Month: April 2019

Crankshaft Reconditioning | Crankpin Reconditioning and Machining | Onsite Crankshaft Grinding & Polishing – RA Power Solutions

RA Power Solutions is a pioneering name in the realm of onsite machining services. With a commitment to precision and excellence, they offer a comprehensive suite of solutions aimed at addressing complex machining challenges without the need for equipment dismantling.

RA Power Solutions undertakes complete reconditioning of the crankshaft of marine engines, diesel generating sets, compressors, forging hammers, and all other applications. The crankshaft repair is undertaken onsite without removing the crankshaft from the crank casing. This saves the downtime of the equipment and cost of assembly of the engine after the crankshaft repairs are executed, in fact, companies are opting for on site repair of crankshaft, and sending the crankshaft to the workshop for repair is outdated. 

Grinding & Repair of Crankpin on Board a Vessel
Grinding & Repair of Crankpin on Board a Vessel

The following procedure is adopted by our experienced engineers for calibration:

Prior to starting, the repair of the crankshaft, crank pin, and main journals are subject to the following inspection:

  1. Crankpin and main journal are measured for the presence of taper and ovality.
  2. The alignment of the crankshaft is checked by deflection.
  3. Radius fillets and lubricating oil holes are inspected for their original profile.
  4. Inspection of hardness
  5. Crack detection by MPI/Ultrasound and dye penetrant test.
  6. Checking of surface finish
  7. Visual inspection of counterweight and counterweight bolts. In case of an accident, crack detection by MPI is recommended.
Inspection of Crankpin is in Process
Inspection of Crankpin is in Process
Inspection of Crankpin Before Grinding
Inspection of Crankpin Before Grinding

Based on the above observations, the crankshaft is repaired onsite maintaining the following parameters:

  1. The grinding of crankpin and the main journal is undertaken as per the undersize recommended by the manufacturers and the availability of the bearings with the engine manufacturers.
  2. Preparation of radius fillet, lubricating oil hole, and maintenance of profile as the original.
  3. Polishing the crank pin and main journal, maintaining the surface finish as per international standards.
  4. Checking of hardness and crack detection test after repairs are executed.

We have a team of experienced technicians and the necessary instrumentation to undertake the repair of the crankshaft on board a vessel, even while sailing or for stationary engines.

All the crankshaft repairs, onsite crankshaft inspection, and onsite machining services undertaken by RA Power Solutions are guaranteed satisfactory performance.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He has 44 years of experience in providing services related to engine repair and overhauling, crankshaft grinding and polishing, crankpin reconditioning, and many more.

For any queries regarding crankshaft grinding for industrial and marine applications, crankshaft regrinding and compressor large engine, crank grinding, main journal crankshaft grinding, crankshaft grinding machine manufacturer, on-site grinding, onsite machining, onsite crankshaft grinding, onsite crankshaft inspection, and onsite machining services, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131,+91 9810012383.

Grinding & Repair of Crankpin
Repair of Crankshaft by Portable Crankshaft Grinding Machine
Crankshaft Radius Under Machining
Crankshaft Radius Under Machining

Crankshaft Grinding And Repair Services | Crankshaft Reconditioning | Crankpin Machining – RA Power Solutions

RA Power Solutions undertakes onsite crankshaft grinding and repair, crankpin reconditioning, and crankpin machining up to a diameter of 700 mm. It is observed that due to serious accidents sometimes the radius fillet of the crankpin or main journal is damaged, and it is difficult to undertake the crankshaft repair onsite without removing the crankshaft from the engine block and transporting it to the designated workshop.

With more than forty-four years of experience in this field, we have added a portable onsite crankshaft grinding and polishing machine that can undertake crankshaft grinding and crankshaft polishing without taking the reference of radius fillet of the crankpin or crank main journal thus saving the crankshaft from rejection.

Inspection of Crankpin on Board a Vessel
Inspection of Crankpin on Board a Vessel
Inspection of Crankpins is in Process
Inspection of Crankpins is in Process

It is our experience that the cost of the crankshaft is very high, and in the case of high-capacity engines, it works out to be 20 to 25% of the cost of the engine. Considering this fact, it is most important that the job of crankshaft grinding and crankshaft repair is entrusted to the company that has experience in repairing the crankshaft successfully. With experience of four decades in this field and successfully repaired more than 10,000 crankshafts, we are considered to be leaders in this field and are trusted by shipping companies, diesel power plants, and engine manufacturers for the repair of crankshaft strictly as per the specifications and tolerances stipulated by the manufacturer.

The timely inspection and repair of the crankshaft are again of great importance. We have a team of engineers who can fly on short notice for the inspection and repair of the crankshaft to any part of the world. The crankshaft repair undertaken by us is guaranteed satisfactory performance.

Onsite Crankshaft Grinding Machine
Onsite Crankshaft Grinding Machine

Our crankshaft grinding services have the following features:

  • Onsite machining, grinding, and polishing of crankpins up to 700 mm.
  • Onsite machining, grinding, and polishing of all cylindrical shafts including turbine, alternator, pump shafts, and tail shaft up to the diameter of 700 mm.
  • Repair of radius fillet by grinding and polishing.
  • Portable pneumatically, lightweight crankshaft grinding machine that can be taken to any site all over the world.
  • All technicians having valid CDC can sail on the vessel.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He has 44 years of experience in providing services related to engine repair and overhauling, crankshaft grinding and polishing, crankpin reconditioning, crankshaft repair, and many more.

Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information regarding Crankshaft Grinding Machine For Engine Repair, Insitu Crankshaft Grinding Repair Service, Onsite Crankshaft Repair And Grinding, Insitu Crankshaft Repair And Grinding, Crankshaft Grinding For Marine Equipment, Onsite Crankshaft Grinding Services, Insitu Crankshaft Grinding Services, Crankshaft Grinding And Repair Services, In Situ Crankshaft Grinding And Repair.