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SR-20JII Type C/N CNC Swiss-type Automatic Lathe

The new upgrade to the SR-20J model provides increased flexibility, more tooling configurations, and high rigidity with high accuracy.

  • Large tooling capacity for main operations
  • 8-Station back-woring unit with Y-axis and increased power.
  • Slanted dovetail construction on tool post provides high rigidity
  • Switchable G.B. and N.G.B. change-over

  • Max. Machining Diameter

    ø20mm (25/32in) OP: ø23mm (29/32in)

  • Max. Headstock Stroke

    STANDARD
    205mm (8in)

    R.M.G.B Type
    160mm (6-19/64in)

    N.G.B. Type
    Bar diameter x 2.5 (Max. 50mm) (Max. 1-31/32in)

  • Tool

    NUMBER OF TOOLS
    6 tools

    TOOL SHANK
    1/2” square

  • 5-Spindle Sleeve Holder

    NUMBER OF TOOLS
    Front 5 tools
    Rear 5 tools

    MAX. DRILLING CAPABILITY
    ø12mm (1/2in)

    MAX. TAPPING CAPABILITY
    M10 x P1.5

  • 2-Spindle Front Sleeve Holder

    NUMBER OF TOOLS (SLEEVE)
    2 Tools

    MAX. DRILLING CAPABILITY
    ø10mm (25/64in)

    MAX. DEPTH OF HOLE
    100mm (3-15/16in)

  • Power-Driven Attachment

    NUMBER OF TOOLS
    Cross Milling 3 tools (ER16 + Cartridge Type 2 Pos.
    Cross milling 3 tools (ER20 x 1, ER16 x 2) + Cartridge Type 2 Pos.

    MAX. DRILLING CAPABILITY
    ø10mm (25/64in)

    MAX. TAPPING CAPABILITY
    M8 x P1.25

    SPINDLE SPEED
    Max. 8,000min-1

    DRIVE MOTOR
    2.2kW

  • Rapid Feed Rate

    35m/min (X1, X2, Z1, Z2), 23m/min(Y2) : type B only

  • Main Spindle Indexing Angle

    C-axis control

  • Main Spindle Speed

    Max. 10,000min-1

  • Main Spindle Motor

    2.2kW (continuous) / 3.7kW (10min./25%ED)

  • Coolant Tank Capacity

    202ℓ

  • Dimensions (W x D x H)

    2,250 X 1,200 X 1,700mm

  • Weight

    2,750kg

  • Power Consumption

    4.8kVA

  • Maximum Chucking Diameter

    ø20mm (25/32in) OP: ø23mm (29/32in)

  • Max. Length for Front Ejection

    100mm (3-15/16in)

  • Max. Part Projection Length

    30mm (1-3in/16 in)

  • Unit Especially for Backworking

    NUMBER OF TOOLS
    8 Tools (Type B) & 4 Tools (Type A)

    MAX. DRILLING CAPABILITY
    Stationary Tool
    ø12mm (1/2in)
    Power-Driven Tool
    ø6mm (15/64in)

    MAX. TAPPING CAPABILITY
    Stationary Tool
    M10 x P1.5
    Power-Driven Tool
    M5 x P0.8

  • Power-driven Attachment Spindle Speed

    Max. 8,000min-1

  • Power-driven Attachment Drive Motor

    1.0kW

  • Sub-Spindle Min. Indexing Angle

    C-axis control

  • Sub-Spindle Speed

    Max. 10,000min-1

  • Sub-Spindle Motor

    2.2kW (continuous) / 3.7kW (10min/25%ED)

  1. CNC Unit FANUC 32i-B
  2. Operation panel 10.4 inch color LCD display
  3. Pneumatic unit
  4. Coolant level detector
  5. Automatic centralized lubrication unit
  6. Door interlock system
  7. Cs contouring control (Main/Sub)
  8. Spindle clamp unit (Main/Sub)
  9. Revolving guide bush unit
  10. Drive unit for revolving guide bush
  11. Air purge for revolving guide bush
  12. Main/Sub Collet
  13. 6-Station tool holder (12mm)
  14. Cross drilling unit (gang type tool post)
  15. 5-Spindle sleeve holder
  16. Broken cutoff tool detector
  17. Back working attachment
  18. Back 4-spindle unit (Type A)
  19. 8-Spindle back working unit with Y axis control function (Type B)
  20. Parts conveyor
  21. Sub spindle air purge unit
  22. Sub spindle air blow unit
  23. Drive unit for power-driven attachment B (4-spindle back working unit) (Type A)
  24. Drive unit for power-driven attachment (8-spindle back working unit) (Type B)
  25. Work light
  26. Leakage breaker
  1. Coolant flow detector
  2. Water removal unit
  3. Oil mist filter
  4. Beacon
  5. Main spindle inner tube
  6. Feed arrow steady rest
  7. Rotary magic guide bush unit
  8. Non-guide bush type
  9. Parts ejector (spring type)
  10. Parts ejector (air cylinder type)
  11. Parts ejector with guide tube
  12. Parts stopper unit
  13. Coolant unit (6.9MPa/2.5MPa/0.7MPa)
  14. Coolant unit signal cable
  15. Coolant unit power cable
  16. Coolant valve
  17. Coolant pipings
  18. Automatic bar feeder interface
  19. LAN/RS232C interface
  20. Transformer