ANSI B7.1 "Safety Requirements for the Use, Care and Protection of Abrasive Wheels" is the industry standard and the authority of knowledge for grinding wheels in North America. Compliance to this safety standard is critical to end user safety. ANSI requires that most grinding wheels be speed tested at specified speeds above the maximum ...
safety precaution tips of grinding machine . Aug 5, 2011 . This blog will cover grinding wheel use, tips for grinding, and safety reminders. Using Grinding . Grinding wheels are used with grinding machines. . Before your next project, brush up on the safety precautions. Having a. More details » Get Price. Read More
Use the correct wheel for the machine's size and speed, and the work to be performed. • A cutting disc should not be used for grinding. The RPM rating of the disc/blade must be higher than that of the angle grinder. Adjust guards to deflect flying particles away from operator. • Use an 180° guard between operator & wheel.
cutting wheels. Another safety feature available on grinders is a mechanical safety brake. This can stop a slicer wheel in less than 1 second and a grinding wheel in less than 2 seconds when the grinder's switch is disengaged. If the operator loses control of the tool, this safety feature helps prevent a serious injury from happening by
Some of the wheel must be exposed to allow grinding access, but the maximum access space between the horizontal work rest and the top of the wheel guard opening should be no more than 65 degrees of the wheel. The horizontal work rest should be adjusted to within 1/8-inch of the wheel.
Grinder safety gauges can be used during the installation, maintenance, and inspection of bench/pedestal grinders to ensure work-rests and tongue-guards comply with OSHA's 1910.215 regulation and ANSI standards. To do so, wait until the wheel has completely stopped and the grinder is properly locked out before using a grinder safety gauge.
Grinding Wheel Safety. Grinding wheels can be dangerous. I have worked at two companies where people died as a result of catastrophic wheel failures. Eye and hand injuries are common with abrasive hand tools and bench grinders. It is imperative for everyone using grinding wheels or equipment to be thoroughly trained.
Manufacturers must comply with all of the label requirements under 1910.1200 (f) (1) (i)- (vi) for shipped material. However, the one-time label rule of paragraph 1910.1200 (f) (4), Solid materials, would apply. Question 3: Are grinding wheels when used for wet grinding considered an article under HCS 2012?
English. Labels and stickers. Prevent accidents for abrasive wheel machinery and tools. Prevent accidents: Adjust the distance between the grinding wheel and the tongue guard to a 1/4 inch maximum and the distance between the grinding wheel and the work rest to a 1/8 inch maximum. English Order printed copy 08/04/2006.
Wire wheels and power buffers now fall under CFR 1910.212, General Machine Guarding. From an OSHA letter of interpritation: Wire wheels should have at least an upper wheel cover, if cleaning large items such as axes or shovels and a full wheel cover as required for abrasive wheels with a tongue guard if doing other types of cleaning or ...
According to OSHA grinding regulations, grinding machines must have safety guards. A guard must cover the machine's spindle end, flange projections and nut and have secure mounting that keeps it in line with the grinding wheel. Guards must also protect workers from the grinding wheel; workers should only be exposed to 90 degrees (75 percent) or ...
Peripheral grinding wheel having both sides recessed to allow grinding clearance for both flanges or recessed so that an unusually wide faced wheel may be mounted when the available mounting thickness (E) is less than the overall thickness (T). Type 11 – Flaring-cup wheel. Side grinding wheel having a wall flared or tapered outward from the back.
How to "ring test" a grinding wheel. Grinding wheels must be inspected and "ring-tested" before they are mounted to ensure that they are free from cracks or other defects. Wheels should be tapped gently with a light, nonmetallic instrument. A stable and undamaged wheel will give a clear metallic tone or "ring."
OSHA requires a maximum clearance of 1/4" between the grinding wheel and the tongue guard. If a wheel breakage should occur, maintaining the proper distance will help to contain the wheel fragments and reduce the probability of an injury.
**The work rest must be kept adjusted to within 1/8-inch of the wheel. ***Adjustable tongue guards must be kept to within 1/4-inch of the wheel. ****If eye shields are not present, then the operator must don a face shield when grinding. Other Precautions. New grinding wheels should be installed and replaced by competent persons.
