IMPORTANT QUESTIONS ABOUT
SPINWORX
®
–
AND CONVINCING ANSWERS
What is the tool‘s objective?
By using our
SPINWORX
®
system, you can machine your components more efficiently and optimise your machine availabili-
ty at the same time.
SPINWORX
®
is ideal for roughing and residual material machining during face milling, slot, peripheral
and pocket milling in materials such as steel, cast iron, rust-free materials and high-temperature alloys.
How fast does the insert rotate?
The insert rotates at different speeds depending on the material removal parameters. The decisive factors are the axial
positive chip angle and particularly the axial cutting depth a
p
and the tooth feed f
z
. These dependencies make the insert
turn by around 0.5° to 2.1° on the pin, depending on tool speed.
Does the use of „loose“ inserts lead to disadvantages in process reliability?
No, the insert is constantly „pre-clamped“ with forces in axial direction like the stationary system. Rotation starts at the
beginning of the cut and ends when the insert emerges from the material.
Can SPINWORX
®
be operated without coolant?
For optimum results with the
SPINWORX
®
tooling system we recommend using internal coolant supply air, emulsion or
MQL for both chip removal in the tool and to keep the insert seat clean! Wet machining up to max cutting speed of V
c
140
m/min! This also increases the service life of the seat of the tool. POKOLM offers special rotary transmission leadthroughs
for machines that do not have an internal coolant supply. Please contact your technical sales representative from POKOLM
or your respective retailer for POKOLM products for more information.
How high may the torque for tightening the pin be?
Depending of the insert diameter our specification for optimum torque is from 0.5 up to 2.5 NM. We recommend the
use of our convenient and pre-set torque keys. Care must be taken that the maximum permissible torque is not ex-
ceeded. Excessive tightening torque will make it more difficult to loosen the pin. The direction of rotation of the in-
sert is counter-clockwise, which means the maximum tightening torque is achieved by the actual machining process.
All tools have 7° positive axial angle, why not neutral 0°?
Positive axial angles allow a higher stock removal rate in relation to the machine capacity and torque. This also means that
the
SPINWORX
®
insert achieves a higher rotation rate and thus less wear.
Is the product protected for Pokolm?
Yes, this product and other variants of the pivot-mounted insert have been protected exclusively for Pokolm
Frästechnik GmbH & Co. KG.
Are further inserts planned e.g. special cutting materials and geometries for machining exotic materials?
Yes, we are active in this area too and aligning our development processes to both current and anticipated market
requirements. The initial priority is to overcome technical system and physical limits.
Why should the pin be changed every time an insert is replaced?
We cannot guarantee the pin‘s will have a service life of more than 100 h. However, we can guarantee that the pin has
a longer service life than the insert. Pin and insert are always delivered in a perfectly matching combination in
terms of their respective tolerances. Safe function is only guaranteed in the combinations we have put together.
What about the service life of the milling tools?
The service life of
SPINWORX
®
tools is similar to that of conventional systems. The use of appropriate cooling media such
as air, emulsion and MQL to keep the seat of the insert clean significantly extends the service life.
Can the insert pin also be used without paste on the thread?
This is possible, but not recommended. The high process temperature can lead to extreme increases in loosening torque in
some cases. For this reason, we recommend the use of the high-temperature paste included with every
SPINWORX
®
tool.
This can be reordered from POKOLM if lost or used up (item: Z 00043).
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