CNC Tube Bending and Radius Rolling
CAD-driven CNC tube bending and radius rolling — tight-radius bends, sweeping rolls and clocked multi-plane geometries, repeatable across every reorder.
Tube bending design limits
| Bend radius | Model to the published CLR chart |
| Between bends or rolls | Minimum 4 in |
| Straight before and after a bend | Minimum 3 in |
| Features near a bend | Keep at least 0.75 in clear |
| Distance from a coped end to a bend | Minimum 3 in |
| CAD formats accepted | Parasolid (.x_t), STEP, IGES |
CNC tube bending and radius rolling are driven directly from your CAD file, which keeps setup time down and makes results repeatable across reorders. Send a model in Parasolid, STEP or IGES and we generate the bend and roll instructions from it.
Tight-radius bends, large sweeping rolls and multi-plane clocked geometries all run on the same workflow. The one thing that decides whether a part can be built as drawn is the centerline radius — model to the CLR values we actually tool for, published in full on our chart, and the part comes off the machine matching the model.
Common questions
What bend radius should I design to?
Model to the exact centerline radius (CLR) we tool for. Our published CLR chart lists the standard and non-standard radii available for each tube size. Designing to a radius we do not have means the part cannot be bent as drawn.
How much straight tube do you need between bends?
Leave at least 4 inches between bends or rolls, and a minimum of 3 inches of straight tube before and after a bend. Closer spacing risks the clamp die marking the tube or disturbing the previous bend.
Can I put holes or features in a bend?
No. Holes, keys and markings inside a bend cause the tube to deform or crack. Keep features at least 0.75 inch away from the tangent point of the bend.
Before you send a file
- Official bend radius chart (CLR)
- Tube bending design rules
- Tube laser cutting
- Tubing in SolidWorks video course
Get a quote on cnc tube bending
Check the CLR chart before you model, then send the file.
Request a quote →Terms and Conditions
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Contact Info:
(909) 351-0081
13815 Arrow Rte
Fontana, CA 92335
sales@calwestmfg.com