An advanced extrusion line producing radiopaque FEP medical tubing will be showcased at the forthcoming co-located Medical Design & Manufacturing (MD&M) West and PLASTEC West event. Extrusion technology company Davis-Standard (Pawcatuck, CT) has teamed up with Conair, Zumbach and Guill Tool and Engineering to demonstrate what it calls a best-in-class technology to meet the functional and versatile tubing needs of the medical industry. Daikin and PolyOne Colorant Chromatics are supplying resins for the demo, which will take place at booth 3839.
The co-extrusion line, which will be processing FEP medical tubing with three barium sulfite stripes, will be equipped with two of Davis-Standard’s MEDD (Medical Extruder Direct Drive) extruders along with Conair MedLine upstream and downstream equipment, Zumbach gauging, and die tooling provided by Guill.
“The tubing at the show will feature three stripes and will represent the latest technology required for processing barium sulfite products,” said Jason Baird, PhD, Senior Process Engineer at Davis-Standard. “One of the greatest advantages of this line is that it gives the processor the option to lay the stripes on the outside of the tubing or embed them within the tubing wall. Every component is engineered for tight tolerances, high quality and output efficiency,” he added.
Specific to Davis-Standard, the MEDD extruders will demonstrate the value of an extruder designed specifically for medical environments. The MEDD enables processors to easily swap barrels and feed-section liners to change extruder diameters and lengths while keeping alignment intact, providing versatility in cleanroom settings where space is limited. The extruder’s direct drive design eliminates the need for gear-case oils and belts that create particulates. The machine is mounted on linear rails to allow seamless adjustments with or without a melt pump. At MD&M West and PLASTEC West, both extruders will have 3⁄4-inch (19-mm) diameter barrels with L/D ratios of 24:1 and 16:1. In order to limit exposure of the radiopaque barium sulfate filler to the high temperatures of fluoropolymer processing, a shorter 16:1 extruder along with a special screw design will be used. All components of the tubing line will be monitored and controlled by Davis-Standard’s eVUE control system.
“This line represents an all-encompassing package in both design and processing technology,” said Kevin Dipollino, Product Manager, Pipe, Profile and Tubing. “It shows the value of complementary components among reputable industry partners in creating an end-to-end solution that addresses a growing segment within the medical tubing marketplace.”
MD&M West and PLASTEC West return to the Anaheim Convention Center on Feb. 5 to 7, 2019, in Anaheim, CA. Go to the PLASTEC West website for further information and to register to attend.