MFG Manufacturer Directory

Find the right manufacturer for your custom parts.


Hopkinton, Massachusetts



Demanding power conversion applications deserve a manufacturer with decades of expertise in the design and production of dependable and rugged power solutions.

Schaefer's in-depth understanding of the customer's overall application leads to a solution that will best fit the customers requirements. From proof of concept, through prototype development and final design deployment, Schaefer provides technical experience and attention to detail at every step of the way.

Schaefer specializes in solutions for on-board and trackside heavy and light rail applications. Our unique design and manufacturing allows flexibility in power conversion for an endless combination of input and output voltages. Extra rugged construction ensures long-life, reliable operation in even the most demanding applications, including on-board electronics, as well as other transit vehicles, mining vehicles, and switches.

MFG is Where Manufacturing Gets Done

100,000+ Manufacturers

Reviewed and Verified

26 Distinct Marketplaces

Aligned To Your Needs

~1,000,000 RFQs

Manufacturing RFQ Marketplace

Ready to jump in? Join Free Now