• Ensure regular and proper maintenance of
your tool
• Stop operation of the tool immediately if ex-
cessive vibration occurs!
• Unsuitable bits and cutters can cause exces-
sive vibration and noises. Only use suitable
bits and cutters!
• When working with the device, take suffi cient
breaks if necessary!
Operation
Before work:
Caution!
Your UF/E milling spindle is not designed
as a hand-held device but must be clam-
ped in a suitable device (drill stand, milling
portal or similar) for functional and safety
reasons!
Caution!
When selecting the clamping device, it is
imperative to ensure sufficient stability! The
reaction forces that occur when working
with the UF/E milling spindle are sometimes
considerable!
Unstable clamping devices not only have a
negative influence on the work result but
are also a safety risk.
Clamping the milling spindle (Fig. 2):
There are two clamping diameters on the un-
derside of the device for clamping:
• 20 mm: For clamping on Proxxon clamping
fi xtures
• 43 mm: For clamping in standard clamping
devices available on the market and in the
Proxxon BFB 2000 drilling and milling bench
(article number 20000).
To operate, the UF/E milling spindle must be
fi xed in a clamping device. Suitable drill stands
are good examples of this. It is highly recom-
mended to use the milling spindle in both
manual and CNC-controlled vertical or portal
milling machines.
In the following we will demonstrate the clam-
ping process on the PROXXON FF 500 BL fi -
nishing miller or its CNC version:
1. Loosen Allen screw 1 and remove the en-
tire milling head 2 from the holder of the
z carriage 3.
2. Insert the collar of the Micromot adapter
(Proxxon no. 24346) 4 into the holder of the
z carriage and loosely screw in the Allen
screw 1.
3. Insert the milling spindle 6 into the 20 mm
fi t 5 and tighten it with the Allen screw 7.
4. Align the milling spindle and tighten the
Allen screw 1
Fig. 3 shows the typical installation situation in
a portal milling machine. The necessary steps
to fi x the device are the same.
Inserting and changing the collets (Fig. 4):
Caution!
Always disconnect the mains plug during all
assembly and maintenance work to avoid
inadvertent device start-up! Unintentional
start-up can cause not only damage but
also injury.
Caution!
Do not use damaged or deformed milling
cutters or grinding pins, only use tools in
perfect condition!
Caution!
Make sure that the selected bits and cut-
ters are suitable for speeds of at least up to
32000 revolutions per minute.
Caution!
Always use collets and bits and cutters with the
respectively suitable diameters!
The scope of delivery of the milling spindle in-
cludes 3x ER 11 standard collets with diameters
of 2.5 mm, 3,2 mm and 6 mm. This covers the
most common milling shaft diameters. Any addi-
- 11 -