Custom bent tube parts, finished in one order.

The working rule is a centerline radius (CLR) of at least 2× the tube diameter — tighter is possible with a mandrel and the right wall thickness, but it costs more and not every material survives it. Your bend is checked against the actual die library at quoting, so the radius on the quote is one a real die can form.

The number of bends, the length of the part, the tube size and wall, the material and the quantity. Laser-cut features, welding and finishing add to the price per part, and one radius for every bend keeps the tooling and the setup, and so the cost, down.

The bend angle is held to ±0.5°, with springback compensated per material and batch on the CNC bender. Any other tolerance on the drawing is confirmed against the bender at quoting.

With tooling, not luck: an internal mandrel supports the bore through the bend and a wiper die backs up the inside wall where wrinkles start. Whether they’re needed depends on the ratio of diameter to wall thickness and how tight the radius is: we specify them when the geometry calls for it, and price them in.

Yes — square and rectangular sections bend on the same rotary-draw benders with section-specific dies to control twist and keep the faces flat. The practical size range is smaller than for round tube, and tight radii are harder on the outer face, so square-tube bends get checked against the die library case by case.

Not reliably at tight radii — the T6 temper cracks on the outside of the bend. The standard moves are a larger CLR, a softer temper bent then aged, or switching the part to 6060/6063, which bend cleanly. We flag this at quoting rather than letting it fail on the first article.

Yes. Cut to length, holes, notches, end-forming, welding to other members and finishing (powder coat, polish) are specified against the same drawing and priced in the same order. A bent tube that needs laser-cut features or a welded bracket doesn’t become a second vendor’s problem.

A STEP file of the part plus a 2D PDF drawing with the tube size and wall, the material, the bend radii and the quantity. We extract the bender’s data — bend angles, rotations and straight lengths — from your STEP geometry, so you don’t need to supply a bend table.

A price per part comes back within 24–48 hours of uploading your STEP file and 2D PDF drawing, with the lead time of each part.

There's no fixed minimum — price is what naturally limits a very small order, not a policy. One bent handle is quoted the same way a batch of a thousand frame members is.