Few years back, it was mandatory to send the damaged turbine shaft to the workshop for repairs. This involved dis assembly of complete turbine, removal of turbine shaft from the block, packing and transportation to the workshop.
A new technology has been introduced in recent years. Turbine shaft grinding machine designed is portable; light weight and can be taken to the site. The main feature of turbine shaft grinding machine is that it can be placed on the turbine shaft bearing sitting diameters and grinding and polishing can be done without dis assembly of turbine shaft. This process of grinding and polishing of turbine shaft by the portable turbine shaft grinding machine saves downtime and cost.
RA Power Solutions design and manufactures turbine shaft grinding machine. The machine is capable to undertake grinding of turbine shaft, crankshaft, alternator shaft & cylindrical shaft up to 700 mm. The turbine shaft grinding machine is priced economically and can be delivered in short time. It is highly recommended for power plants, shipping companies, workshops undertaking repairs, etc.
RA Power Solutions Pvt. Ltd. has sold more than 60 onsite turbine shaft grinding machines across the world.
RA Power Solutions undertakes onsite repair of engine block, compressor and rotary equipment for last more than 36 years. We feel that the repair of crack developed in cast iron, steel castings are repaired successfully by metal locking and metal stitching process without losing the original profile.
RA Power Solutions has executed successfully more than 600 jobs for the repair of housings which are damaged due to development of crack or casting is broken into pieces. The advantage of metal locking and metal stitching is that in case large area of casting is damaged a new piece having similar metallurgical properties is cast and metal stitched on the parent body of the casting.
Recently, we have undertaken repair of Jenbacher engine block. The casting of engine block i.e lower crankcase was broken into pieces, a new piece measuring 10 X 12 inch was metal stitched successfully.
We use proven and high quality of metal keys and metal locks and stand guarantee for the performance
Author of this blog is Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. having experience of more than 36 years. He is instrumental in executing successfully repairs of crankshaft, engine block, cylinder heads, connecting rods and mechanical equipments replacement cost of which works out in millions of dollars. The reputed companies spread all over the world regularly benefit from the rich experience of RA Power Solutions having excellent latest infrastructure required for repairs.
You can email us on email@example.com or Call us on +91-9810012383
Considering the continuous running and severe working condition of turbines it is advisable to conduct periodic inspection of turbine shaft. Following is recommended:
Inspection of turbine shaft bearing seating diameter for taper and ovality. This should be recorded.
Due to corrosion and fatigue cracks, it is recommended to undertake crack detection check preferably by magnetic particle test (MPI) or by dye penetrant test. This should be essentially undertaken by qualified technician.
Hardness Test – The hardness on the bearing seating area should be checked.
It is important that the turbine shaft bearing seating diameter is free of any bearing line marks, pitting, corrosion, etc and has the surface finish as per the international norms. This can be checked and surface finish can be improved by polishing the bearing seating area.
RA Power Solutions Pvt. Ltd. is providing above inspection services for turbine shaft, crank shaft, rotor shaft, alternator shaft and pump shaft for last more than 36 years all over the world and have served reputed companies. Our technicians are well trained, experienced and can be deputed to the site in a short notice.
The periodic inspection of turbine shaft is necessary. It is common to observe bearing line marks, corrosion, fatigue cracks, taper and ovality on turbine shaft bearing seating area In case these defects are not attended on time it can result to the failure of turbine shaft and damage to other parts.
RA Power Solutions Pvt. Ltd. has successfully executed repair of turbine shafts, crank shaft, rotor shaft, alternator shaft and pump shaft number exceeding 170 up to the diameter of 700 mm.
Special pneumatically driven grinding equipment is used to undertake the grinding of the turbine shaft. The turbine shaft grinding equipment is portable, light weighted and easy to carry to the site. The experienced engineers undertake the grinding of damaged bearing seating area of the turbine shaft and maintain the tolerances within 20-30 microns with high surface finish.