Geometric Inspection and Machining of a Shaft

A series of metrology operations was carried out on a crusher shaft, as part of a full inspection and follow-up process before and after corrective machining. These operations were conducted on-site, with the aim of recording the shaft’s initial geometric condition, performing targeted machining, and validating the final dimensions.

Measurements were conducted using a laser tracker, based on a reference system adapted to the shaft’s cylindrical geometry. Thermal conditions were taken into account, with value corrections applied to a standard reference temperature. A specialized metrology software was used to guide the measurement process and optimize data processing.

The intervention included several key stages:

• Initial inspection of the shaft cylinders, distinguishing between previously machined and raw areas,

• Machining setup, including the installation of a support ring for machine guides,

• Orbital machining of the targeted surface,

• And finally, a geometric validation check post-machining.

This comprehensive approach ensured restoration in compliance with specifications, providing rigorous dimensional traceability throughout all stages of the process—before, during, and after the intervention.