Large size granite surface plates are manufactured in 5 accuracy grades according to ISO 8512-2 Standards, in black or Blue Lanhelin granite, in order to satisfy all specific user needs, both in workshop and in metrological room. All plates are tested in an environment with controlled temperature (20° C) and humidity. All MICROPLAN® plates are supplied with a Test Report, in which error map and installation instructions are reported. Calibration Certificate available on request*. The table hereunder shows standard sizes, weights, article codes and the absolute flatness tolerances (in micrometers). Microplan® can supply plates with different sizes according to customer needs and drawings, with holes, threaded inserts, guide or clamping T-slots, clearing grooves and special processing. Engraved serial number..
The second value indicated in the columns “Size” and “Weight” is for grade “00”.