Lock and Stitch Cast Iron Repair by RA Power Solutions Pvt. Ltd.

Repair of cracks developed in commonly used industrial castings and metal is possible to repair by cold method called lock and stitch. It is also known as metal stitching and metal locking. In case of cast iron equipments and parts damaged in to pieces.

Crack Repair by Lock and Stitch Method
Crack Repair by Lock and Stitch Method

RA Power Solutions Pvt. Ltd. undertakes repair by lock and stitch process which is cold method as no heat is generated. Crack repair by lock and stitch method in cast iron is proved to be of great success in comparison to the crack repair by welding.

In case of critical cast iron components like engine block, main journal housings, cylinder heads, turbine casings crack repair by metal stitching is highly recommended as it does not develop any misalignment of the casting or shrinkage. We undertake crack repair of cast iron for last more than 37 years on time, within budget and with experienced technicians.

Cast iron repair by metal stitching and metal locking process have following main advantages

I) Repair of broken casting or crack developed in casting irrespective of its length is possible on site without dismantling the equipment.

II) Saves replacement of parts or equipments in totality and reduces downtime.

III) Cast iron repair by metal stitching and metal locking is the only process which restores strength in cast iron beyond the original casting.

IV) Metal stitching and metal locking is the only method known to be successful in replacing of the large pieces of broken casting with new piece.

V) Metal stitching and metal locking is the process which caters to heavy industry.

RA Power Solutions Pvt. Ltd. is the only company which can undertake crack repair by Lock and stitch method while vessel is sailing.

Complete Piece Replaced by New Casting
Complete Piece Replaced by New Casting
Engine Block of MAN Diesel Engine Broken Ito Pieces
Engine Block of MAN Diesel Engine Broken Ito Pieces

 

Metal Stitching of Forging Press - Crack Measuring 230 inches
Metal Stitching of Forging Press – Crack Measuring 230 inches
Repair of Engine Block of Yanmar Engine on Vessel
Repair of Engine Block of Yanmar Engine on Vessel

Lock and Stitch Cast Iron Repair

Heavy castings like turbine casing, gearboxes, engine block, heads and heavy cast iron parts  need not to be disassembled in case of development of crack in casting or breakage of casting in to pieces due to accident.

Cold metal stitching and metal locking process is used to repair cracks in cast iron. The process of crack repair by metal stitching and metal locking does not require any welding and generation of heat. The time has proved that the crack repaired in casting by metal stitching and metal locking is far stronger and more durable in comparison to the repair of crack by welding process.

Repair of Broken Casting by Metal Stitching Process
Repair of Broken Casting by Metal Stitching Process
Broken Engine Block of Yanmar Engine
Broken Engine Block of Yanmar Engine

In most of the cases crack repair in casting is possible onsite and there is no need of transporting the heavy cast piece to the workshop. RA Power Solutions Pvt. Ltd. undertakes crack repair by metal stitching and metal locking process for last more than 3 decades and have executed number of repairs successfully all over the world.

RA Power Solutions Pvt. Ltd. is the first company which can undertake repair of high capacity engine blocks, turbine casings, cylinder heads and all cast parts installed on the vessel while it is on move.

Assembly of Broken Pieces of Engine Block
Assembly of Broken Pieces of Engine Block
Metal Stitching of Engine Block in Process
Metal Stitching of Engine Block in Process

 

 

 

 

 

 

 

The lock and stitch cast iron repair executed by us is guaranteed for satisfactory performance. We are cost effective and priced lowest in the industry.

Metal Stitching and Metal Locking of Engine Block
Metal Stitching and Metal Locking of Engine Block
Engine Block After Repair
Engine Block After Repair

Metal Stitching and Metal Locking of Engine Block

Engine blocks, casting and most of the parts are manufactured of common material like cast iron. Cracks developed in cast iron parts are most difficult to undertake repair by welding process as it needs pre-heating of the cast iron prior to the welding. In certain cases it can cost additional stresses resulting to the damage of casting.

Material Used in Metal Locking and Metal Stitching Process
                                  Material Used in Metal Locking and Metal Stitching Process

It is proven that metal stitching and metal locking has advantage of repairing cracks in cast iron casting due to cold process using different profile and material of stitching pins and locks without applying any heat as in case of welding.

RA Power Solutions Pvt. Ltd. undertakes metal stitching and metal locking of casting and has successfully repaired various major components of high capacity diesel engine.

Application includes repair of Engine Block, Cylinder Head, Generators. Turbo Chargers, Turbine Casing, Gear Box Housing,     Pump Casings, Compressor Crank Cases ,Forgings Hammer, Lathe / Press/ Milling/Boaring etc .M/c. Other all Casting Equipments etc. 

In last 36 years more then 650 jobs of crack repair have been successfuly   executed.

Stitching Pin Used in Metal Stitching Process
Stitching Pin Used in Metal Stitching Process
Metal Stitching Done in Broken Area of Generator
             Metal Stitching Done in Broken Area of Generator

 

Metal Stitching of Crack Casting

In case of crack developed in casting of mechanical equipments the repair of metal stitching and metal locking is proved to be the best and successful process. In case of engine block and turbine casings, heavy castings is used in mechanical equipments. It is quite difficult to replace them due to cost, time factor and interchangeability issue.

Metal Locking of Wartsila Diesel Engine
Metal Locking of Wartsila Diesel Engine

The repair of cracks by metal stitching and metal locking is a cold process. No heat is generated and the same original profile is maintained. In case of cracks developed in housing of engine block, the crack repaired by metal locking and metal stitching is highly recommended as there is no distortion in the central line of the housing takes place.

Metal Stitching of Jenbacher Engine Block
Metal Stitching of Jenbacher Engine Block
Metal Stitching of Jenbacher Engine Block Under Process
Metal Stitching of Jenbacher Engine Block Under Process

RA Power Solutions have experienced technicians to undertake metal stitching and metal locking process with guarantee.