Intricate Assemblies
MPR provides a full-service secondary department where we perform value-added operations to the parts we mold. We excel at intricate assemblies requiring secondary operations such as machining, fastening and sonic welding. We maintain a complete line of plastic machining equipment to perform drilling, tapping, turning, broaching and routing. In addition to insert molding, we also maintain three sonic welding stations, a riveting machine and a pneumatic press for assembly and insert work. Our customers benefit from our skilled labor force and attractive cost structure!
MPR molds and assembles peristaltic pumps for GE.
MPR Plastics manufactured 100% of the plastic components on these very high precision medical pumps.
The valve stroke on a precision assembly is held to +/- .001”. An internal component has flatness held to .002” across surfaces with diameters 1.050” and .720”. An automatic unscrewing core forms extremely fine 40 threads per inch on a 1.216”I.D. in the outer component.
This precision assembly requires a pointer-indicator to be held to +/- 3 degrees, the concentricity in a molded polycarbonate lens to be held to +/- .002", and a hermetic seal of the assembly through sonic welding.
