The essential requirements for using a tool at high speed are:
̶ a compact, short, lightweight tool
̶ precise, and with any inserts blocked with a high degree of safety
̶ balanced and coupled symmetrically with the tool-holder
̶ with bits near the rotation axis
OBSERVE THE MAXIMUM ROTATIONAL SPEED (rpm) SPECIFIED BY THE TOOL
MANUFACTURER.
SPEED LIMITS
Under no circumstances must the maximum speed indicated by the tool manufacturer be exceeded.
Depending on the machining operation to be performed, it is the responsibility of the user to decide whether
to operate with a lower speed (NEVER HIGHER) than that specified by the tool manufacturer or shown on
the following pages.
ROTATION SPEED SELECTION CURVE
As an example, the chart below show the maximum rotation speed of the electrospindle when empty, on
the basis of the weight of the TOOL+TOOL HOLDER assembly (including ring nut and mill collet if present),
and of the distance between the nose of the electrospindle and the center of gravity “G” of the tool+tool
holder assembly. The mass of the tool+tool holder assembly was applied to the center of gravity “G”.
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