Compressors are installed in heavy industries, oil and gas sectors and are used for various applications.

The compressors are generally operated continuously except for maintaining the routine maintenance schedule.

Few companies and engineers are aware of that now it is possible to undertake compressor shaft machining and repair onsite even without removing it from the block.In case of an accident of compressor shaft, crankshaft, turbine shaft, forging press shaft we have a team of technicians who travel with calibrated measuring instruments and undertake the inspection.

The inspection of the compressor crankshaft includes dimensional calibration, MPI for crack detection, hardness check and various other parameters.

It is generally observed that in case of seizure of bearing or accident crankpin and main journal of crankshaft diameter gets damaged develops taper and ovality or rough surface.

We have the set of latest generation onsite grinding machines by which we undertake grinding of crankshaft and polishing of crankshaft onsite without removing them from the block.With the portable onsite crankshaft grinding machine, it is possible to maintain taper, ovality and surface finish of crankpin and main journal strictly as per the manufacturer specifications and tolerances.The final report on our prescribed inspection formats is submitted to the client.

The objective of repair of crankshaft is to ensure that crankshaft after repair performs satisfactory and it is saved from rejection.

Generally, the cost of high capacity engine crankshaft ranges between 20 to 30 % of the cost of the engine need less to mention here that RA Power Solutions with experience of forty years in the field of repair of crankshaft always endeavors to save the crankshaft from rejection and ensure satisfactory performance after the crankshaft repair is executed.

The Crankshaft Grinding Machine used by us is of latest design which is capable to maintain specifications and tolerances of crankpin and main journal of the crankshaft as per the manufacturer’s guidelines stipulated in the maintenance manual.Prior to undertaking the Repair of Crankshaft following sequence of inspection is conducted by our senior and experienced technicians.

Our technicians are trained in engine manufacturers facilities and also in house training school.Dimensional inspection of crankpin and main journal of crankshaft for taper and ovality.Measurement of radius filled and bearing width.Crack detection of crankpin and major journal by ultrasound and magnetic particle test (MPI).Inspection of hardness.Checking of run-out and deflection in case possible.Visual inspection.Once the inspection of crankshaft is done, the repair is executed onsite without removing the crankshaft from the engine block.In order to save the crankshaft from rejection and to ensure continuous running, we donot always  follow the manufacturer’s tolerances , there are number of crankshafts which have been repaired by us and have been accepted under deviation for higher hardness, presence of surface crack etc,Our satisfactory performance hundreds of crankshafts have been repaired by us, crankpin main journal and crankpin diameter of which was damaged by the last limits is prescribed by the manufacturer.We undertake the Crankshaft Grinding more than the last limits and have supplied this bearing to the end user resulting to the saving of crankshaft successfully.