Rehabilitation of a span by orbital machining 

As part of a curative maintenance operation on hydraulic production equipment, an intervention was carried out on a damaged cylindrical bearing, requiring a geometric correction on site.

The operation involved a cross-axis orbital machining machine, allowing direct intervention on the shaft without disassembly of the structure. After establishing a geometrical reference via laser tracker, an unwinding machining was carried out, with a removal of 10 mm at least radius over a length of 450 mm.

A weld was then made on the two chamfers, followed by a finishing machining of diameter Ø200 mm, carried out in a tolerance of 0.10 mm, by controlled pass.

The entire intervention was conducted in a constrained environment, with portable equipment and a high level of accuracy requirements. Dimensional and visual checks were used to validate the compliance of the treated scope.

This type of service illustrates the ability to restore critical functional areas on site, reducing downtime while ensuring the reliability of mechanical assemblies.