Cutting speed steel

CUTTING SPEED CALCULATION

You can calculate the correct speed of a spiral drill with this formula:
    n = (Vc x 1000) / (π x D)
The formula consists of the following elements:

• n = speed per minute
• Vc = cutting speed in meters per minute
• Π = 3,14
• D = diameter in millimeters

The structure is actually quite simple. First you convert the cutting speed into millimeters, because the other figures are also expressed in millimeters (Vc x 1000). Then you calculate the circumference of the hole (π x D).

An example will quickly make this clear. Suppose we drill into unalloyed steel at a speed of 60 m/min and maintain a diameter of 30 mm, the result is 636 rpm:
    (60 x 1000) / (3.14 x 30) = 636

CUTTING SPEED TABLES

Taking a calculator to hand each time to calculate the cutting speed for steel takes a lot of time. Fortunately, you can fall back on our cutting speed tables. Note: these are not absolute rules. You can, of course, deviate from them.

NEED MACHINES TO CUT STEEL?

Then you've come to the right place. Metalworkers will find all the machinery they need to cut steel at The Tollenaere. Ask for more information via the website or visit one of our showrooms. 

Customized guidance? 
Come to our showroom, see the full range and test for yourself! Or call us at +32 9 377 29 49