In many instances the need for high specimen throughput and precision for
grinding and polishing can create a bottleneck that is difficult to correct.
In addition, some analytical techniques may be very sensitive to cross
contamination from the lapping fixture. The Model 181 Rail PolisherT is
designed to grind and polish multiple specimens with precise control over
each individual specimen with only the specimen coming in contact with the
abrasive material. The fixture incorporates up to 3 separate pistons which
are used for holding the specimen during preparation and controlling the
amount of material to be removed. The piston assemblies allow for specimens
of up to 1" diameter to be polished in 10- micron increments. The specimen
mounts also provide a means for viewing the specimen in transmitted light,
enhancing detection of features that require a light transparent specimen.