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Speedo Flexible Shaft Grinders
By Mr. A.G Gawli
The flexible shaft grinders transmit power from the motor to the grinding head through a flexible metal shaft that is several feet long.
Flexible Shaft Grinders are widely used in most of the foundries producing Cast Iron, Steel casting, forging shop, various fabrication shops and rubber retreading. These are used for finishing operations to remove unwanted portion of the Job produced. It is most convenient method to finish the heavy or lengthen jobs, in which case it is not possible to move the job or to handle for grinding. The flexible shaft grinders give freedom to the operator to finish the job without handling it. The constant speed, high cutting speed, can be used in restricted areas are some of the added advantages of these grinders.
These are having very less maintenance (Rotary mechanism) compare to Pneumatic Tools with Air Compressor (in most of the cases reciprocating mechanism) and required about 1/3 of power. Also, it gives freedom of using 1 or 1.5 H.P., instead of 20/30/50 H.P. compressor.
As, it is having an Induction motor no frequent changing of armature & carbon brush.
Flexible shaft power tools give you the ability to have a huge amount of power and torque right at your fingertips without having to hold a heavy tool. The heavy motor sits on the ground or on a dolly and transmits the energy and power through a cable that attaches to a hand-held tool. Another great concept of these flexible shaft power tools is that the hand-held tools can be a straight, angle or belt grinder.
Flexible shaft grinders can be fitted with cutting or grinding wheels. Is handy for porting of
engine.
Flexible shaft grinder are for deburring, grinding and polishing. Flexible shaft grinders come as bench top units, hanging, with wheels, and so on, with shaft diameters up to one inch and up to 2.5 horsepower. 6 different configurations!
Flexible shaft grinder is composed of an electric motor to which is attached a flexible shaft. Inside that flexible shaft is a drive shaft that ends in a device that bolts a grinding wheel to it. The whole motor is usually bolted onto a dolly with wheels on it.
A variety of jobs usually mean a whole set of different machines and tools. Not so with flexible shaft machines. It has universality, adaptability and convenience together with full power – from the most precise work in mobile operation to heavy work under extremely difficult conditions
Flex-shaft grinders use stones like die grinders, but by shifting the motor away from the hand unit, there is less fatigue from supporting the motor's weight and greater ease of access to small areas. The flexible shaft that couples the motor to the handpiece tends to limit the amount of power that can be transmitted to the grinding tip.
Besides appropriate equipment such as safety glasses and dust/fume extraction systems, workers who use grinders for extended periods would benefit from special anti-vibration gloves, such as those that incorporate gel-filled pads.
About the Author
Mr. A.G Gawli is the CEO of Kaustubh Engineering Services and he can be reachable via email at kaustubhengg@sancharnet.in
Article Source: http://www.simplysearch4it.com/article/28723.html
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