crankshaft grinders machines Archives

The in situ crankshaft grinding and crankshaft repair machine is a unique invention and is of great assistance to the shipping companies as they can not remove the crankshaft from the vessel and send it to the workshop for repair. Again, the crankshaft grinding machines installed in the workshop are not an ideal solution due to its high cost and lack of know-how to operate. RA Power Solutions manufactures and exports onsite crankshaft grinding and repair machines having a range of 35 mm to 700 mm in terms of the diameter of crankpin and main journal of the crankshaft.

Crankshaft Grinding Machine of Bigger Diameter

Crankshaft Grinding Machine has the following features:

Onsite crankshaft grinding and polishing machine is compact, lightweight, and can be inserted from the inspection window of the engine block.
It is simple in design, easy to operate, and maintain
Crankshaft grinding and polishing machine body is manufactured out of titanium steel having the property of absorbing the vibrations. With the vibration or almost zero vibration machine can also be used for crankshaft grinding and crankshaft repair while sailing of the vessel.
- All parameters and tolerances as recommended by the engine manufacturer can be strictly maintained.
With the use of onsite crankshaft grinding and polishing machine, repair can be done in one setting. Thus saving the time.
This crankshaft grinding and polishing machine is manufactured with a pneumatic or electrical drive depending on the client’s requirement.
On Job training for the operation and maintenance of the crankshaft grinding machine is extended through our experienced technicians.
Crankshaft repair machine is supplied in a toolbox and can be transported all over the world.

**Onsite Crankshaft Grinding & Repair Machine**

We have sold more than 70 crankshaft grinding machines all over the world that includes shipping companies, leading repair workshops and power plants, etc.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in solving the major issues related to repair and overhauling of engines, grinding and repair of the crankshaft, and many more related to the high capacity engine.

For more information regarding onsite machining of crankshaft, in situ crankshaft grinding repair, crankshaft grinding machines, onsite crankshaft grinding, and crankshaft polishing equipment, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Repair of Crankpin by Crankshaft Grinding Machine**

**Onsite Grinding Machine for Small Diameter**

RA Power Solutions manufactures in situ crankshaft grinding and polishing machine. It is a revolutionary, lightweight, easy-to-operate, and compact crankshaft grinding and crankshaft polishing machine which can undertake the repair of crankpins up to the diameter of 700 mm without removing the crankshaft from the engine block. The in situ crankshaft grinding and crankshaft repair … Continue reading “In Situ Crankshaft Grinding Machine | Onsite Crankshaft Grinding & Polishing Machine | Crankshaft Grinder – RA Power Solutions”

For over four decades, RA Power Solutions has led the industry in portable crankshaft grinding, enabling repair directly on vessels or in power plants—eliminating the need to dismantle or transport heavy engine components.

RA Power Solutions manufactures the insitu crankshaft grinding machine, which is lightweight, portable, and easy to operate. We developed and manufactured this revolutionary equipment.

Globally Deployed Machines & Capabilities:

Designed for crankpin and main journal diameters between 35 mm and 700 mm—covering most diesel engine builds
We have sold over 100 machines worldwide to shipping firms, power plants, and engine workshops. Clients are located in countries like Singapore, Nigeria, Italy, Saudi Arabia, and beyond.
Combines grinding and polishing in one setup, with minimal vibration, maintaining tolerances as tight as 0.02 mm.

Key Features & Benefits:

Feature	Benefit
Compact, lightweight design	Easily fits through engine inspection windows and transports globally with ease
Titanium‑steel vibration‑absorbing frame	Enables grinding even while the vessel is underway, preserving OEM tolerances
Electrical or pneumatic drives	Versatile operation adapted to client’s power infrastructure
On-job training included	Technicians learn how to operate and maintain the equipment directly from RA Power staff
Fully portable toolbox unit	Supplied ready-to-use in a steel box—ideal for rapid site deployment

Why Onsite Grinding Beats Workshop Repairs?

Reduces downtime by eliminating dismantling and logistics
Cuts costs significantly versus sending crankshafts to external workshops
Meets or exceeds OEM specifications, including taper, ovality, and surface finish.
Fully class-approved repair methods and international case studies support machine reliability worldwide.

Proven Track Record

RA Power Solutions’ patented handheld machines have repaired over 10,000 crankshafts worldwide, delivering results trusted by shipowners and industrial clients alike.
Ideal for marine engines, power-plant diesels, turbines, alternators, and general rotary equipment requiring precision journal repairs.

Get in Touch
Need emergency crankshaft repair or onsite polishing? RA Power Solutions offers Insitu Crankshaft Grinding Machine for 24/7 global service with immediate dispatch. Contact us:
Email: rajshahani@rapowersolutions.com or info@rapowersolutions.com

Phone: +91 9582647131 | +91 9810012383

FAQs:

Q1: What is an in-situ crankshaft grinding machine?

Technicians use this portable machine to grind crankshaft journals directly on-site. It eliminates the need to dismantle the engine.

Q2: What crankshaft sizes can your machine handle?

Our machines cover crankpins and main journals ranging from 35 mm to 700 mm in diameter.

Q3: Can the machine be used onboard ships?

The compact, vibration-free design allows technicians to use it on ships—even during voyages.

Q4: What power options are available?

Machines can be operated with either pneumatic or electric power, depending on site conditions.

Q5: Do you provide training with the machine?

Yes, onsite training and support are included to ensure proper operation and maintenance.

For over four decades, RA Power Solutions has led the industry in portable crankshaft grinding, enabling repair directly on vessels or in power plants—eliminating the need to dismantle or transport heavy engine components. RA Power Solutions manufactures the insitu crankshaft grinding machine, which is lightweight, portable, and easy to operate. We developed and manufactured this … Continue reading “Insitu Crankshaft Grinding Machine – RA Power Solutions”