The Crankshaft Grinding Machine is state-of-the-art equipment designed to restore crankpins and main journals onsite, eliminating the need for engine disassembly or crankshaft removal. Marine, industrial, and power-generation sectors find it indispensable due to its precision, portability, and advanced engineering, which minimizes downtime.
Key Features of the Crankshaft Grinding Machine
1. Portable & Modular Engineering
The machine’s lightweight and modular construction enables quick transportation, assembly, and operation directly at site locations—including confined engine rooms, vessels, offshore platforms, and remote industrial facilities.
2. Wide Grinding Range
With the capability to machine crankshafts from 35 mm to 700+ mm, it supports a broad spectrum of engines used in marine propulsion, diesel power plants, industrial equipment, and heavy machinery.
3. Advanced Vibration-Control Technology
Manufactured using specially developed vibration-dampening alloys, the machine ensures exceptional stability during operation. This directly contributes to a superior surface finish and precision, even in the most demanding environments.
4. Micron-Level Accuracy
The machine restores crankpins and main journals to original OEM tolerances. Ovality, taper, and size corrections are executed with high precision, ensuring long-term reliability and smooth engine functioning.
5. Combined Grinding & Polishing System
Grinding and polishing are performed in the same setup without disturbing the alignment. This integrated design saves significant time while delivering consistent journal geometry.
6. Rapid Setup & Alignment
Special fixtures and alignment tools allow the machine to be mounted quickly with perfect axial positioning. This is particularly critical in constrained spaces, as it reduces the overall repair duration.
7. Exceptional Surface Finish
The machine delivers a mirror-like surface suitable for high-speed and high-load-bearing applications, improving lubrication and extending crankshaft life.
How the Machine Operates
(i) Mounting & Fixture Alignment
Custom brackets are used for precise mounting on the crankshaft.
(ii) Measurement & Diagnosis
Dial gauges and micrometers record journal wear, taper, and ovality.
(iii) High-Precision Grinding
Controlled grinding restores the exact journal size and geometry.
(iv) Polishing
The same machine produces a smooth, bearing-ready finish.
(v) Final Inspection
Journal dimensions are rechecked to confirm OEM tolerance compliance.
Operational Advantages
✔ Minimal Downtime
Repairs are completed onsite, significantly reducing engine outage time.
✔ Major Cost Savings
Eliminates logistics, crane usage, transportation, and external workshop costs.
✔ Extends Engine Life
Accurate restoration ensures long-term durability and prevents premature engine failure.
✔ Ideal for Any Environment
Marine vessels, offshore rigs, industrial plants, and remote installations benefit from its portability and precision.
RA Power Solutions: Global Leader in Crankshaft Grinding Technology
RA Power Solutions Pvt. Ltd. is the designer, manufacturer, and worldwide supplier of the advanced Onsite Crankshaft Grinding Machine. With over four decades of experience in engine repair and rotating machinery services, the company has become a trusted name across the marine, industrial, and power sectors.
Why RA Power Solutions Stands Out
1. In-House Design & Manufacturing
The Crankshaft Grinding Machine is designed and built entirely by RA Power Solutions, ensuring:
• superior metallurgy
• vibration-free performance
• long operational life
• precise grinding accuracy
2. Global Onsite Service Expertise
Their team has performed 10,000+ onsite crankshaft grinding and repair jobs across more than 90 countries, giving them unparalleled field experience.
3. Continuous Innovation
The machines are regularly upgraded based on real-world feedback from:
• marine engineers
• power plant operators
• industrial maintenance teams
Each new generation offers improved efficiency, portability, and accuracy.
4. End-to-End Support
RA Power Solutions provides:
• machine supply
• operator training
• spare parts
• onsite grinding services
• technical consultancy
5. Proven Track Record
Widely used in:
• marine main engines (MAK, MAN, Wärtsilä, Yanmar, etc.)
• diesel generator sets
• cement and steel plants
• petrochemical facilities
• offshore platforms
Crankshaft Grinding Machine By R A Power Solutions
Clients trust RA Power Solutions for consistent quality and fast turnaround.
• Applications Across Industries
• Merchant vessels & offshore ships
• Power generation plants
• Cement, steel & mining sectors
• Heavy industrial machinery
• Remote and unmanned installations
Need more information on crankshaft grinding machines, polishing of crankpins, grinding of crankshafts, in situ crankshaft grinding, or crankpin polishing machines? Please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
