SANDY, UT—Spectrum Plastics Group doubled the size of its manufacturing facility for vascular technology here to 100,000 square feet as part of an expansion expected to create 100 jobs.

Fastening and pressing equipment have been used to assemble medical devices for decades, and that's not likely to change anytime soon.

There are many ways to run a custom machine building business. Some systems integrators are dedicated to a particular industry, such as auto parts manufacturing. Others specialize in a particular kind of assembly machine, such as high-speed continuous motion systems.

Engineers have many options for joining identical or similar materials. To join, say, a steel part to another steel part, engineers can use screws, rivets, welds, adhesives, clinches or press-fits.

Over its 30-year history, Bovie Medical Corp. has gone from making disposable penlights to becoming the largest manu-facturer of battery-operated cauteries in the world. The company manufactures products for some of the largest medical OEMs in the United States.