Tornos - Sigma automatic, single-spindle sliding headstock lathes

The new Sigma 20 has 6 linear axes that make it ideal for producing reasonably complex parts whilst providing an excellent price-to-potential ratio. Furthermore, with its 22 tool positions and a high level of interchangeability the Sigma 20 can ensure an exceptional flexibility to its users.
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Sigma 20

NC automatic, single-spindle sliding headstock lathes
Capacity up to 20 (25.4) mm
Single Spindle
Sigma
•  Sigma 20
•  Sigma 32
•  Options Single Spindle


Sigma 20
  • Main features:
  • easily accessible work area
  • Ssmple setting operations
  • excellent price/performances ratio
  • great modularity
  • Main areas of use:
  • electronics
  • automotive
  • medical
  • general manufacturing
  • connector industries


Following its strategy of catering for numerous market requirements with finely adapted products, Tornos has launched the new Sigma 20. The new machine has programming and kinematics geared towards simplicity and this is coupled with strong mechanical elements to guarantee high precision.

The new Sigma 20 has 6 linear axes that make it ideal for producing reasonably complex parts whilst providing an excellent price-to-potential ratio. Furthermore, with its 22 tool positions and a high level of interchangeability the Sigma 20 can ensure an exceptional flexibility to its users.
  • Main advantages:
  • All tool holders and accessories can be interchanged between two tool systems.
  • Exceptional ease of use and user-friendliness.
  • Choice of programming: TB-DECO or ISO.
  • Optimum ergonomics enable easy setup and tool changes.
  • Extremely strong construction as verified by quality of finished components.
  • Efficient chip flow and evacuation.
  • Dedicated tooling for main and counter-spindle allow two tools to cut simultaneously.

Sigma 20   Sigma 20


Sigma 20
Technical characteristics
Headstock (axis Z1) (+C1 optional)
Max. bar passage Ø 20 (25,4) mm
Length of parts - guide bush turning 200 mm
Programmable spindle rotation speed 100-10'000 rpm
Positioned indexing and stop, increments 0.001 degree
Max. spindle power 3.7 (5.5) kW
Guide bush holder (X1/Y1)
Number of tools in the guide bush (fixed or turning) 14
Tool section 16 x 16 mm
Max. number of cross millers/drillers in the guide bush 4
Programmable rotation speed 100-10'000 rpm
Max. power of turning spindles 1.5 (2.2) kW
Counter-spindle and back-operation (X4/Y4/Z4) (+C4 optional)
Max. diameter clamping capacity 20 (25.4) mm
Standard length of parts 200 mm
Programmable rotation speed 100-10'000 rpm
Positioned indexing and stop, increments 0.001 degree
Max. number of back-operations 8
Max. number of fixed and turning spindles 4
Programmable spindle rotation speed 100-10'000 rpm
Max. power of turning spindles 1.5 (2.2) kW
Numeric control Fanuc 31i
Number of simultaneous axes all axes
Number of interpolated axes all axes
Conforms to CE/CEM standards


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 Tornos
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