With the insitu crankshaft grinding machine, our trained specialists can arrive at a site in the shortest amount of time and fix the crankshaft without removing it from the main engine.

Efficient crankshaft on the engine Restoration: 35 to 700 mm in diameter Grinding Accuracy

Since the crankshaft is the engine’s central component, it transforms reciprocating motion into the linear movement that powers the engine through the use of connecting rods. With the process, technology, and onsite crankshaft grinding equipment from RA Power Solutions, crankshaft repair is now feasible without removing the crankshaft from the engine. These machines range in size from 35 mm to 700 mm. Our technology can repair crankshafts up to 700 mm in diameter, allowing us to fix any crankshaft, regardless of its weight or length.

In general, the crankshaft has several applications, including diesel generators and marine engines. Typical areas of crankshaft applications are as follows:

• Compressors
• Power generators
• Forging hammers
• Pumps
• Marine engines

RA Power’s Journal and Crankshaft Machining Advantages:

• The vast experience of having repaired over 10,000 shafts on any size Main or Auxiliary engine

• Specially designed crankshaft machining tooling for insitu reconditioning without dismantling the full engine, deployed all around the globe.

• A large, global team of highly skilled machining technicians ensures a rapid, expert response anytime and anywhere.

• The latest breed of inspection instruments is available to undertake hardness tests, MPI, surface roughness tests, dimensional inspection, etc.

• Our crankshaft grinding machine weighs 1/3rd of our competitors, saving on freight costs.

Giving ship and power plant crews the tools they need to grind and fix crankshafts on site

Years of crankshaft grinding and polishing by RA Power Solutions, it is now possible to not only grind and polish the crankshaft onsite, but also to repair the crankshaft by ship or power plant crew.

For more information on in situ crankshaft grinding, onsite crankshaft grinding, crankshaft grinding, insitu crankshaft grinding repair, onsite crankshaft machining, and crankshaft machining in situ, crankpin bearings, bearings for MAN and MAK engines please contact info@rapowersolutions.com, rajshahani@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs

The post Insitu Crankshaft Repair | Onsite Crankshaft Grinding And Polishing | 45 Years Of Expertise appeared first on Rebabbitting Bearing.

What Goes Wrong with Hand Polishing

Based on RA Power Solutions’ decades of experience, here are the main drawbacks:

• Bearing line marks and pitting remain
  Minor surface damage, like line marks (from bearings) and pitting, is not removed completely by hand polishing. These defects undermine surface integrity and can lead to premature wear.

   

• Taper and ovality get worse, not better
  Crankpin and main journals often have tight tolerances for taper and ovality (i.e., deviation from perfect cylindricity or uniform diameter). Hand polishing cannot correct these and often makes them worse.

   

• Surface finish suffers
  Engine and bearing manuals usually specify key metrics like surface roughness (e.g., Ra values). Hand polishing can’t ensure you reach those finishes reliably.

   

What the OEMs / Manuals Require

To deliver optimal performance, crankshaft components must often meet:

• Taper & ovality between 0.02 mm to 0.05 mm, depending on diameter.
  
• Surface finish of Ra < 0.25 (unit depends on the standard, usually microns).
  

These are very tight tolerances, difficult to consistently achieve with hand methods.

Onsite Grinding and Polishing Machines: Key Benefits

RA Power Solutions has developed (and field-tested) portable onsite machines with capabilities for diameters from ~30 mm up to ~700 mm. Here are the advantages they bring:

Portable Crankshaft Grinding Machine by RA Power Solutions:

RA Power Solutions has introduced a portable, lightweight, onsite crankshaft grinding and polishing machine which is capable of grinding and polishing diameters ranging from 30 mm to 700mm. The onsite crankshaft grinding machine is revolutionary. You can insert this portable equipment through the inspection window of the engine block. There is no requirement for the removal of the crankshaft from the engine block.

RA Power Solutions specializes in crankshaft polishing, offering high-quality services to improve the performance and longevity of crankshafts. our skilled technicians utilize state-of-the-art equipment and cutting-edge techniques for precise and efficient crankshaft polishing. The use of a dedicated crankshaft polisher ensures that the polishing process is done with utmost precision and consistency.

For more information on Onsite Crankshaft Polishing, Crankshaft Grinding please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The post Consequences Of Hand Polishing Of Crankshaft and Benefits Of Crankshaft Polishing Machine appeared first on Rebabbitting Bearing.

Cracks in the engine block often develop due to accidents, thermal stress, mechanical overload, or material fatigue. Rather than enduring long delays and high replacement costs, our expert team can deliver reliable repairs on-site, even while the vessel is sailing.

What Causes Engine Block Cracks?

Engine blocks may crack due to several reasons:

• Overheating: Excessive temperature causes uneven metal expansion and fractures.
• Thermal Cycling & Mechanical Stress: Repeated heat and vibration cycles weaken the block over time.
• Coolant Freezing: Ice expansion inside coolant passages can split the metal.
• Physical Damage: Accidents or impacts can initiate cracks.

We have more than 45 years of experience in cracked engine block repair, cast iron engine block repair, engine blocks, cylinder heads, broken engine block repair, and heavy castings. We use high-quality metal locks and metal keys, which are imported from the US and UK.

We have a team of trained technicians, and ours is the only company that can undertake crack repair by metal locking and the metal stitching process while the vessel is sailing.

For more information on cracked engine block repair, broken engine block repair, and cast iron engine block repair, you may contact rajshahani@rapowersolutions.com and info@rapowersolutions.com or call us at +91-9582647131.

FAQs:

The post Cracked Engine Block Repair | Cast Iron Repair | Broken Engine Block Repair appeared first on Rebabbitting Bearing.