The precision rotating table, instrument for concentricity and roundness testing, is composed of granite disks moving on a pressure/vacuum air bearings in a way to obtain the maximum rigidity even changing loads for testing.

The bottom disk of the rotary table can translate on the base while the upper disk rotates round the vertical axis, all thanks to the air bearing system. The instrument comes supplied with a compressed-air filtering/regulation unit and controlling device. Other sizes and inserts grid on request.