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Manual tool changing
KOSY - Components > Hardware > Machining units
Decision making
Date: June 2010
To work on workpieces (to do milling, drilling, engraving a.o.m.) you need a machining unit (MU). It is fixed to the Z-table of the CNC-machine.The MU consists mainly of a spindle with a clamp to fix a tool (mill, drill, engraving router a.o.m.)
Besides the spindle head, some parts like holder, protection shield, adapter for vacuum cleaner, power supply and integration into the emergency-stop-system are required, to comply with the security rules.
The following overview shows the machining units which are available together with KOSY3 where the tools are changed manually:
BAE10K with Universal Spindle
Picture without adapter for dust collector, open hood
- 800-Watt Universal milling motor (spindle)
- Speed range 10.000 .... 27.000 rpm
- Clamps 3 or 3,17 mm (for educational use) to 8 mm
- Low purchase price
- Sound level (without machining) approx.: 70 dB (position 1), 95 dB (position 6)
BAE50 with stepping motor (C-Axis)
Picture with adapter for dust collector
- Rotates arount the Z-Axis
- Torque of the motor max. 500 Ncm
- Supervision of speed
- Speed, rotating direction, angle and power are freely programmable.
- Universal use, particularly low noise
- Thread cutting
- Tangential cutter
- Speed range 0,x .... 3.000 rpm
- Clamps 3 or 3,17 mm (educational use) to 8 mm
- Soundlevel (without machining): < 50 dB .... < 70 dB
BAE55 with Servomotor (HighPower C-Axis)
Not suitable for KS3x1 and KS350
- Like C-Axis, but more power
- Our most progressive and modern spindle
- Big speed range
- Standardized collets
- Very low sound level
BAE60 with High-Frequency Spindle (Osada)
Picture without adapter for dust collector
- HF-Spindle in metal carter
- Speed range 1.000 .... 40.000 rpm
- Clamps 2,3 .... 3 mm
- Sound level (without machining): < 50 dB .... < 75 dB
BAE65 with High-Frequency Spindle (Osada
and mechanical depth controller (MTR)
Picture with adapter for dust collector
- Spindle data as above
- Freely supported holder via rollers
- Sensorfoot for depth control
- Dust removal through sensorfoot
- To be fixed for milling tasks
Decision making/Range of applications
As KOSY can be used in a wide range of applications across countless branches and professions many facts and features must be taken into account when comparing the spindles. The following table is therefore quite large. It is meant to help you with the selection of your spindle meeting your indivial needs.
For printing the table, please click on the .pdf sign 
| Criteria/Type | Universal spindle BAE10K |
SF-Osada BAE50 |
SF-Osada with MTR BAE65 |
C-Axis BAE50 |
HighPower C-Axis BAE55 |
| Application Information | |||||
| Main application |
Universal Education Hobby |
Thin tools Fine machining |
Thin tools Engraving PCBs |
Universal Flexible All tools |
Universal Flexible All tools Powerful |
| Long-time operation | -- | +++ | +++ | ++ | ++ |
| High speed | ++ | +++ | +++ | - | + |
| High range of speed (from very slow and powerful for thread cutting to very fast for engraving) |
- | - | - | + | ++ |
| High range of machining (from drilling in wood....plastics.... Alu to engraving in plastics....copper....extr.Alu) |
- | - | -- | + | ++ |
| Milling machining > 3mm | +++ | --- | --- | ++ | +++ |
| Milling machining < 0,8mm | --- | +++ | ++ | - | + |
| Engraving, Isolating milling | - | +++ | +++ | - | + |
| Big borings > 3mm | - | --- | --- | ++ | +++ |
| Small borings < 0,8mm | --- | +++ | + | - | - |
| Thread cutting (with standard tap) |
--- | --- | --- | ++ | +++ |
| Thread cutting (with toothed tap and Helix) |
+ | -- | --- | ++ | ++ |
| High Precision machining | -- | +++ | ++ | +++ | ++ |
| Precise constant concentricity | -- | ++ | ++ | ++ | ++ |
| Easy toolchange | -- | +++ | + | ++ | + |
| Use with mechanical depth control (MTR) |
+++ | --- | +++ | --- | --- |
| Use with electronic depth control (TMR) |
+++ | --- | --- | +++ | +++ |
| Software control of ... | |||||
| Speed in rpm | --- | + | + | +++ | +++ |
| Rotation direction left/right | --- | --- | --- | +++ | +++ |
| Control of the rotation | --- | --- | --- | +++ | +++ |
| Angle position | --- | --- | --- | +++ | +++ |
| More-axes-movement (e.g.: thread cutting, tangential cutter) |
--- | --- | --- | +++ | +++ |
| Operational data | |||||
| Torque | ++ | - | - | + | +++ |
| Big lower torque (N small, lower setting area) |
- | - | - | + | + |
| Big upper torque (N big, upper setting area) |
++ | - | - | - | ++ |
| Quick Stop (Emergency Stop) |
- | + | + | +++ | +++ |
| Low noise leve (without machining noise) |
-- | ++ | ++ | ++ | ++ |
| Stiff holder, stability | - | + | + | ++ | ++ |
| Integrated dust collection | +++ | - | +++ | +++ | +++ |
| Modifying possibilities for extra charge | |||||
| Range of power/revs | --- | --- | --- | + | ++ |
| Angle resolution | --- | --- | --- | ++ | ++ |
| Range of applications | -- | -- | -- | ++ | +++ |
| Autom. tool changer | --- | - | -* | + | ++ |
| Controller/Programming | --- | - | - | +++ | +++ |
| Overhead costs / Price | |||||
| Low expenditure for Service/substitute |
-- | +++ | ++ | ++ | + |
| Little need for maintenance | -- | ++ | ++ | + | + |
| Low purchase price | ++ | - | -- | + | - |
--- absolutely unsuitable, -- mostly unsuitable, - suitable with reservations, + suitable, ++ well suitable, +++ best suitable
* Alternative HF-Spindle with pneumatic toolchanger is available.
Note: In some cases one spindle will not meet all your demands. Please contact us for a solution, we offer, for example quick-change devices for 2 different spindles. So you can start with one spindle and buy another one later, but take it into account with your first order already.