Custom OEM motion assemblies are our specialty. We have the knowledge, experience, tools, and flexibility to offer application specific assemblies comprised of standard products or completely unique designs. To reduce the lead time and costs to design and test new product designs we use SolidWorks 2011 3D CAD software with Simulation Professional. LEARN MORE...


Besides good engineering, consistent product quality is the result of skilled and experienced technicians, use of quality components, and disciplined documentation control. Most of our assembly and test technicians have well over a decade of experience in building motion platforms. LEARN MORE...


For performance validation we have invested in several metrology tools, including AA grade granite plates, parallels, and squares, precision electronic indicators, and laser interferometers and optics. LEARN MORE...


Besides supporting our own products we can repair or rebuild many stages manufactured by other vendors, especially stages manufactured by Newport-MN. Please contact us to discuss your specific needs.


Welcome to our website. Hopefully it will give you good overview of our capabilities and our products, and also let you see examples of precision motion assemblies we are currently manufacturing for our OEM customers.

While RSI is a relatively young company, most of us have been involved in the design, manufacture, sales, and support of precision motion hardware for 15 years or more.  Because of our size, we can be very flexible and are able to provide customized solutions in relatively low volumes.

Please take a moment to look at our website.  If you are interested in additional information, or if you have an application you would like to discuss, please contact us.


    Recent News

  • LP300E Introduction
    LP300E Stage Reliant Systems has begun deliveries of the new LP300E, a low profile XY stage with 300mm x 300mm travel. The LP300E, a redesign of the LP300, now offers linear encoder feedback as a standard feature for improved bidirectional repeatability and linear accuracy. Rigidity of the stage body has also been improved resulting in lower pitch errors and improved vertical straightness. Like the LP300, the LP300E uses motors with integral controllers and drivers for lower cost and simplified integration.
    Lean More about the LP300E Stage