One Day Service
Chrome and Ampco Bronze mandrels in 46 sizes (.375"
O.D. to 3.0"
O.D.) are shipped in 24 hours or less.
Basic Mandrels and
Tube bending has come a long way since wet-packed sand cerrobend or cable
mandrels. In addition to the basic mandrels described below, TFB has designed
these and many other specialty hybrid materials: hydroforming, wave guide,
tube-within-a-tube, bend-on-a-bend, sizing, bullet-nosed, plastic, and
Among the many
factors which influence the type of mandrel selection and number of balls,
these are the most important considerations:
"D" of Bend (center line radius ๗ tube O.D.)
Wall Factor (tube O.D. ๗ wall)
Ovality and wall thinning requirements
Size and location of weld flash
We provide a
selection of mandrels for any conceivable requirement. We also furnish the "H"
style universal flexing, link mandrels. Our single-plane "Brute" mandrel has
superior strength and straight ball alignment; ideal for high production or
larger tubes. Mandrels are available for literally any size of tube/pipe, as
well as any square, rectangle, or shape. All mandrels are available in standard
pitch, close pitch, or for extremely thin wall tubes, the ultra-close pitch
configuration. Mandrel materials are Ampco bronze or tool steel. Steel mandrels
can be hard-chrome plated, Kro-Lonฎ plated, or titanium nitrided.