Sigma 20/6
Single-spindle automatic turning machine with sliding headstock and NC. Capacity up to 20 (25.4) mm

Operators can get to grips with the Sigma 20/6 turning machine very quickly thanks to the use of original solutions combined with proven technology.
Main features:
- Mirror image kinematic
- Setting, adjustments 100% numerical
- 2 independent tool slides with fully compatible and interchangeable tooling
- High productivity.
- Identical headstock and counter spindle.
- Independent roughing tool
- High power for high depth of cuts and large chip removal
- Identical heavy duty machine construction, for main and counter operation
- The only Swiss type sliding headstock machine being able to produce parts using the machining parameters of a fixed headstock machine.
- Machine construction verified by stress analysis
- Up to 28 tool positions.
- Tool settings all done numerically.
- Thanks to a roughing tool, it is possible to have up to 3 tools in the cut simultaneously.

Technical specifications | Sigma 20/6 |
|---|---|
Linear axes | 6 |
Independent tool systems | 2 |
Max. bar capacity | 25,4 mm |
Max bar capacity without preparation | 20 mm |
Standard workpiece length with rotating guide bush | 200 mm |
Spindle rotational speed | 10’000 t/min |
Spindle power | 3,7 (5,5) kW |
Counter spindle rotational speed | 10’000 t/min |
Counter spindle power | 3,7 (5,5) kW |
Rotating tool speed of rotation | 10000 t/min |
Rotating tool power | 1,5 (2,2) kW |
Max. total number of tools | 28 |
Max. total number of rotating tools | 12 |
Control type | FANUC 31i |
Programming software | TB-DECO/ISO |
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TORNOS S.A.
Rue Industrielle 111
CH-2740 MOUTIER
Suisse
Tel. +41 (0)32 494 44 44
Fax +41 (0)32 494 49 03
Rue Industrielle 111
CH-2740 MOUTIER
Suisse
Tel. +41 (0)32 494 44 44
Fax +41 (0)32 494 49 03



