Marine Engine Maintenance,Diesel Engine Repairing,Diesel Engine Maintenance,Marine Engine Repairing

We have with us more than three decades of experience in the field of providing our clients with on site crankshaft grinding services. With all our experience, we have developed crankshaft Repair On-site Machine, which can reduce the Crankshaft repair time by almost 40% thus; reducing the down time of the engine. The salient features of on site crankshaft grinding services are as follows:

Fast Repairs
The new generation equipment can machine and polish in one setting itself as there is no need of separate tools for grinding and machining.
The machine drastically reduces the setup time & minimizes the possibility of misalignment of the Crank Pin & avoiding the need to set it up 2 or 3 times
Only one tool is needed for grinding and polishing.
Tried & tested, the new generation tool reduces the repair time.
Able to undertake In-situ Grinding of Crank Pins, having diameter ranging from 60 mm to 700mm.
Specially designed In-situ Crankshaft Grinding Machine for repair of parts, without dismantling the equipment
Tools and drawings for most of the Engines are readily available.
Trained engineers and mechanics, skilled the art of in-situ grinding of Crankshafts

We have been able to accomplish repairs of over 10,000 shafts in India & Abroad.

We are offering to our clients, line boring and repairing facilities at highly competitive prices. We have the capability of machining two or more bores in line up to the length of 10 meters within close tolerances of 30 microns. The salient features of line boring and repairing services are as follows:

The equipments are latest in design and pneumatically operated with the motors imported from Europe.
Catered to diameters ranging from 50 mm to 1000 mm.
Both the upper and lower liner landing area can also be machined to remove the damage of the face and the bore.
Application Area:
Compressor Bearing Housings
Propeller Shaft Journal Housing
Gas Turbines & Diesel Engines-
- Cam Shaft Housing,
- Main Bearing Housings,
- Liner Landing Area Bores

We offer connecting rod repair The salient features of connecting rod repair services are as follows:

Rehabilitation - Connecting Rod
Ultra-sonic testing to determine invisible damages
Checking of straightness on DRDO equipped boring machine
Grinding and restoration of damaged serration
Internal grinding of big end and small end bores to remove ovality
Accuracy and finish achieved as per OEM specifications.

We undertake the crankshaft rebuilding, cylinderical shafts etc, which are ideal for correcting manufacturing errors, to repair an obsolete part or excessively worn out part. We pay utmost attention to details like cleaning, surface preparation, spraying and finishing. Our crankshaft rebuilding services ensure that replacement cost is reduced and savings of 50% - 90% is there.

RA Power is known as the standard of excellence for audit & inspection services of new and second hand engine and parts.

We perform activities of technical consultation, inspection, supplier qualification, besides site Q.A. / Q.C. service in the Power Generation field.

We can ensure timely and highly qualified actions all over the world. We undertake audit & inspection services at the supplier workshop to verify that all the dimension and tolerances are in accordance to the manufacture specification, besides our technical skilled engineers can develop Q. C. P. and procedure according to the contract.

Complete inspection of main and auxiliary engine.
Inspection and certification of parts after repair
Inspection and certification of parts sourced from ship breaking yards.
All non-destructive tests on site.

RA Power Solutions Pvt. Ltd. a world class engineering company supplying a wide range of high precision fully machined components and diesel engine parts and assemblies to OEMs across the globe. Our diesel engine parts includes:

Valve Tappets/Lifters:

Mechanical lifters made from Chilled Cast Iron & Alloy Steels, are ensured for best workmanship and perfect blend of metallurgy. Correct hardness, pro file & surface finish are ensured.

Inlet /Exhaust Valves:

Inlet /Exhaust Valves are offered from a wide range of materials, such as: EN24(BS817M40), EN52(BS401s45),21-4N(BS349S52) etc. made by metal gathering upset forging process and Bimetallic valves are Friction welded. Various process like Chrome flash on stem, Stellite on seat and tip area, Nitriding/Tuftriding, are also offered.

Valve Guides:

Cast iron with correct specification, heat treated for toughness and machined with high precision. Closely maintained inner/outer diameter with highly smooth inner surface and fine grinded outside ensures correct fitment.

Rocker Arms:

Rocker Arms are made form Carbon Steels, Case Hardening Steels, or as per specifications by forging & Investment Casting process. Rocker Arms with chilled surface profiles are also offered. Correct hardness and Heat Treatment cycle with accurately machined parameters ensures trouble-free performance

Rocker Shafts:

Rocker Shafts of various types are made from alloy steels. Induction hardened rocker shafts are also offered. Precisely controlled dimensions well within tolerances, ensures correct fitment of the complete rocker assembly.

Variety of Products:

Wide range of items like Chain Sprockets, Sintered Bushes, Bimetal Bushes, Push Rods, Valve Retainers, Valve Cups, Valve Seat Insert, Zinc Alloy Cam Shafts Bearings, Chain Tensioner etc. are developed.

Cast Components:

Components like Oil Pump Body, Water Pump Cover etc. are supplied in Aluminum Gravity and Pressure Die Casting & Graded Cast Iron. Various parts made from Aluminum and Cast Iron are developed as per specifications/samples.

Valve Guides:

Cast iron with correct specification, heat treated for toughness and machined with high precision. Closely maintained inner/outer diameter with highly smooth inner surface and fine grinded outside ensures correct fitment. Non ferrous Valve Guides made from Phosphorus Bronze and special alloys are also offered.

