Metal Stitching | Metal Locking | Crack Repair | Metal Lock Surgery

RA Power Solutions having more than forty 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 undertakes repair onsite by metal stitching or metal lock surgery. We are considered to be the leaders in this field as we use the master lock, masterpiece, keys and consumables of high quality imported from the UK.

Our technicians are highly experienced. Crack repair and repair of damaged casting components can also be executed while sailing the Vessel.

Replacement of Broken casting by new one- metal stitching
Replacement of Broken casting by the new one- metal stitching
Inspection window reapir by metal lock
Inspection window repair by metal lock

Following is the process of metal locking, metal stitching, and its advantages.

Process of Metal Locking, Metal Stitching:

The Metal Stitching process is accepted as the method of repairing all cracked, broken and damaged casting in cast iron, aluminium and steel.

metal stitching of broken casting
Metal stitching of broken casting
Repair of Damaged Window of engine block
Repair of the Damaged Window of the engine block

The Stitching Process:

  • At first, visible and invisible cracks are identified.
  • The parts are clamped together to bring the parts to their original position.
  • A rectangular hole is made across the fractured portion.
  • This hole is made by drilling and chipping.
  • The Master lock, a large rectangular key of special metal is inserted into the hole.
  • Locking Pins are inserted alongside the master lock to provide a tight and secured master lock.
  • A length of metal stitching keys is inserted on the sides of the master lock to prevent the locking pins from falling out when the casting is subjected to 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
repaire of Crack measuring 1400mm x 1140 mm
repair of Crack measuring 1400mm x 1140 mm
Damged engine repair by metal locking process
Damaged engine repair by metal locking process

Crack Repair in Grey Cast Iron | Aluminium and Cast Steel Components 

It is observed that due to accidents or continuous running of the engine cracks develop in grey cast iron, aluminium, and Cast Steel Components. There is no need for disassembly of the equipment and getting it repaired by the welding process. We undertake the repair of cracks and badly damaged components by metal stitching and metal lock surgery process.

This method of crack repair is proven and is widely used all over the world. The services of crack repair in Grey Cast Iron, Aluminium and Cast Steel Components by metal stitching and metal locking are extended by us worldwide on a 24*7 basis.

We have a dedicated team that undertakes crack repair of cast iron and repair of damaged casting. Special pneumatic tools, locks and keys are used to execute the repairs. All the jobs of crack repair in Grey Cast Iron, Aluminium and Cast Steel Components executed by us are guaranteed for satisfactory performance.

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, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Advantages Of Crack Repair By Metal Stitching And Metal Locking

Metal Stitching Engine Block RA Power Solutions Pvt. Ltd. undertakes repair of crack casting which is broken into pieces by metal stitching and metal locking process. The company has executed successfully the repair of more than 600 nos. of cracked engine blocks, cast iron cold metal stitching, turbine casing, turbocharger casings, gearbox housings, etc. in the last 4 decades.

It is proven that the repair of cracks in cast iron or cast steel, castings is successful by metal stitching and metal locking process in comparison to the old welding process which was followed.

The advantages of crack repair by metal stitching and metal locking process are as follows:

  • Repair of cracks in the engine block, cylinder heads, and turbines can be undertaken by metal stitching and metal locking process on-site without disassembly of the equipment. This process of repair saves downtime and is cost-effective.
  • Metal lock and metal stitching process provide an excellent expansion joint for engine parts like cylinder liners, crankcases, and cylinder heads which are subject to thermal and mechanical stresses. The main advantage of the repair of cracks by metal stitching and metal locking process is that no stresses are developed and the alignment is maintained with original surfaces as the lack of heat produces no distortion.
  • The procedure and process of repair of cracks by metal stitching and metal locking are accepted by various classes and inspection agencies.
  • The process of metal locking and metal stitching is cold, no heat is generated and in most cases, there is no need to replace heavy and expensive parts.

Metal Stitching Of Engine Block

RA Power Solutions Pvt. Ltd. undertakes the repair of cracked or damaged engine blocks by metal locking, metal stitching, and metal surgery process. It is possible to undertake the repair of damaged or cracked engine blocks onsite manufactured out of the following base metal:

  • Cast steel
  • Aluminium casting
  • Ductile iron
  • Cast iron

With the introduction of modern technology and processes, the repair of cracks in heavy-duty cast iron components by welding is not recommended as the welding process generates heat and unwanted stresses in the cast iron component resulting in serious damage to the cast iron component.

The engine block repair by metal locking, metal stitching of engine block, and metal surgery process is the proven method of repair of cracks or damaged heavy components. In most cases after engine block repair, no machining is required.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions). He has forty years of experience in the field of engine repair and is a technical adviser to various shipping and heavy industries based all over the world.

For more information on the Metal lock and metal stitching, metal locking process, metal stitching of castings, and metal stitching of engine block and cold metal stitching, crack repair by metal stitching, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Metal Stitching and Metal Locking Process
Metal Stitching and Metal Locking Process
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