Tag: crankshaft

Machining and reconditioning of worn out components like Crankshaft, rotorshaft, turbineshaft, alternator shaft, compressors, etc. is under taken on site without dismantling the equipment. This saves the down time cost and transportation.

Effective process of machining and reconditioning on site especially for the components that are of heavy weight and of enormous size of large Diesel Engine, Generators, Compressor, Crankshaft, Turbine, Rotating Equipment etc.

Revolution in Crankshaft Grinding- RA Power Solutions

revolution in engineering 11

Good News for Shipping Companies, Power Plants and Repair Workshops.

Crankshaft grinding machine up to 700 mm diameter is designed, developed and manufactured by RA Power Solutions. Machine is having following features:

Crankshaft Grinding Machine Design: Machine is portable; light weight and can be carried to the site. Nowadays, there is no need of disassembly of complete engine.

Operation of Crankshaft grinding machine: The machine is operated pneumatically or by electrical motor. The design is so simple and machine can be easily operated by a skilled technician.

Quality: Crankshaft grinding machine is capable of maintaining close tolerance in terms of taper and ovality up to 20 microns and can also achieve the surface finish as per the International standards.

Training: RA Power Solutions Pvt. Ltd. provides training to the clients, and technicians for the duration of 3 days. The assembly, operation, and maintenance of the machine are explained.

Cost of Machine: Presently, shipping companies and power plants having high-capacity diesel generating sets have no option but to call for technicians from the companies based in Norway, Singapore, UK and various countries by paying exorbitant amount and travel expenses. The Crankshaft grinding machine is manufactured by RA Power Solutions is very reasonably priced and the cost can be recovered in 1 or 2 jobs of repairs.

We have supplied more than 60 In situ crankshaft grinding machines all over the world which are performing satisfactory.

Disassembly of Crankshaft Grinding Machine with Pneumatic Motor
Disassembly of Crankshaft Grinding Machine with Pneumatic Motor

Disassembly of Crankshaft Grinding Machine
Disassembly of Crankshaft Grinding Machine

Assembly of Crankshaft Grinding Machine in Progress
Assembly of Crankshaft Grinding Machine in Progress

Assembly of Crankshaft Grinding Machine with Pneumatic Motor
Assembly of Crankshaft Grinding Machine with Pneumatic Motor

 

Packing in Progress- Insitu Crankshaft Grinding Machine
Packing in Progress- Insitu Crankshaft Grinding Machine

Onsite Crankshaft Grinding Machine Ready for Dispatch
Onsite Crankshaft Grinding Machine Ready for Dispatch

WORKING OF ONSITE CRANKSHAFT GRINDING MACHINE (400-450mm)

For more information on revolution in crankshaft grinding contact us today by please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Importance of Hardness in Crankshaft – RA Power Solutions

The hardness of crank pin and main journal of crankshaft is of great importance for the satisfactory performance of the crankshaft. In case of low RPM diesel engine, the crankshafts are not hardened and the hardness is achieved by the metallurgical properties. In case of high RPM engine, crankshafts are hardened. The most common process followed by the manufacturers of crankshaft grinding machine is to go for induction hardening.

CRANKSHAFT

Due to seizure of bearings, the temperature goes high and the hardness increases. The increase in hardness makes the crankshaft brittle resulting to the development of crack.

RA Power Solutions Pvt. Ltd. suggests that whenever seizure of bearings takes place it is important that crankshaft hardness is checked and presence of crack should also be checked either by dye penetrant process or Magnaflux.

In cases of this form of failure, it is typically seen that hardening occurs, which results in the development of hard spots and hard areas next to the soft sections, even up to the scale of 700 HB. According to the manufacturer’s specifications, the extraordinarily high increase in the crankpin journal hardness is not desirable so the crankshaft is heated up and annealed.

Onsite Crankshaft Grinding in a Power Plant
Onsite Crankshaft Grinding in a Power Plant
Crankpin After Repair by Crankshaft Grinding Machine
Crankpin After Repair by Crankshaft Grinding Machine

In order to reduce the hardness and bring it to the limits specified by the manufacturers, RA Power Solutions has undertaken the annealing process in-house and have also availed the services of leading well-known European companies offering annealing services.

Author is Managing Director of RA Power Solutions Pvt. Ltd. having almost four decades of hands on experience in providing consultancy, repair and supply of new and reconditioned crankshafts for high capacity diesel engine. More than 2000 crankshaft have been successfully repaired all over the world, some of which were even rejected by reputed engine manufacturers.

For more information on onsite crankshaft grinding, grinding of crankshaft, crankshaft repair of high-capacity diesel engine email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.