Optimum 3346245, Operating Manual

Page: 39 / 120

Operation
Version 1.0.4 - 2020-07-31 39 Translation of the original instructions
MZ4S GB
MZ
4S
_G
B_4.
fm
4.9 Selecting the speed
The correct speed is an important factor for milling. The speed determines the cutting speed by
which the cutting edges cut the material. By selecting the correct cutting speed, the service life
of the tool is increased and the working result is optimized.
The optimum cutting speed mainly depends on the material and on the material of the tool. Hig-
her speeds are possible with tools (mills) made from hard metal or cutting ceramics than with
tools made from high-alloy high speed steel (HSS). You will achieve the ideal cutting speed by
selecting the correct rotation speed.
Use upcut milling if at all possible. In upcut milling, the direction of feed is opposite to the direc-
tion of rotation.
Please refer to a table reference book (e.g. Tabellenbuch Metall, Europa Lehrmittel, ISBN
3808517220) or the following diagrams to determine the correct cutting speed for your tool and
the material to be machined.
4.9.1 Diagram for determining speeds
4.9.2 Setting the spindle speed and start spindle rotation

Switch the drive motor on the control panel to "ON".

Set the speed on the selector wheels. Where necessary, use button direct run.

Close the spindle protection system.

Select the direction of rotation on the control panel. The spindle starts to rotate.
d
mm
inches
min
-1
3 4 5 6 7 8 9 10 20 30 40 50 60 70 100 150
.25" .5" 1" 2" 3" 4" 6"
80
100
200
300
400
500
600
700
800
1000
1500
2000
2500
V
= 4
4 m
/
m
in
V =
35
m
/ m
in
V = 25
m
/
m
in
d