Renishaw`s QC20-W wireless ballbar offers you the perfect solution. It`s the quickest, easiest and most effective way to monitor machine tool condition. The heart of the system is the ballbar itself, a very high accuracy, telescoping linear sensor with precision balls at each end. In use the balls are kinematically located between precision magnetic cups, one attached to the machine table and the other to the machine spindle or spindle housing. This arrangement enables the ballbar to measure minute variations in radius as the machine follows a programmed circular path. The data collected is used to calculate overall measures of positioning accuracy (circularity, circular deviation) in accordance with international standards such as ISO 230-4 and ASME B5.54, or Renishaw`s own analysis reports. Data is displayed graphically as well as in numeric format to aid and support diagnosis. Supplied as a complete kit-in-a-case, the ballbar kit provides a powerful and portable solution – just add a PC and you`re ready to start testing.

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