Valve Seat Inserts:

We have developed various types of Valve Seat Inserts, made from Nickel, Chrome, Cobalt and Iron based alloys - that display superior wear and heat resistant properties.

Liners & Pistons:

We have developed a large range of Cylinder liners, made from Centrifugal castings.
Special compositions are maintained to ensure wear resistant properties at the same time enhancing lubrication.

Large liners up to bore size of 600 mm. are developed.

Forged/Cast Iron Parts:

Various components are developed as per buyer's specifications/samples- made by Forging, Gravity castings, Pressure Die Casting, Investment/Lost wax casting process.

Items We Trade:

We are also one of the largest stockist and suppliers of Engine Parts obtained from Ship Breaking Yards situated all over India.

We stock Brand New spares as well as Used/Reconditioned spares for all the Engine types mentioned above.

Such parts include heavy items such as:

Crankshafts
Cam Shaft
Bearings
Cylinder Covers/Heads
Turbo Chargers
Governors
Air Compressor
Refrigeration Compressors
Connecting Rods etc.

RA Power Solutions have associated ship breaking companies based in Alang ship breaking yards, west coast of India and Bangladesh. We are supplying and export diesel and marine engine along with diesel and marine spare parts.

The company specializes in stocking of engine stores as following:

Main engine and spare parts
Auxiliary engine and spare parts
Complete D.G. Set
Turbo charger and spare parts
Crank shaft, Engine Block, Cylinder head, connecting rods and major spare parts
Air compressor

Our being a engineering company, we ensure that diesel and marine engine along with diesel and marine spare parts offered to the client are thoroughly inspected.

A report is submitted covering all the major sub assemblies supported with photographs which facilitate client to take the decision.

Cylinder liner rehabilitation or deglazing, boring and honing is under taken by us using internationally recognised high quality machine specially designed for diesel engines. Our cylinder liner rehabilitation has the following advantages:

Cylinder liner surface imperfections can be rectified and prevented by regular honing. RA Power specially designed equipment which can notably increase the service life of both liners and rings.

Main Features:

Reduce risk of blow – by scuffing and seizure.
Rectifies taper ovality scuffing and microseizure.
Criss Cross surface pattern can be maintained as per the engine manufacturer recommendation reducing the lub oil consumption.
Increases life of cylinder liners and piston rings.
Removes wear edges safely.
Liner sitting area grinding in engine block.

Metal stitching is a precise mechanical method of making permanent repairs to broken casting and machine parts.

No heat is used in metal stitching process, thus no stresses are introduced and no post-repair machining is necessary to correct misalignment and warpage. Since there is no heat, metal locking repairs can be made in restricted areas where flames or welding arc is prohibited Repairs are done on location in the plant, without the necessity of major dis-assembly.

Maintaining production and reducing down time of broken equipment presents many new challenges. Solutions are arrived at after a careful analysis and then applying our experience to make a proper, dependable repair. The quality and craftsmanship thus achieved have earned for us the recommendation and endorsement of equipment manufacturers, insurance underwriters and inspection services.

Procedure

Drilling fixture is attached of right angles to the crack. A hole pattern is drilled and this is repeated at intervals from ¾ to 1 ¼ inches apart.

Metal between each drilled hole is removed by ripping it away with pneumatic tools to form a slot. The stock thus removed is narrower than the drilled hole, thus forming a serrated opening.

Preformed locks of high tensile alloy are inserted in to the slot. These locks are peened into the slots, one on top of the other, to a depth limited by the casting thickness and determined by the strength required.

After the locks are installed, holes are drilled, tapped and threaded, fasteners are applied. These are spotted along the entire length of the crack, overlapping one another. Their purpose, in part, is to fill the fracture with new metal and provide a pressure seal.

Entire repair area is peened flush and finish ground.

In case of the broken casting, the new casting is manufactured in accordance to the metallurgy of the parent casting. The assistance of pattern maker is taken to manufacture the casting strictly as per the profile of the damaged area.

The necessary care is taken even for aesthetic look of the new casting which fully gets merged with the old one.

We are offering In situ machining. Machining of worn out components is under taken at site with out dismantling the equipment. This saves the down time cost and transportation.

Effective process of repair on site especially for the components that are of heavy weight and of enormous size.

Highly skilled engineers ensure accurate In situ machining with minimal lead times to provide cost effective service.

In association with the workshop, specialist welding repairs of plant and machinery including, Mig, Tig Arc, Fusion and Gas welding can be carried out both in-house or on-site.

Shaft Recovery – Orbital Machining/Welding for Bearing Journals.
Milling (large and small)
In Line Boring (Compressors, turbines, diesel engines)
Keyway Machining
Flange Facing (larger and small)
Drilling & Tapping
Returning holes to standard using Threaded Inserts.
Steel Rolling Mill Stand machining

RA Power Solutions understands the requirement of undersized and special engine bearings after the repair of crank shaft. It is observed that most of the time the undersized CR and main journal bearings are not available with the manufacturer of the diesel engine, thus delaying the commissioning of the engine.

We offer engine bearings that assure quality, long life and are found in engines in every market sector around the world. We have access to branded bearings from Europe, Japan, Korea, Singapore including bearing manufacturers like Federal Mogul, Miba etc.

Customers rely on us because of our ability to develop innovative technologies designed to solve a problem.

Our engine bearings have the following main features:

Excellent load capability
Optimal adaptability to engine design
Maximum durability
Resistance to wear and corrosion

From our own extensive stock, we can supply a full range of popular makes of engine bearings at highly competitive prices. We specialize in standard, undersized and special size of bearings.