These are prototypes for a vacuum pick-up tube system in a food processing plant. Recently we bent 8 pieces of 304 seamless stainless steel tubing 1.5 OD x 0.083 wall (14 ga) to a 5.25in inside radius with 81 degrees of arc and with 6in tangents on each end. When the desired radius is very tight, seamless usually bends better. If the bend has a large radius, the tubing can be curved with three-roll benders (also called section benders, profile benders, or angle rolls.) If the bend has a tight radius, the tubing can be bent on a rotary-draw bender through a process called mandrel tube bending.īoth welded and seamless tubing can be curved.
A variety of methods can be used for bending stainless steel tubing.
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