Tube Bender Die and Tooling Guide

Direct answer: Tube bender tooling should be selected from the buyer’s real tube size, wall thickness, material, bend radius, bend angle, part geometry, mandrel needs, surface finish expectation, and production volume. Tooling is often as important as the machine itself.

Tooling items to review

• Bend die: selected by tube OD and centerline radius.
• Clamp die: holds the tube during bend and affects grip and repeatability.
• Pressure die: supports the tube during bending and affects finish and stability.
• Mandrel: supports inside of tube for tighter radius or thin-wall bending.
• Wiper die: helps control wrinkles in more demanding bends.
• Lubrication and setup process: important for quality, tooling life, and repeatability.

Buyer warning

A CNC tube bender can still produce poor bends if tooling is wrong. Review tooling package, tube geometry, mandrel needs, bend radius, and operator training before purchase.

RFQ checklist

• Tube OD, wall thickness, material, bend radius, bend angle, and number of bends.
• Part drawings/photos, finish expectations, wrinkle/flattening tolerance, and production volume.
• Existing tooling, if any, and whether new tooling must be quoted.

Useful links

Tube bender buyer guide · Mandrel vs non-mandrel · Quote checklist · Application guide · Request quote

Request tooling review: Send tube OD, wall thickness, material, bend radius, part drawing/photo, and required finish.