The MTD Micro-Molding, a provider of micro injection molding for the medical device industry, has made a significant investment to expand their overmolding services. As part of this investment, they recently acquired a new vertical injection molding machine, which has been designed and further customized for higher capacity overmolding.
 
Overmolding involves two or more materials molded together to become one part, such as molding two plastics together or molding plastic around a metal insert. Because overmolding requires no foreign materials like adhesives, it’s possible to achieve greater part functionality that’s critical to medical devices, like creating a water-resistant seal.
 
Gary Hulecki, executive vice president at MTD, said the investment is in response to a growing need for precision overmolding from their customer base. OEMs benefit from precision overmolding by improving shot-to-shot consistency and overall part quality for their medical device components.
 
Common medical overmolding components that MTD has produced include catheter tips, suturing devices, sports medicine implants, and orthopedic devices where a PEEK polymer is molded over or through metal. A more unusual project was a five-piece micro assembly device overmolded with glass-filled LCP (liquid crystal polymer).
 
MTD Micro Molding is a vertically integrated micro-molder with all tooling services located in-house. It currently has 13 molding presses and 31 employees.
 
Learn more about MTD’s overmolding capabilities here.