There’s more to your surface plate than meets the eye. While granite is very hard and not greatly affected by temperature fluctuations – making it an ideal material for a reference surface – with continued use, a granite surface plate will wear over time.
Airborne abrasive dust and repeated sliding of gages or parts along the plate can create wear spots that are invisible to the naked eye. These spots affect the flatness and/or the repeatability of the plate and therefore the accuracy of the measurements that you make on it.
Accurate measurements are the basis for making accurate products, and start with an accurate reference surface.
The precision measurement group at Cross offers ISO 17025 accredited surface plate calibration for surface plates up to 60 inches in diagonal length. Our accredited granite surface plate calibration covers grades AA, A and B for repeatability at 0.002 inches and flatness up to 60 inches in diagonal length. We also offer granite surface plate resurfacing if needed, with a relap to bring surface plate back into specification.
For more information about surface plate calibration, click on the button below to get in touch with a J.A. King team member. Also, take a look at our article “Why You Should Calibrate Your Surface Plate“
See how our precision measurement team can help improve quality, increase efficiency, and reduce risk.
J.A. King is Now Cross Precision Measurement!
Same team, same expertise. Since 1939, the precision measurement professionals at J.A. King have been your trusted measurement partner; providing accuracy, reliability, and efficiency to let you focus on what you do best. That same team is now the Precision Measurement Group at Cross. Learn more about our history.
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