Dunn manufactures tubes with outside diameters as small as 0.008 inches with 0.002 inch wall thicknesses, and with outside diameters as large as 0.480 inches. These are available in custom dimensions and configurations from a wide range of thermoplastics, including polyolefins, polyamides, thermoplastic polyurethanes, polyesters, polycarbonates and much more.

Dunn is a leader in the manufacture of acetal cores used for the manufacturing of minimally invasive catheter shafts. These cores are available in precise diameters from 0.020 to 0.250 inches with tolerances as low as +/- 0.0005 inches. Medical catheter manufacturers throughout the world use Dunn’s Catheter Cores to retain critical lumen tolerances during extrusion, braiding, coiling and jacketing processes. Low friction material properties and ultra-smooth surfaces allow these cores to be easily removed after catheter shaft assembly.

Interested in learning more?