Motor Size. Motor size is one of the most important factors when deciding on a grinder for knife making. To effectively grind steel, you need high belt speed with the ability to exert high pressure on the belt. You won’t be able to accomplish grinding very well if you don’t have a large enough motor.
Additionally, can you grind metal with a belt sander?
Then, how do I determine my belt speed?
Calculate the belt velocity by multiplying the circumference of the pulley by the speed of the pulley. For example, the drive pulley has a circumference of (Pi)(D2). This equals 2(Pi). The speed of the pulley is 1,800 rpm.
How many RPM is a belt sander?
Belt Sander/Grinder provides motor speed of 3,600 rpm.
The combination belt and disc sanders are just that, they are sanders. And one difference between a belt sander and a belt grinder is speed. A “sander” is not well suited for metal applications. Most often the combination unit runs only a few thousand surface feet per minute.
David Baker is one of the judges on Sky History’s Forged in Fire. He is a world-renowned swordsmith who specialises in recreating some of the world’s rarest historic edged weapons for both films and museums.
Our 2×72″ Steele Kit Grinder is the machine that gets you into the larger 72″ belt, without breaking the bank. The 3/8″ thick steel plate construction gives you an extremely rigid platform and 2 tooling arm slots allow the use of our wide range of accessories.
Jason has been using Red Label’s EdgeCore Ceramic belts for some time now. He grinds with the 2 x 72 belts, alternating between 36 and 60 grit to shape his blades. When asked why he prefers the EdgeCore Ceramic belts to other alternatives, he had a few things to say.
Belt grinders are used for grinding and shaping metal parts. They have a wide variety of applications, from metalworking to knife making. Belt grinders can be used for both coarse and fine grinding, and they can also be used for deburring and polishing.
Hand Powered Belt Sander
The most common sized belts used on Hand Sanders are 3” x 21”, 3” x 18” and 4” x 24″ sanding belts.
The optimal speed for belt grinders is largely dependent on a number of factors, including type of abrasive grain, grit grade, workpiece material, and more. Generally speaking, a safe speed in most cases is 3,000 surface feet per minute. You can calculate surface feet per minute using the formula SFPM = RPM X .
The highest quality product overall is the Happybuy 2Hp Belt Grinder. This belt sander grinds precisely and quickly. The quick release works great and it’s easy to change out belts when you need to do so.
The 2hp motor is TEFC (Totally Enclosed Fan Cooled) which is the only choice for harsh grinding environments.