The motorized vacuum-pneumostatic (frictionless sliding) precision rotating table is an instrument for concentricity and roundness checking. It’s made with precision lapped granite discs that move through a vacuum-air bearing support which ensures high stiffness, regardless to any value of load capacity provided. The top granite disc of the rotary stage, rotate thanks to an air bearing optimized for this application, that allows a total Runout of 0.1 microns. The lower disc support can move over the board where the rotary stage is placed, thanks to the pneumostatic air bearing. The standard motorization provided has an encoder with angular resolution of 0.017° while “high accuracy” version 0.00055°. This rotary stage is designed to integrate a wide range of precision motion applications. Typical applications are: monitoring concentricity, laser reverse engineering and optical metrology used as a reference axis. The TM is available with Ø 300 mm, like the model TR. Customer requirements for different sizes and drilling, are welcome.
The Rotary stage is supplied with a filter/air control and a pneumatic control unit.