
Metal Stitching | Metal Locking | Crack Repair | Metal Lock Surgery
RA Power Solutions, having more than forty-five years of experience in the field of repair and maintenance of high-capacity engines, understands the importance of the parts.
In case of damage to engine components or cracks, RA Power Solutions repairs them onsite by metal stitching or metal lock surgery. We lead this field because we use master lock, masterpiece, keys, and high-quality consumables imported from the UK.
Our technicians have extensive experience. They can execute crack repairs and repair damaged casting components while the vessel is sailing.

Following is the process of metal locking, metal stitching, and its advantages.
Process of Metal Locking, Metal Stitching:
Experts accept the metal stitching process as the method for repairing all cracked, broken, and damaged castings in cast iron, aluminium, and steel.
The Stitching Process:
- First, we identify visible and invisible cracks.
- We clamp the parts together to restore them to their original position.
- We make a rectangular hole across the fractured portion.
- This hole is made by drilling and chipping.
- We insert the master lock, a large rectangular key of special metal, into the hole.
- We insert locking pins alongside the master lock. These pins provide a tight and secure master lock.
- We insert a length of metal stitching keys on the sides of the master lock. These keys prevent the locking pins from falling out when the casting faces high vibrations.
Advantages of Metal Stitching:
- No heat stress is induced
- No Distortion occurs
- In many instances, machining is not required
- Invaluable in emergencies
- Reduces downtime
- Gas/ Liquid proof repair
Crack Repair in Grey Cast Iron | Aluminium and Cast Steel Components
We have observed that accidents or continuous engine running cause cracks in grey cast iron, aluminium, and cast steel components. You do not need to disassemble the equipment or repair it by welding. We undertake the repair of cracks and badly damaged components by metal stitching and the metal lock surgery process.
Experts have proven the effectiveness of this crack repair method. They use it widely all over the world.
We provide 24×7 crack repair services in grey cast iron, aluminium, and cast steel components using metal stitching and metal locking.
We have a dedicated team that undertakes crack repair of cast iron and repair of damaged casting. RA Power uses special pneumatic tools, locks, and keys to execute the repairs. We guarantee satisfactory performance for all crack repair jobs in grey cast iron, aluminium, and cast steel components.

We extend metal stitching services all over the world, including countries like Brazil, Egypt, Panama, Russia, Argentina, Ecuador, Czech Republic, Senegal, Fiji, France, Germany, Dubai, Kenya, Chile, and Mexico.
For more information on metal lock surgery, please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
FAQs:
They are cold repair methods using special keys and locks to seal cracks in cast iron, aluminum, and steel components without heat.
Technicians can execute repairs onsite, even while the vessel is sailing. They do not need to dismantle the equipment.
We use high-quality master locks, masterpieces, keys, and consumables imported from the UK.
In many cases, machining is not required post-repair.
The method prevents heat stress, avoids distortion, reduces downtime, and provides gas/liquid-proof repairs.

