Operating manual for pneumatic grinding spindle
3
Speed selection
The processing speed is determined by the blade
diameter and the actual cutting speed (depending on
mounted tool). The relevant characteristics are shown in
the diagram Fig. 3.
To determine the machine speed, proceed as follows:
•
Select the respective blade diameter [mm] and draw
a vertical line to the point where it intersects with the
characteristic of the desired cutting speed [m/min].
•
Read the processing speed [rpm] on the axis to the
left by drawing a horizontal line from the intersection
with the characteristic.
Fig. 3: Speed selection
Example:
Determine the processing speed for hard-faced milling
spindles with a blade diameter of 10 mm; desired cutting
rate of v = 900 m/min.
Draw a vertical line from the blade diameter value 10 mm
to the intersection with characteristic v = 900 m/min
(marked in the diagram). From this point, draw a
horizontal line to the y-axis. The required processing
speed is approx. 28,600 rpm.
P
roc
essi
ng spee
d i
n
r
p
m
Blade diameter in mm
Maintenance
Maintenance unit
The air supplied by a compressed air system is generally
contaminated and contains a considerable amount of
moisture. Therefore, a maintenance unit must be installed
between the compressed air supply system and the
pneumatic tool.
The maintenance unit regulates the operating pressure
and filters and dries the air. The usability and service life
of your tools is thus considerably increased.
The usability and service life of your tools is thus
considerably increased.
For suitable maintenance units, please refer to our
catalogue. To ensure proper functioning of the BIAX
pneumatic grinding spindle, regularly inspect the
maintenance unit. Drain off any condensate and fill the
unit with BIAX special oil, if necessary.
Testing of idle speed
Check the idle speed of the grinder every 20 operating
hours, using a speed rev counter.
At an operating pressure of 6 bar, the nominal speed may
not be exceeded when operating the grinder without
grinding tool.
