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Power brushes are
designed for applications such as deburring, cleaning, and rust and paint
removal. They come in a variety of types, including wheel, cup, end, and
encapsulated. Mini-grinder cup and wheel brushes, pilot bonding brushes, and
flare brushes are also available. When selecting industrial
brushes of any kind, buyers need to consider both technical specifications
and application requirements.
To help power brush buyers choose the right tool for the job,
Brush Research Manufacturing (BRM) offers a free Power Brush
Engineering Guide. This one-page resource covers the required horsepower
for driving power brushes, recommended surface speeds for various power brush applications,
and tips for optimal brushing action. Here are some highlights.
Required Horsepower
for Driving Power Brushes
To drive a power brush, users must determine the amount of horsepower
that's necessary. There are four factors
to consider.
·
Required brushing pressure
·
Resistance between the work surface and the
brush (trim length)
·
Brush speed
·
Brush face width
Based upon the medium brushing action for a 1" brush face, the
Power Brush
Engineering Guide lists the necessary motor size (hp) and revolutions per
minute (rpm) for power brush tools of various diameters. As a rule, power brushes
with a wider face require additional horsepower depending on the relative brush
load. Typically, short-trim power brushes require more horsepower than
long-trim power brushes.
Recommended Surface Speeds
for Brushing Applications
The Power Brush
Engineering Guide also recommends surface feet per minute for brushing
applications such as burr or scale removal, weld cleaning, edge blending, wet
or dry cleaning, surface polishing, and surface blending. There's also an
easy-to-read table of peripheral surface speeds for power brushes with various
inch-based diameters.
Tips for Optimal Brushing
Action
Brush Research
Manufacturing understands that there are many variables to consider when selecting
power brushes. Although one or more brush tools may achieve the same results,
there may be differences in brush performance. That's why the Power Brush Engineering Guide offers
guidelines for achieving a faster finish, finer finish, and longer brush life.
This free resource from BRM also provides tips for reaching
irregular surface areas and removing burrs instead of roughing or preening
them. To learn more from the Power Brush Engineering Guide, just visit this page
on our website, or click here
for a free .pdf version. Please let us know if you have questions or comments
about power brushes or any industrial brush tools.
Author's Note: This CR4 blog entry originally
appeared in BRM's
Flex-Hone Blog.
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