Goltens Worldwide Secures Germanischer Lloyd Approval

Press Release
Wednesday, September 19, 2012
Goltens In-Situ Crankshaft Annealing

Goltens Worldwide Secures Germanischer Lloyd Approval for In-Situ Crankshaft Annealing for Medium Speed 4-Stroke Diesel Engines

Goltens has announced that the Goltens Worldwide Group of companies had been awarded worldwide approval of its repair process for the In-Situ annealing of medium speed 4-stroke diesel engine crankshafts. This certification follows a formal review by Germanischer Lloyd of the crankshaft annealing process and related governing documents and procedures.

The approved procedure is designed to reduce excessive hardness in damaged crankshaft journals through annealing (heat treatment) of the crankshaft with a minimum amount of material removal. The process is specifically targeted at salvaging crankshafts that would otherwise be condemned and require replacement due to the severity of the hardness exceeding engine maker specifications. Goltens' experience has demonstrated that this hardness can be significantly reduced to within acceptable limits and that, after annealing, finish machining can restore the machinery to service with significantly less loss of crankshaft diameter as well as the avoidance of costly shaft/equipment removal and replacement.

“This certification is the culmination of years of R&D and successful applications across a wide range of engine makes and models in the field and in the workshop by our technical teams. Obtaining Germanischer Lloyd approval is validation that our process is safe, repeatable and effective in repairing crankshafts that would otherwise likely have been condemned. Further, the fact that approval covers our global network of stations and not one location demonstrates the value of our investments in consistent tooling and repeatable processes” notes Paul Friedberg, President of Worldwide Services for Goltens.




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