Tag: crankshaft polishing

Crankshaft Machining | Crankshaft Grinding | Crankshaft Polishing

With the experience of more than four decades, RA Power Solutions has been the leader in providing in-situ crankpin, main journal grinding, and machining. The removal of the crankshaft from the engine block in case of an accident or normal wear and tear is not required. The removal of the crankshaft from the engine block is a lengthy process and expensive, and engine manufacturers are to be contacted for the disassembly and removal of the Crankshaft from the engine.

The onsite crankpin, main journal grinding and crankshaft polishing are undertaken by RA Power Solutions using the state of the art equipment which can be taken to any site on a ship or land-based industry.

Crankshaft Machining on Board a Vessel
Crankshaft Machining on Board a Vessel

The onsite crankshaft grinding machine is placed on the damaged crankpin through the inspection window provided in the crankcase. Due to the compact design of the machine, most of the crankshafts can be repaired onsite.

RA Power Solutions undertakes onsite machining, onsite grinding of crankshafts and crankshaft polishing services of diameters ranging from 60 mm to 700 mm.

Onsite Crankshaft Grinding & Polishing Machine
Onsite Crankshaft Grinding & Polishing Machine
Crankshaft Grinding Machine- Grinding Crankpin
Crankshaft Grinding Machine- Grinding Crankpin

The jobs of crankpin and main journal repair of crankshaft executed by us have the following features:

  • Having the latest quality control measuring instruments to check hardness, crack by MPI, taper, ovality, surface finish, etc.
  • All instruments used for measuring the crankpin and main journal diameter are periodically sent to the laboratory for calibration. Valid certificates are kept in the record as per the requirement of inspection agencies.
  • The latest design and technology instruments/equipment are used prior to the repair of the crankshaft and after the repair is executed.
Damaged Crankpin Before Grinding
Damaged Crankpin Before Grinding
Finished Crankpin After Grinding
Finished Crankpin After Grinding

Advantage of RA Power Solutions for Crankshaft and Main Journal Repair

  • Crankshafts are repaired onsite up to a diameter of 700 mm. No need for the removal of the crankshaft.
  • An experienced team of technicians is always ready to leave for sailing all over the world. The holding of seamen passports by technicians facilitates them to fly out to any country on short notice.
  • The robust design and use of titanium for manufacturing the body of the crankshaft grinding machine ensure minimum or no vibration while the crankshaft grinding machine is in operation. The job of repairing the crankshaft can be executed while the vessel is sailing.

All the services required for the repair of the engine and to put it back into operation are extended by RA Power Solutions, including commissioning and trial part.

The experience of repairing over 10,000 crankshafts makes us a leader in this field. The cost of repair of the crankshaft and the services offered are the lowest in the industry. This is possible due to the continuous upgrading of technology and process followed by us.

For more information regarding onsite machining of crankshaft, crankshaft polishing, polishing of crankshaft, and onsite crankshaft polishing mail us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Grinding of Crankpin is in Process
Grinding of Crankpin is in Process

Repair of Crankshaft – RA Power Solutions

Reduce Cost And Breakdown Time By Onsite Repair Of Crankshaft

Onsite Crankshaft Grinding and Polishing Machine
Onsite Crankshaft Grinding and Polishing Machine

The failure of crankpin and main journal bearing causes serious damage to the crankshaft which are as following:

  1. Development of excessive taper and ovality in Crankshaft, Crankpin and Main Journal.
  2. Development of crack
  3. Abnormal increase and decrease of hardness
  4. Loss of alignment of crankshaft resulting to the increase in deflection readings.
  5. Development of bearing line marks, pitting, local depression
  6. Damage of radius fillet and lube oil profile

The onsite crankshaft grinding equipment developed and manufactured by us is capable to undertake grinding and polishing of crankshaft in one setting. The tolerances after crankshaft repair are strictly maintained as per the manufacturer’s specifications.

Removal of Crankshaft from Engine Block
Removal of Crankshaft from Engine Block

Repair of Crankshaft is in Process
Repair of Crankshaft is in Process

We have a highly trained skilled team of technicians who are deputed to the plant site or on a vessel in a minimum possible time. The process followed by us for repair of crankshaft is faster, more cost-effective and convenient. It of course avoids removal of crankshaft and transport to the workshop.

The repair of crankshaft executed by RA Power Solutions Pvt. Ltd is approved by leading inspection agencies including Lloyds, DNV, and many other inspecting agencies. For more information, please write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crank Pin After Grinding and Polishing
Crank Pin After Grinding and Polishing