Insitu Crankshaft Grinding Machine	Onsite Crankshaft Grinder

In Olden times, the crankshaft repair was undertaken in a workshop and on a bench-type crankshaft grinding machine. The customer had no option, but to remove the crankshaft from the engine block and send it to the designated workshop for crankshaft repair purposes. The introduction of an onsite crankshaft grinding machine has made the crankshaft repairs. Simple and less time-consuming. The grinding and polishing of crankshaft is executed onsite and in assembled condition.

RA Power Solutions manufactures the latest design of crankshaft grinding machines, which are capable of undertaking the grinding of crankpin and main journal diameters up to 700 mm. This range of machine covers most of the popular make of engines and their models installed on a vessel or in industries. The onsite crankshaft grinding machine manufactured by RA Power Solutions is designed to maintain all the parameters of the crankshaft strictly, as stipulated in the Engine manufacturer manual. The ovality, Taper, surface finish, and all the major parameters are controlled during the process of repairs.

Onsite Crankshaft Grinding & Polishing Machine	onsite crankshaft grinding machine

The onsite crankshaft grinding machine is designed in such a way that it can be operated even while sailing the vessel. This saves considerable time, as there is no requirement of holding the vessel for repairs. This is of great advantage, especially, In the case of repair of the auxiliary engine crankshaft.

The cost of the machine is very low. It is highly recommended for shipping companies, and heavy industries, having multiple numbers of power generation equipment and engine repair workshops. It is estimated that the investment of an on site crankshaft grinding machine is recovered in the execution of 2-3 jobs.

We extend training to our customers on the operation and maintenance of an onsite crankshaft grinding machine. During the training, the technicians are trained on the job of grinding and polishing of crankshaft.

On-shore and Off-Shore Crankshaft Grinding Machine

For more information regarding onsite crankshaft grinding machine, grinding of crankshaft main journal, main journal crankshaft grinding service, crankshaft journal polishing and grinding, grinding of crankshaft onsite please contact us at rajshahani@rapowersolutions.com, info@rapowersolutions.com or call us at +91 9582647131, +91 9810012383.

The post ON-SITE CRANKSHAFT GRINDING MACHINE | PORTABLE | EASY TO OPERATE appeared first on Crankshaft Grinding Repair.

The major technical details of the Intermediate shaft are as follows:

Inspection of Intermediate shaft and repair planning:

• The intermediate shaft having a standard diameter of 280 mm and bearing width of 275 mm was inspected for dimensions, taper & ovality. Excessive ovality ranging from 0.36 mm to 0.72 mm was observed.
• Due to the failure of Babbitt’s white metal bearing the white metal was badly stuck on the diameter. It was removed by our technicians.
• As a routine inspection, the crack detection test by the MPI method was undertaken. Surface cracks on an entire diameter and bearing width were observed. The cracks were minor.
• The hardness was in general observed within limits and in the range of 182 HB scale (minimum) to 343 HB scale (maximum). Few hardened spots were observed.
• Due to the failure of Babbitt white metal bearing, deep scoring marks were observed on the intermediate shaft diameter.
• The intermediate shaft bearing area was observed to be rough with a surface finish of 0.90 RA value which is observed to be poor.

Action taken by RA Power Solutions for successful repair of the Intermediate Shaft

• The grinding of the intermediate shaft bearing sitting area was undertaken in different steps, as the objective was to remove the ovality and bearing line marks by reducing the intermediate shaft diameter to the minimum.
• After undersizing the diameter by 1.0 mm i.e. 279.00 mm the ovality and damage were still observed. It was decided to undertake further grinding.
• Finally, the diameter was reduced by 1.40 mm, maintaining a final diameter of 278.60 mm.
• The intermediate shaft bearing sitting diameter was polished after grinding.
• The following tolerance was maintained:
  • Taper & ovality was maintained within 0.02 mm.
  • The surface finish was improved & maintained less than the 0.15 mm RA value.

Grinding of Intermediate Shaft Bearing sitting diameter having no radius:

The onsite repair of the damaged intermediate shaft diameter was a challenge as it didn’t have any radius fillet. The companies based in Europe have an old design and outdated equipment as they take reference of radius fillet to undertake grinding. In this case, RA Power Solutions used equipment that doesn’t take any reference of radius fillet as the machine designed and owned by RA Power Solutions is a replica of a bench-type crankshaft grinding machine. By using this special-purpose machine, the repairs were executed successfully.

We have been regularly executing on site crankshaft repairs and crankshaft grinding in Dubai, Oman, Saudi Arabia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, and Fujairah, Bahrain, Kuwait, Iraq, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc.

For more details on the crankshaft polishing machine, and main journal polishing please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131, +91 9810012383.

The post Intermediate Shaft Onsite Grinding and Polishing appeared first on Crankshaft Grinding Repair.