Use, Care, and Protection of Abrasive Wheels. §3583. Portable Abrasive Wheels. (a) General requirements. Abrasive wheels shall be used only on machines provided with safety guards as required in Section 3577 (b). (b) A safety guard shall cover the spindle end, nut and flange projections. The safety guard shall be mounted so as to maintain ...
(2) Abrasive wheels manufactured on or before July 1, 1998 shall meet the requirements of either ANSI B7.1-1978 or ANSI B7.1-1988, Safety Requirements for the Use, Care, and Protection of Abrasive Wheels.
American National Standards Institute • ANSI B7.1, Safety Code for the Use, Care, and Protection of Abrasive Wheels • ANSI B11.9, Safety Requirements for Grinding • Proper exposure angle (90 degrees) • Adjustable tongue guards (1⁄4-inch) • Adjustable tool/work rest (1⁄8-inch) Plastic glass (Plexiglas) shields are optional.
The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on other portable grinding machines shall not exceed 180 deg. and the top half of the wheel shall be enclosed at all times. (See Figures P-5 and P-6.) View or download PDF Figure No. P-5 View or download PDF Figure No. P-6 1910.243 (c) (5)
This checklist covers regulations issued by the U.S. Department of Labor, Occupational Safety and Health Administration (OSHA) under the general industry standards 29 CFR 1910.215 and 1910.243 and the construction standards 29 CFR 1926.303. It applies to fixed and portable abrasive wheel machinery. Natural sandstone wheels and metal, wooden ...
The use of new blotters every time a wheel is mounted is an important safety measure that will also protect your flanges from abrasion. An unsecured or improperly flanged grinding wheel can break and cause serious injury. Careful design and periodic inspection of grinding wheel mounting flanges are critical elements to a safe operation.
safety hazards on wire wheels. To cite a safety hazard you should use the requirements in 1910.212, general machine guarding. Wire wheels should have at least an upper wheel cover, if cleaning large items such as axes or shovels and a full wheel cover as required for abrasive wheels with a tongue guard if doing other types of cleaning or ...
For more information on this topic or any other grinding wheel safety information, please review ANSI and OSHA requirements and literature provided by the grinding wheel and machine manufacturer. You may also contact the Saint-Gobain's Product Safety Department at (508) 795-2317, or you may contact your Saint-Gobain representative …
For instance, most workers who are trained in accordance with OSHA regulations can recognize a worn power cord by its appearance. However, EM385 workers know this and realize the importance of conducting a ring test before installing a new grinding wheel and the importance of evaluating a confined workspace for hazards.
The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cylindrical grinding machines shall not exceed 180 deg. This exposure shall begin at a point not more than 65 deg. above the horizontal plane of the wheel spindle. (See Figures O-10 and O-11 and subparagraph (9) of this paragraph.)
Checklist for Abrasive Wheel Equipment Grinders1 Standard 29 CFR 1910 Description YES NO2 From the Abrasive Wheel standard 215(a)(2) Do side guards cover the spindle, nut and flange and 75% of the wheel diameter? 215(a)(4) Is the work rest used and kept adjusted to within 1/8-inch (0.3175cm) of the wheel? 215(b)(9)
DO run wheel in a protected area for one minute before grinding. DO wear ANSI Z87+ safety glasses and additional eye and face protection, if required. DO employ dust controls and/or protective measures appropriate to the material being ground.
OSHA Training Toolbox Talk: Operating a Pedestal or –Bench Grinder Basic Safety Requirements [Reference 1910.215 / 1926.303] Can you believe the surface of an eight-inch diameter grinding wheel that is mounted on a bench grinder turning 3,100 RPM's is traveling at over 65 miles per hour? It's no wonder that
The OSHA standard for grinders,OSHA 29 CFR 1910.215, is one of the most frequently cited violations issued during OSHA machine-safety inspections. Improperly adjusted work rests and tongues on bench grinders are the main reasons for the citation. According to 29 CFR 1910.215(a)(4), work rests must be kept adjusted closely to the wheel with
Grinding Wheels. Grinding wheels should match the motor speed. The RPM rating of the abrasive wheel should be equal to or exceed the RPM rating of the grinder motor. Using an abrasive wheel designed for low RPM motors on a high RPM grinder may cause the wheel to break apart, increasing the risk of injury. Testing Wheel Grinders. OSHA requires ...