Metal Stitching | Metal Locking | Crack Repair | Metal Surgery

RA Power Solutions having more than forty years of experience in field of repair and maintenance of high capacity engines, understands the importance of the parts.

In case of damage of engine components or crack, RA Power Solutions undertakes repair onsite by metal stitching or metal locking process. We are considered to be the leaders in this field as we use the master lock, master piece, keys and consumable of high quality imported from UK. Our technicians are highly experienced. Crack repair and repair of damaged casting components can also be executed while sailing of the Vessel.

Replacement of Broken casting by new one- metal stitching
Replacement of Broken Casting by 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 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 Damaged Window of engine block

 

 

 

 

 

 

 

 

 

The Stitching Process
1. At first visible and invisible cracks are identified.
2. The parts are clamped together to bring the parts in original position.
3. A rectangular hole is made across the fractured portion.
4. This hole is made by drilling and chipping.
5. The Master lock, large rectangular key of special metal is inserted into the hole.
6. Locking Pins are inserted alongside the master lock to provide a tight and secured master lock.
7. A length of metal stitching keys are inserted on the sides of the master lock to prevent the locking pins to fall out when the casting is subjected to high vibrations.

Advantage of Metal Stitching
1. No heat stress are induced
2. No Distortion occurs
3. In many Instances machining is not required
4. Invaluable in emergency situations
5. Reduces downtime
6. Gas/ Liquid proof repair

metal Stitchining of Cylinder Head
Metal Stitching of Cylinder Head

For more information, please email us on info@rapowersolutions.com or call us on +91-9582647131

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

 

RA Power Solutions having more than forty years of experience in field of repair and maintenance of high capacity engines, understands the importance of the parts. In case of damage of engine components or crack, RA Power Solutions undertakes repair onsite by metal stitching or metal locking process. We are considered to be the leaders … Continue reading “Metal Stitching | Metal Locking | Crack Repair | Metal Surgery”

Metal Locking and Metal Stitching by RA Power Solutions, India

Damaged engine parts, construction equipment and all mechanical equipments can be repaired successfully by metal locking and metal stitching process in case of crack or extensive damage of casting due to accident.

The repair of crack or damage casting by using traditional welding method is not successful for repair of cast iron and alloy cast metal components.

RA Power Solutions has expert team of technicians who are trained to execute repair of crack and repair of damage casting of large equipments by metal stitching and metal locking process.

Broken Area of Generator
Damaged Area of Engine Block Measuring 14 inches X 12 inches
Metal Stitching of New Casting Piece in Broken Area
New Piece of Casting Metal Stitched

The repair of crack by metal lock and metal stitching process has following advantage:

I) In case of crack or damaged component, there is no need of sending it to designated workshop. Our technicians visit the site and undertake repair of crack by metal locking and metal stitching process.

II) Metal lock and metal stitching is a proven method of repair of crack. It’s is a permanent solution, cold process of crack repair and no heat is generated as in case of welding.

III) In case large portion of casting is damaged it is possible to replace it with the new casting having same design, profile and metallurgical properties by metal stitching and metal locking.

We provide services of crack repair and repair of damage casting for last 4 decades all over the world. We are cost effective and execute the repairs with guarantee.

Broken Engine of Wartsila Diesel Engine
Damaged Inspection Window of Wartsila Crankcase
Engine Block of Wartisla After Metal Stitching Process
Inspection Window of Crankcase under Repair by Metal Stitching/Metal Locking

Only company offers metal stitching and metal locking services while vessel is sailing.

Contact Us for more information.

 

Damaged engine parts, construction equipment and all mechanical equipments can be repaired successfully by metal locking and metal stitching process in case of crack or extensive damage of casting due to accident. The repair of crack or damage casting by using traditional welding method is not successful for repair of cast iron and alloy cast … Continue reading “Metal Locking and Metal Stitching by RA Power Solutions, India”

Metal Stitching

Complete Piece Replaced by New Casting (Metal Stitching)
Complete Piece Replaced by New Casting (Metal Stitching)

Crack in cast iron engine components is developed due to stress or accident. It is not always financially feasible to replace the engine components which develop cracks like engine block, cylinder head, cylinder liner, turbo charger casing and other parts. The delivery time and logistics arrangement also take time resulting to the delay in re-commissioning of engine.

RA Power Solutions undertakes repair of crack or broken components by metal stitching and metal locking process. This is a cold process which is followed for the repair of crack. No heat is generated and no stresses are developed. In metal stitching and metal locking process of repair of crack keys and locks of special alloys are used.

Special Keys Used in Metal Stitching
Special Keys Used in Metal Stitching

We have technicians with over 40 years of experience in repair of broken casting and cracks. RA Power Solutions is the only company which can undertake repair of broken casting and crack by metal stitching and metal locking process on board a vessel while it is sailing. All our technicians undertaking metal stitching and metal locking repairs have valid seaman book. We have successfully undertaken repair of cracks and broken casting of following engines which are performing satisfactory.

Wartsila , Daihatsu , Caterpillar , MAN B&W, MAK , Sulzer , Bergen , Detroit Diesel , Stork Werkspoor , Pielstick , Deutz , Yanmar , MTU , Cummins , Nohab Polar , Mirrlees Blackstone, Caterpillar , Mitsubishi , Yanmar , Daihatsu and many more.

Metal Stitching by Using Broken Pieces of Engine Block
Metal Stitching by Using Broken Pieces of Engine Block
Cracked Cylinder Liner
               Cracked Cylinder Liner

Crack in cast iron engine components is developed due to stress or accident. It is not always financially feasible to replace the engine components which develop cracks like engine block, cylinder head, cylinder liner, turbo charger casing and other parts. The delivery time and logistics arrangement also take time resulting to the delay in re-commissioning … Continue reading “Metal Stitching”

Advantage of Metal Stitching Process

RA Power Solutions Pvt. Ltd. undertakes repair of crack casting which is broken in to pieces by metal stitching and metal locking process. The company has executed successfully repair of more than 600 nos. of crack engine block, turbine casing, turbo charger casing, gearbox housings, etc. in last 3 decades.

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

Advantages of crack repair by metal stitching and metal locking process are as follow:

I) Repair of cracks in 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.

II) Metal stitching and metal locking process provides an excellent expansion joint for engine parts like cylinder liners,crankcase, cylinder heads which are subject to thermal and mechanical stresses. The main advantage of 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.

III) The procedure and process of repair of cracks by metal stitching and metal locking is accepted by various classes and inspection agencies.

IV) The process of metal locking and metal stitching is cold, no heat is generated and in most cases there is no need of replacement of heavy and expensive parts.

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

RA Power Solutions Pvt. Ltd. undertakes repair of crack casting which is broken in to pieces by metal stitching and metal locking process. The company has executed successfully repair of more than 600 nos. of crack engine block, turbine casing, turbo charger casing, gearbox housings, etc. in last 3 decades. It is proven that repair … Continue reading “Advantage of Metal Stitching Process”