an elastic limit, but thanks for participating.
                        Last edited by cijuanni; 01-23-2021, 04:43 PM.

                        Comment


                        • #13
                          Yeah that's kind of the point... You CAN roll a full circle. It's unlikely that you'll roll anything thick enough that you can't just flex it open to remove it. But thanks for participating... And way to be an insulting jerk.

                          Comment


                          • #14
                            You can roll a circle , I'd you can remove it.
                            but good luck welding said circle , grinding it, then trying to 're roll it round..
                            width.? Do you have a tape..?

                            Comment


                            • #15
                              Originally posted by 754 View Post
                              You can roll a circle , I'd you can remove it.
                              but good luck welding said circle , grinding it, then trying to 're roll it round..
                              width.? Do you have a tape..?
                              I am not sure what that gibberish means, but the width of the rollers was given in the 1st post.
                              With any of these types of machines, brakes, shears, rollers the capacity is given in the width and thickness of material (usually mild steel) that it can handle w/o breaking, deforming or poor results.

                              That is why I asked if anyone recognized it.
                              It wasn't to find parts.
                              It wasn't to discover Young's Modulus of Elasticity.

                              So back to the question.
                              Anyone recognize this 3 roll bender?


                              Comment

                              Working...
                              X
                              😀
                              🥰
                              🤢
                              😎
                              😡
                              👍
                              👎