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STAR SR 20JN

Star
THE ADVANTAGES
SR-20JN – the fixed headstock variation of the SR-20J. Allows you to benefit from the proven star* advantages also with conventional turning. The removal of the guide bush unit, shorter remnants and even shorter set-up times result in further cost reductions in the production of short-turned parts.

  • FANUC 31i-B control system

  • C-axis control as standard on main and sub spindle

  • machine system and kinematics identical to SR-20J

  • high cost reduction (fixed headstock variation) through:
    • short remnants

    • lower requirements for bar material

    • no guide bush unit

    • shorter set-up times


KINEMATICS & TOOLS
  • 6 turning tools

  • front and rear side each with 4 drilling tools

  • 5 + α power-driven tools on the tool post

  • 4 + α power-driven tools for backworking

  • 2 deep hole drilling stations

  • 7 axes

    • Teknisk data

    • SPECIFICATIONS
    • Diameter20 mm / 23 mm (option)
    • Length55 mm
    • C axisMain spindle
    • C axisSub spindle
    • KINEMATICS OF THE SR-20JN
    • FRONT SIDE
    • Number of axes7
    • Main spindle (headstock)Z1 / C1 axis
    • Tool postX1 / Y1 axis
    • Max. machining diameter20 mm / 23 mm (option)
    • Max. headstock stroke (sliding head)55 mm
    • Max. drive power3.7 kW
    • Max. main spindle speed10,000 rpm
    • Tools on the tool post
    • Turning tools6 tools (□ 12 mm)
    • Drilling tools (4-spindle sleeve holder)4 tools (Ø 22 mm sleeve)
    • Cross driven tools5 tools (ER16)
    • (alternatively 3 tools ER16 + 2 tools ER20)
    • Speed8,000 rpm
    • SUB SPINDLE
    • Sub spindleX2 / Z2 / C2 axis
    • Max. chucking diameter20 mm / 23 mm (option)
    • Drive power2.2 kW
    • Max. sub spindle speed8,000 rpm