Grinding Speeds Based On Material

Here are the industry standards that are recommended Surface Feet Per Minute (SFPM) based on work piece material.

Aluminum 4500 to 5000
Brass/Bronze 5000 to 6000
Grey Cast Iron 4000 to 5000
Nickel/Chrome 2500 – 3000
Mild/Carbon Steel 4000 to 5000
Titanium 2000 to 2500
Tool Steel 4000 to 5000

As a general rule, you will run 36 grit VSM Ceramic Plus belts at a higher RMP and 120 grit VSM Ceramic Plus belts at a slower speed. You can purchase VSM Ceramic Plus belts on our Nexus Grinders website.

Surface Feet Per Minute
Here is a simple grid to determine your SFPM based on a 4″, 5″ or 6″ drive wheel for a 2 x 72 belt grinder.