Crankpin Reconditioning | Crankpin Polishing and Onsite Crank pin Repair – RA Power Solutions

RA Power Solutions has now made it easy to undertake crankpin grinding, crankpin repair and crank pin polishing onsite in a short time with the lowest cost.

We undertake onsite crankpin repair, crankpin grinding and crankpin polishing of crankshaft diameter ranging from 30 mm to 700 mm. This is undertaken by lightweight, easy to operate and portable onsite crankshaft grinding machine which is taken to the site. We have team of experienced technicians having valid passport and CDC. They can travel to any destination in the world in the shortest possible time with portable crankshaft grinding equipment and can also undertake repairs while sailing of vessel. Following procedure is generally followed for successful onsite crank pin repair of crankshaft:

Crack Detection Test of Crankpin
Crack Detection Test of Crankpin
  1. Initial dimensional inspection of crankpin is undertaken by calibrated measuring instruments for taper, ovality and other parameters.
  2. Radius fillet, lubricating oil hole of crankpin is checked for any loss of profile and damage.
  3. Crack detection test by high-intensity MPI torch is undertaken by level 3 qualified technicians.
  4. Hardness check and other important parameters are checked and recorded.

After the initial inspection, in case required grinding and polishing of crankpin is undertaken to maintain the tolerances strictly as per the manufacturer’s specifications.

The onsite crankshaft grinding machine used by RA Power Solutions engineers for grinding and polishing of crankpin and crankpin repair is self-designed and is improved from time to time.

Inpection of Crankpin is in Process
Inspection of Crankpin is in Process
Onsite Inspection of Crankpin Before Grinding & Polishing
Onsite Inspection of Crankpin Before Grinding & Polishing

The combination of skilled technicians and the most modern onsite crankshaft grinding machine is used for crankpin grinding delivers and maintains the tolerances after crankpin repair which is better than the international standards and the tolerances specified by the engine manufacturers. Our company is having more than four decades of experience in successful repairs of the crankshaft of high-capacity engines used for power generation, shipping, etc.

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

RA Power Solutions also provides the following onsite repair services:

  • Machining and grinding of crankpin journals up to 700 mm diameter.
  • Grinding of main journals
  • Machining and grinding of crankpin fillets
  • Grinding and Machining of main journal fillets
  • Machining and grinding of intermediate shaft/tail shaft
  • Grinding and polishing of crankshaft, turbine shaft, alternator shaft, pump shaft
  • Metal stitching/metal locking of damaged casting
  • Overhauling and repair of engine.
  • Rebabbitting of old white metal bearings
Repair & Overhauling of Engine
Repair & Overhauling of Engine
Repair of Intermediate Shaft
Repair of Intermediate Shaft

Author is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in providing onsite repair services related to high capacity engines across the world. He has designed and developed the portable crankshaft grinding machine to save time and money.

For more information regarding grinding of crankshaft, onsite crank pin repair, onsite repair services and crankpin repair, please free to write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crank Pin Repair on Board a Vessel of Hyundai Diesel Engine – RA Power Solutions

Hyundai Diesel Engine for Repair
Hyundai Diesel Engine for Repair

RA Power Solutions Pvt. Ltd. was called by a shipping company based in Indonesia reporting the failure of crank pins of Hyundai 1.8 MW diesel engine. Our technicians were deputed with portable crankshaft grinding machine designed and manufactured by us.

On arrival of our technicians it was observed that all the 6 CR pins of Hyundai engine were badly damaged due to failure of lubricating oil pump. The initial inspection of crank pins was conducted comprising of calibration for taper and ovality. Hardness test, crack detection by MPI and deflection checks were also done and recorded.

MPI of Crankpin for Crack Detection is in Process Crank Pin Repair of Hyundai Diesel Engine
MPI of Crankpin for Crack Detection is in Process Crank Pin Repair of Hyundai Diesel Engine

RA Power Solutions Pvt. Ltd. was successful in executing the on site crankshaft grinding of 6 nos. CR pins in short time of 72 hours. This achievement was possible because of the excellent design of onsite crankshaft grinding machine was developed and manufactured by RA Power Solutions in house engineers. A pneumatic turbine with high capacity and latest design was used which helped technicians to execute the repairs in short duration.

CR pins Grinding of Hyundai engine is in Process
CR pins Grinding of Hyundai engine is in Process
CR Pin After Grinding
CR Pin After Grinding
   

RA Power Solutions Pvt. Ltd. is far ahead of its competitors, having more than 36 years of experience and extending the services of diesel engine crankshaft repairs all over the world. To get more information regarding engine bearings for crankpin, in situ grinding crankpins, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.