Polishing of Wartsila 18V32 Crankshaft

Few years back, no one believed that the crankshafts, crankpin and main journal can be polished onsite by the end user. Always the impression was given by few companies based in Europe and Singapore that crankshaft polishing needs special heavy equipments and technicians with years of experience to undertake the polishing of crankshaft, crankpin, and main journal.

Crankpin Machining is Required in Case of the Following Damage to the Crankpin

  1. Development of excessive taper & ovality on a crankpin.Seizure of crankpin bearingDevelopment of bearing marks and pitting on crankpin.
  2. Development of excessive taper & ovality on a Crankpin diameter.
  3. Seizure of crankpin bearing.
  4. Development of bearing marks and pitting on the crankpin.
  5. Due to the above defects, it is necessary to get the Crankpin Machining undertaken.
Polishing of Alternator Shaft
Polishing of Alternator Shaft

RA Power Solutions Pvt. Ltd, an easy-to-operate and do-it-yourself crankshaft polishing machine manufacturer, up to 700 mm in diameter.

Reason for periodical polishing of crankpin and main journal:-

  1. The engines of leading manufacturers like Wartsila, Daihatsu, Mirrless Blackstone, Yanmar, Allen, MAK, MAN, B&W, Sulzer, Caterpillar are designed to have close tolerances in the crank pin and main journal.
  2. Generally, the tolerance ranges between 0.02 mm to 0.05 mm.
  3. Periodical polishing of the crankpin and main journal diameter is highly recommended to remove the line marks, pitting from the journals.
  4. Crankshaft polishing improves the surface finish and enhances the life of bearing manifolds.
  5. The chance of the crankshaft meeting with any serious accidents or bearing seizure incidents is reduced considerably.
  6. The high surface finish of the crankpin and main journal after polishing can produce more power, durability, and long-lasting performance of the Engine.
  7. The crankshaft polishing results in less noise, vibrations, and friction, and consumes less fuel.
  8. Lower emissions are produced.
Polishing of MAN Engine Alternator
        Polishing of MAN Engine Alternator

Due to the above and many other reasons, it is highly recommended to undertake the polishing of the crankpin and main journal periodically at the time of major overhauling or replacement of bearings.

RA Power Solutions Pvt. Ltd. manufactures, for the last forty-five years, revolutionary equipment for the onsite polishing of crankpins without removing the crankshaft from the engine block. The crankshaft polishing machine is manufactured in the range starting from 35 mm to 700 mm in terms of diameter.

RA  Power Solutions has the following features:-

  1. The crankshaft polishing machine is inserted from the engine block inspection window and sits on the crankpin diameter.
  2. There is no requirement for the removal of the crankshaft from the block.
  3. The machine is supplied in two versions: electrical and pneumatic. This depends on the availability of the facilities on board the vessel or in any industry.
  4. Machine is easy to operate, and can reduce the taper and ovality. To improve the surface finish to far better than the international standards.
  5. The crankshaft polishing machine is easy to operate and can be used by any technician to do polishing.
Polishing of Crankshaft
      Polishing of Crankshaft
Crankshaft Polishing Machining
         Crankshaft Polishing                              Machining

Stop spending high amounts on polishing of crankshaft by calling the specialized companies. It reduces the cost of maintenance by increasing the life of bearings and crankshafts.

We are executing crankshaft grinding repair services in Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, the United Arab Emirates, Vietnam, the UK, the USA, and other countries.

For more information on  Onsite Crankshaft Polishing, crankshaft polishing machine manufacturers, polishing crank journals, crankshaft grinding and polishing, or cylindrical shaft grinding machine. Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131.

Leave a Reply