Use and Care Manual

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Description of the machine
Note:
The set 38515 icludes additionally:
1 Power unit
1 set of tools, see page 8
Legend
1. ON - OFF switch with speed control (MM 50/E only)
2. Retainer
3. Connecting cable
4. ON - OFF switch (MM 50 only)
5. Lock button
6. Clamping nut with collet
7. Housing cap
Functional Description
The PROXXON Rotary To ol Micromot 50 / Micromot 50/E
is the ideal tool for precise drilling, milling, grinding,
polishing, brushing. It can be used for cutting, for engraving
and to remove rust. For hobby electronics, model making,
precision mechanics, jewellery shops, opticians, arts, tool
and mould making. For marking tools and cameras. It can
be used on steel, non-ferrous metals, glass, plastic
materials, wood, minerals and ceramics. The drill spindle is
supported in a precision ball bearing which eliminates any
play. Excellent handling because of the pen-type grip. The
machine is reliably driven by a high torque motor. Type
50/E is fitted with an electronic speed regulator.
Technical data
Length: approx. 9" (220 mm)
Weight: approx. 1/2 lb (230 g)
Spindle collar: Ø 3/4" (20 mm)
Motor:
Speed (50): 20 000 rpm
Speed (50/E): 5000 to 20 000 rpm
Voltage: 12 to 18 V
Power draw: approx. 40 W
Noise level: 70 dB (A)
Operation
Clamping, changing tools
Warning:
Never press the locking pin (arrow Fig. 2) while the
machine is running.
– Turn the clamping nut 1 (Fig. 2) lightly while pressing the
lock button until the pin engages.
– Open the collet and change the bit.
Clamp all tools as short as possible. Shafts, which stick out
too far will easily bend causing the machine to vibrate.
Power supply:
Use only power units with a minimum power of 1 A. We
strongly recommend to use the PROXXON adaptors type
NG 2 (S/E) or the NG 5/E or the included power suppy
(only 38515).
Warning:
Do not use a power unit with external speed control in
combination with the Micromot 50/E !
1. Push the non-reversible plug into the power unit.
In case of overloading the PROXXON-power unit will
switch off automatically. Pull the mains plug out and let the
power unit cool down for some minutes.
Working with the machine
Warning:
Always wear goggles!
Do not use any broken grinding discs or bent shafts!
Wear a breathing mask when working under dusty
conditions!
2. Start the machine on switch 4 (Fig. 1) or set the correct
speed (50/E only) with the button 1
Note:
High performance is not achieved by high pressure but by
even speed!
Small tools =high speed
Big tools =low speed
3. For delicate work hold the tool like a pen (Fig. 3). Keep
the ventilation slots open.
4. For rough work hold the machine like a hammer
The electronic speed regulation works only with non-
stabilized power units (like for example all PROXXON-
power units). In connection with a battery the machine will
only run at high speed.
Accessories:
WARNING!
An external speed control should never be used with this
tool.
For complete information regarding PROXXON accesso-
ries, ask for our equipment catalog at the address provided
on the last page beneath the warranty information.
These collets are supplied with the device 28500/-10:
1/32" = 0,8 to 1,0 mm;
3/32" = 2,2 to 2,4 mm;
7/64" = 2,8 to 3,0 mm
For 38515 additionally:
1/16" = 1,3 to 1,5 mm;
5/64" = 1,8 to 2,0 mm;
1/8" = 3,0 to 3,2 mm