Tube and pipe basics: How to achieve the perfect bendExplore further
2014-2-24u2002·u2002The rolls move to produce specific, usually very large radii. Which rolls move where depends on the machine. On some, the top roll moves up and down to produce the desired angle; on others, the two bottom rolls move and the top roll remains stationary (see Figure 5). Another machine type is the two-roll, pinch-style roll bender.
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