Metal Stitching and Metal Locking Process

It is highly recommended to undertake repair of crack castings of engine block, cylinder heads, turbine casing and cast iron parts by metal stitching and metal locking process.

Insertion of Casting Piece into Engine Block Area

Metal Locking Under Process

Metal Locking of Casting

Metal Stitching of Jenbacher Engine Block

Metal Stitching of Jenbacher Engine Block

Metal Stitching-Locking Process

 

It is a cold process, no stresses or heat is generated. RA Power Solutions is undertaking crack repair by metal stitching and metal locking process for last more than 3 decades and have executed more than 500 projects successfully all over the world.

We have highly skilled engineers who can easily perform metal locking and metal stitching process on following make of engines: MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Nohab, Daihatsu, Yanmar, Bergen, Crepelle, Niigata, Himsen, Allen, Stork, MWM, Hanshin, Caterpillar, Ruston, Paxman, Mirrlees, Alco, Fiat, ABC, Crepelle, SKL , etc

Rebabbitting of White Metal Bearing

Manufacturing of Motor Bearing

Rebabbitting of white metal bearing is required when the bearing develops taper, ovality and white metal is worn out. Rebabbitting of white metal bearing up to 1500 mm bore size is undertaken by RA Power Solutions. All the parameters like presence of cracks, hard spots in steel lining are checked prior to doing rebabbitting.

The selection of grate of white metal is done based on the load characteristics of the bearing, RPM and application. The rebabbitting of white metal is done by centrifugal process. This ensures strong bonding between the base metal and the white metal. All the bearing are subject to dimensional inspection and bonding by ultrasound process.

Thrust Bearing Pad

Rebabbitting of following bearings is undertaken:

a.  Turbine Bearing
b.  Alternator Bearing

White Metal Bearing

c.  Engine Bearing
d.  Pedestal Bearing
e.  Big End Bearing
f.  Thrust Pad Bearing
g.  Crankshaft Bearing
h.  Bush Bearing
i.   Flanged Bearing
j.  Steam Turbine Bearing
k.  White Metal Rotor      Bearing
l.   White Metal Bearing
m. Big End Bearing
n.  Impeller Bearing
o.  Turbine White Metal Bearing
p.  Alternator White Metal Bearing
q.  Pump White Metal Bearing
r.  Crankshaft White Metal Bearing
s.  Spherical Bearings

Used Cylinder Heads

Cylinder Heads

Cylinder heads of Wartsila, Paxman, MAN-B&W, MWM, Sulzer , Mak, Deutz, Mitsubishi, Caterpillar, Daihatsu, Bergen, Himsen, Allen, Stork, Fiat, SKL, Ruston, Crepelle, Mirrlees, Alco, Crepelle, Yanmar,  Pielstick, Hanshin, Nohab etc are available in stock.
 

The used cylinder heads are procured from the power plants and ship breaking yards and they are transported to our works. Cylinder heads are subject to crack detection test by MPI procedure, valve seat and valve guides are replaced wherever required.

After reconditioning cylinder heads are subject to hydraulic pressure test. We can also supply new cylinder heads.

Insitu Rotor Shaft- Inspection, Grinding and Polishing

 

Onsite Rotor Shaft Grinding and Polishing

Rotor shaft is mainly placed on white metal bearing. Due to continuous running it is observed that taper, ovality and rough surface is developed. It is important that during the major overhauling or after certain hours of operation as suggested by manufacturers rotor shaft is inspected.

RA Power Solutions has technicians who are qualified and experienced t o undertake onsite inspection of rotor shaft, alternator shaft, turbine shaft, alternator shaft and pump shaft. The rotor shaft inspection broadly includes crack detection by magnetic particle inspection (MPT), hardness check and dimensional inspection. In case any abnormalities are observed, RA Power Solutions technicians undertake onsite grinding and onsite polishing of rotor shaft maintaining tolerances and surface finish as per the manufacturers. 

Marine Engine Spare Parts

RA Power supplies new marine spare parts of all makes of engine like MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Himsen, Allen, Stork, Fiat, MWM, Hanshin, Caterpillar, SKL, Ruston, Paxman, Crepelle, Mirrlees, Alco, ABC, Nohab etc.

Second-hand and reconditioned parts like crankshaft, Alfa Laval Heat exchangers, compressor , Centrifugal Pumps, Mechanical Seal, Grundfos Pumps, Turbocharger, Electric Motors, connecting rod, etc. are also supplied with guarantee.

Diesel Engine Cylinder Liners

RA Power manufacturers cylinder liners of most popular make and models of diesel engine. The cylinder liners are centrifugally cast and metallurgical composition is maintained as per the manufacturers.  The cylinder liners can also be developed and manufactured as per the cylinder liner drawing or a sample. 

Cylinder Liners

We also supply used, reconditioned cylinder liners supported with calibration report and performance guarantee. Models for which we manufacture cylinder liners are MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Mitsubishi, Caterpillar, Daihatsu, Bergen, Niigata, Himsen, Allen, Stork, Fiat, MWM, Hanshin, SKL, Ruston, Paxman, Crepelle, Yanmar , Mirrlees, Alco, ABC, Crepelle, Pielstick, Nohab etc.

Rebabbitting of Bearings- RA Power Solutions

 

Re Babbitting Bearing

It is recommended to go for rebabbitting of bearings after certain hours of operation of crankshaft, rotor shaft, turbine shaft, pump shaft and alternator shaft. RA Power Solutions undertakes rebabbitting of white metal bearings. The white metal composition is maintained as per the original Babbitt metal of bearing. The rebabbitting of white metal bearing is done by centrifugal process which ensures strong bonding between the white metal and the base metal of the Babbitt white metal bearing.