To avoid injuries follow the safety precautions listed below. Topics covered include personal protective equipment, grinder and grinding wheel RPM compatibility, ring tests, grinding wheel installation, guard adjustment, and aluminum oxide grinding wheels. Most machines, and especially CNC machines, use Surface Feet Per Minute (SFPM) as an input, which requires operators to do the conversion. 4.1 Critical Grinder Wheel Safety Issues:-5 GRINDING SAFETY; 6 Using the Right Wheel:-6.1 GRINDING SAFETY; 7 Grinding machine/wheel RPM:-8 Other Accessories or Attachments:-9 Guard Mounting Safety; 10 Proper Handling of Grinders; 11 Proper grinder PPE:-11.0.0.1 Goggles AND a full face shield; 11.0.0.2 Leather Gloves:-11.0.0.3 Protection:- • Both clamping fl anges must be of equal diameters.

All Norton grinding wheels are marked with a maximum operating speed in RPM. Always wear safety glasses, face shield, protective gloves, suitable protective clothing, hard hat, steel toe boots and hearing protection and dust mask if necessary. This CD is the first release in a new Safety Interactive Training Experience (SITE) product line that use multimedia presentations which actively engage trainees in user-based interactions. Grinding Wheel Safety Injuries from grinding wheels can be prevented by the use of eye protection, safe work practices and proper care and guarding of the grinding wheel.

Safety practices that must be followed to minimize accidents and maximize safety when using angle grinders and resin-bonded wheels apply to the wheels, the grinder, and the operator.

The RPM rating of the disc/blade must be higher than that of the angle grinder. It is the abrasive (grinding) wheel industry standard for the “Safety Requirements for the Use, Care and Protection of Abrasive Wheels” and most abrasive wheel safety-related questions can be found there. Breakages do not occur often, but because of the high speed at which grinding wheels travel, the results are apt to be serious unless proper guards are in place. If a grinding wheel shatters while in use, the fragments can travel over 300 miles per hour. Grinding Wheel Safety Injuries from grinding wheels can be prevented by the use of eye protection, safe work practices and proper care and guarding of the grinding wheel. The Wheel. Look out for it. If RPM is not mentioned, never use the wheel. Lower quality cutting and grinding wheels pose a real threat to your safety. If your business uses Type 1 or Type 27 grinding wheels, there are steps to take to keep you and your employees safe. Introduction Whether they are portable or fixed, grinding wheels are designed to operate at very high speeds. The most common resin-bonded wheels are Type 27 (depressed center) for grinding and cutting and Type 1 (flat) for cutting. The spindle

Adjust guards to deflect flying particles away from operator.

• Always wear suitable protective clothing. Use racks or hooks to store portable grinders. Wear goggles for all grinding machine operations. GRINDING MACHINE SAFETY Grinding machines are used daily in a machine shop. RPM of that shown on the wheel/disc! Use the correct wheel for the machine’s size and speed, and the work to be performed.

ANSI B7.1 has been called the “Bible” for grinding wheel safety for good reason. Warn co-workers to do the same. ... 1.750 RPM. • A cutting disc should not be used for grinding. When gauging the compatibility between a grinder’s RPM and a grinding wheel’s RPM, remember: The two numbers must be exactly the same.

If grinding is not dangerous, why use a guard or other protective device on every grinding wheel ? RPM Art. Also, wear the grinding wheel guard all the time. • Use an 180° guard between operator & wheel. The most common are injuries to the eyes from flying particles, hand and finger injuries and injuries caused by grinding wheel breakage. DOs for grinding wheel safety • Make sure that the abrasive tool is mounted correctly. Keep other employees away while operating power tools. GRINDING MACHINES Grinding is the process of removing metal by the application ... Each grinding abrasive wheel is covered by a wheel guard to increase the safety of the machine. ... Lower quality cutting and grinding wheels pose a real threat to your safety. 5. Ensure the diam-eter of the disc bore hole matches the diameter of the mount on your machine.

Do not use wheel fl anges of different diameters.

Tapping a grinding wheel shakes any impurities out of its pores. Stand away from the wheel when starting grinders. 4 SAFETY IN THE USE OF ABRASIVE WHEELS Operating Speed * Check that the spindle speed of a machine does not exceed the maximum permissible speed of the wheel as specified by the manufacturer. Guards and other protection devices make grinding really safe. Grinding Wheel Selection for Cylindrical Grinding The listing of grinding wheel specifications for commonly used materials (on page 80) serves the purpose of general information only. Safety advice when using cutting-off and grinding wheels On October 04 2016 For your safety you should ensure that you are fully aware of how to safely use cutting-off and grinding wheels ... which are usually outlined on the packaging or on the wheel itself.

Use Grinding Guard & Check The Wheel; Over time, due to the prolonged usage; crack or damage to the wheel is common.

Long Life Grinding Wheel Speed Grinding Wheel Diameter Thickness Arbor hole Design Max.