Grinding Safety .ppt for the training to grinders

PPT

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
Safety During
Grinding/cutting
Operation

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
HAZARDS
•Breakage of wheel
•Flying particles
•Electric Shock
•Noise
•Vibration
•Rotating motion

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
Precautions Before & During Usage
•Flanges
•Mounting
•Machine
•Visual Inspection
•Labels
•Safety Devices

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
FLANGES
•Flanges are very important
•Both flanges DIA to be same
•Flange DIA to be atleast 1/3 dia. of wheel
•Flanges must be relieved

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
MOUNTING
•Wheel must easily fit on the spindle. MUST NOT
BE LOOSE
•It bore is tight keep the wheel aside. DO NOT
TRY TO INCREASE BORE SIZE

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
Unsafe MethodMounting of Wheel on Surface Grinder
M/c RPM 6600 Wheel RPM 6500
Grinding wheel RPM is less than RPM of the
machine

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
MACHINE
•Machine should be well maintained.
•There should be no vibration.
•Bearing should be in good condition.
•Protecting guards should be fitted.
•Cable and plug should be in good condition.
•Side handle should be fitted.
•Do not over load the machine.

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
Double earthing
Symbol of double earthing
(No separate earthing
required, No 3 pin plug top
required)

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
VISUAL INSPECTION
Visually,
•inspect the wheel for material defects, cracks, expiry
date, RPM or any damage.
•Inspect the machine for any defects / damages.
•Inspect the machine’s cable & plug and ensure there
should not be any joint very near to the machine
•Inspect the work area –there should be No Diesel / oil
Slippage, combustible material, etc. in work area.
Remember :
Store wheels and machine at dry place.
Don’t use wet or damaged wheels / machine.

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
CHECK LABELS
•Maximum operating speed (MOS) is mentioned on the
wheel. Ensure machine’s speed is less than MOS of the
wheel.
•Resin bonded wheels have expiry date. See that the
expiry date has not passed if so then don’t use that
wheel & inform to concern authority or destroy it.
•Read safety LOGOS on the label and implement it.

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES

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TECHNOLOGY | ENGINEERING | MANUFACTURING | CONSTRUCTION | LIFE CYCLE SERVICES
SAFETY DEVICES
•Use machine guards
•Use Electric Plug in the machine
•Use Ear Plug
•Use Face shield