ASK THE EXPERT: What are the benefits of a variable speed angle grinder?
Channel: Norton Abrasives EMEA
Date: 2021-09-03

Variable speed angle grinders are useful when you're using a number of different products with different RPM so you don't need to switch between machines. 

As our Application Engineer Paul explains, they're particularly useful when you're using non-woven discs. Made of nylon fibers and abrasive grains, these discs can heat up and begin to melt when used at very high RPM. Although they're safe to use at 11-12,000 RPM, a good tip for a better finish, is to turn the grinder speed down to 6-7,000 RPM. You'll still achieve an excellent finish, but the risk of smearing will be reduced. 

Other products also benefit from adjustable speeds, such as the Norton Rapid Polish disc, which is made from felt and benefits from a lower RPM for the same reason as the non-woven discs. 

If you'd like to know more, or have a question for Paul, comment below and we'll get back to you!

For more information, tips and advice about abrasives, machines or metal applications, visit https://www.nortonabrasives.com/en-gb.