Medical molding business contributes to healthy growth at Diversified Plastics

When you’re working with medical device OEMs, patience isn’t just a virtue, it’s a core job requirement. “There is a long cycle, from doing the early prototype to working your way into the bioburden part, design validation and regulatory approvals—things don’t turn quickly,” said Joni Davis, Sales Engineer at custom molder Diversified Plastics (Minneapolis). But that patience is amply rewarded, she added, because once you’re in, you’re there for the long haul. “You won’t see the fruits of your labor right away, but you will eventually get there.”

PlasticsToday caught up with Davis at the Diversified Plastics booth at Advanced Design & Manufacturing (ADM) Expo in Cleveland earlier this month. We asked her about some recent developments at the employee-owned company, notably the addition of an environmentally controlled molding and packaging area, as reported by PlasticsToday last month.

Diversified Plastics environmentally controlled area
Diversified Plastics has added an environmentally controlled molding and packaging area at its facility in Minneapolis.

“Our customers in the medical, filtration, aerospace and some other sectors were requesting molding conditions that limited exposure to particulates,” explained Davis. One application in particular—a breathing device—did not require a full-on cleanroom, just a cleaner production environment, said Davis, and that prompted the installation of what is commonly called a white room. Positive air pressure limits the presence of particulates, but the white room does not have the bells and whistles of a proper cleanroom, nor does it have the price tag, which can be substantial. This solution was a perfect fit for the customer, said Davis.

Diversified maintains cleanrooms on site for customers who need more stringent levels of particulate control, including an ISO Class 8 cleanroom that was added in 2009. “We make a lot of parts that go into finished devices,” said Davis. They can be molded in the white room and then “brought into the cleanroom to be wiped down, assembled and packaged.”

Contract manufacturing for medical device OEMs was a big driver for the recent expansion, explained Davis. The 2,775-square-foot area houses two vertical presses and a “very large press with a robotic arm for the breathing apparatus. We just brought in another 250-ton press, also with a robotic arm, as we start to do higher volumes with some of our medical customers,” said Davis. 

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