SB-20r

type G

Diameter 20 mm / 23 mm (option)
Headstock stroke 205 mm / 50 mm (fixed headstock lathe)
Machining possibilities

Kinematics & tools

  • 6-station tool holder on the tool post
  • 4 (5) + α power-driven tools on tool post for cross machining
  • 4-station drilling unit including sleeves on the front and rear side
  • 4 + α power-driven tools for backworking including sleeves
  • 7 axes

SB

20R


type G

EXCELLENT

VALUE FOR MONEY

The SB-12/20R G is the systematic further development of the SB series and is characterised by excellent value for money. The range of machining possibilities of the SB-12/20R G was extended by power-driven tools on the rear side.
The automatic lathe can also be converted into a fixed headstock lathe and therefore achieves cost benefits with conventional turning.

Advantages

  • CNC control FANUC series 0i-TF Plus, control system with handle
  • C axis control as standard on main and sub spindle
  • fully independent backworking with 4 stations
  • convertible from sliding headstock to fixed headstock lathe
  • movable control panel
  • low space requirement
  • ideal replacement for cam-controlled lathes
General information SB-12R G SB-20R G
Number of axes 7 7
Max. rapid traverse speed 35 m/min 35 m/min
Weight approx. 1,750 kg approx. 1,750 kg
Coolant tank capacity 180 litres 180 litres
Dimensions (L x W x H) approx. 2,070 x 1,177 x 1,760 mm approx. 2,070 x 1,177 x 1,760 mm

Main spindle side SB-12R G SB-20R G
Number of axes 4 4
Main spindle (headstock) Z1 / C1-axis Z1 / C1-axis
Tool post X1 / Y1-axis X1 / Y1-axis
Max. machining diameter 12 mm / 13 mm (option) 20 mm / 23 mm (option)
Max. headstock stroke (sliding/fixed headstock) 205 mm / 30 mm 205 mm / 50 mm
Max. main spindle drive power 3.7 kW 3.7 kW
Max. main spindle speed 15,000 1/min 10,000 1/min
Tools on the tool post    
Turning tools 7 tools (□ 10 mm) 6 tools (□ 12 mm)
Drilling tools (4-spindle drilling unit) 4 tools (ER16) 4 tools (ER16)
Cross machining tools 4 (5) tools 4 (5) tools
Max. speed cross machining 10,000 rpm 8,000 rpm

Sub spindle side SB-12R G SB-20R G
Number of axes 3 3
Sub spindle X2 / Z2 / C2 axis X2 / Z2 / C2 axis
Max. chucking diameter 12 mm / 13 mm (option) 20 mm / 23 mm (option)
Max. sub spindle drive power 1.1 kW 1.1 kW
Max. sub spindle speed 12,000 rpm 9,000 rpm
Tool stations 4 tools (4 power-driven) 4 tools (4 power-driven)
Max. backworking speed 8,000 rpm 8,000 rpm

Standard scope of delivery

  • CNC control FANUC series 0i-TF Plus control system with handle
  • C axis control as standard on main and sub spindle
  • synchronously driven guide bush unit
  • convertible from sliding headstock to fixed headstock lathe
  • 6-station tool holder on the tool post
  • 4 (5) + α power-driven tools on tool post for cross machining
  • 4-station drilling unit including sleeves on the front and rear side
  • 4 + α power-driven tools for backworking including sleeves
  • broken cut-off tool detector
  • parts ejection detector
  • sub spindle for backworking
  • sub spindle air blow unit
  • parts receptacle
  • pneumatic unit with maintenance unit
  • sub spindle parts ejection detector
  • parts conveyor to remove the parts
  • oil lubrication system
  • separate coolant tank with level monitoring and coolant flow detector
  • bar feeder interface
  • levelling pads and adjustment screws
  • worklight
  • toolbox with special tools

  • metric input
  • tool nose radius compensation
  • constant cutting speed for main and sub spindle
  • multiple canned cycles
  • operating hours display
  • parts counter
  • automatic power supply cut-off function
  • interfaces to input and read data
  • program sequence controllable with handle
  • cylindrical interpolation
  • polar coordinate interpolation
  • polygon machining

  • bar feeding: bar feeder
  • chip disposal: chip conveyor
  • long parts ejector
  • beacon: acc. to customer requirements
  • high pressure unit: 50 to 300 bar
  • fire protection: small fire extinguishing system
  • complete filtration coolant
  • Tools in the internet at www.star-tools.eu

Metal cutting
innovation

Selection from our

range of tools

Your advantages

with star Micronics

  • Training
    STAR Micronics GmbH offers special training sessions for machine operators. You as customer can decide whether to have the training in our company or on your premises. The training is naturally exclusively for your personnel and specifically designed for your range of parts.
  • High pressure unit
    The machine can be retrofitted with high pressure units from 50 to 300 bar. In addition, other developments are available to you, such as programmable pressure control or complete filtration.
  • Cooling lubricants
    The machine can be run with oil or with aqueous emulsions. However, we recommend the use of oil as this is far more beneficial to the longevity of the machine.
  • Bar feeder
    All commonly available bar feeders (FMB/IEMCA/LNS) can be used with the machine. The software interface is included in the machine as standard.
  • Chip conveyor
    The machine can be fitted with a chip conveyor or a chip flushing system.
  • Peripherals
    Peripheral components such as parts separators, purchased coolant units (oil/emulsion), coolant filters, fire protection systems and TPM (tool process monitoring) can also be offered. A retrofit of peripheral components is always possible.
  • Service
    SSC star* Service Connect as 24/7 customer portal and online connectivity for your machines, tickets and service calls. A current overview can be called up at any time. In addition, you have access to the star* knowledge database

You will receive a quotation for a star* SB-20R with a standard configuration.

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SB-20R brochure

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SB-20R brochure

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