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Discontinued

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

Optimum cost performance whether you choose the Swiss Type C or Non-Guide Bush Type N machine

  • Innovative machine configuration provides high productivity by significantly reducing non-cutting time
  • Unique “slanted dovetail slideway structure” tool post design helps maintain dimensional accuracy while also extending cutting tool life
  • Enhanced tooling capitalizes on basic and advanced machining applications
  • Optional 3-spindle back drill unit and back working cross drill unit increases the flexibility of operations carried out in the sub spindle

  • Max. Machining Diameter

    ø20mm (25/32in)

  • Max. Headstock Stroke

    STANDARD
    Type C
    205mm (8in)
    Type N
    Bar diameterx2.5

    WITH RMGB
    Type C
    172mm (6-25/32in)
    Type N
    (Max. 55mm) (Max.2-11/64in)

  • Tool

    NUMBER OF TOOLS
    6 tools

    TOOL SHANK
    12mm

  • 4-Spindle Sleeve Holder

    NUMBER OF TOOLS
    Front 4 tools
    Rear 4 tools
    Type N

    MAX. DRILLING CAPABILITY
    ø10mm (25/64in)

    MAX. TAPPING CAPABILITY
    M8 x P1.25

  • 2-spindle front sleeve holder

    NUMBER OF TOOLS (sleeve)
    2 tools

    MAX. DRILLING CAPABILITY
    ø8mm (5/16in)

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

  • Power-Driven Attachment

    NUMBER OF TOOLS
    Cross milling: 3 tools
    Cartridge type: at 2 position

    MAX. DRILLING CAPABILITY
    ø8mm (5/16in)

    MAX. TAPPING CAPABILITY
    M6 x P1.0

    SPINDLE SPEED
    Max. 8,000min-1

    DRIVE MOTOR
    1.2kw

  • Rapid Feed Rate

    35m/min (X, Y, Z, XB, ZB)

  • Main Spindle Indexing Angle

    C-axis control

  • Main Spindle Speed

    Max. 10,000min-1

  • Main Spindle Motor

    2.2kw (continuous) / 3.7kw (15min./60%ED)

  • Coolant Tank Capacity

    170ℓ

  • Dimensions (W x D x H)

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

  • Weight

    2,200kg

  • Power Consumption

    5.2KVA

  • Maximum Chucking Diameter

    ø20mm (25/32in)

  • Max. Length for Front Ejection

    80mm (3-5/32in)

  • Max. Part Projection Length

    30mm (1-3/16 in)

  • 4-Spindle Unit for Backworking

    NUMBER OF TOOLS
    4 tools

    MAX. DRILLING CAPABILITY
    Stationary Tool
    ø8mm (5/16in)
    Power-Driven Tool
    ø5mm (3/16in)

    MAX. TAPPING CAPABILITY
    Stationary Tool
    M8 x P1.25
    Power-Driven Tool
    M4 x P0.7

  • Power-driven attachment spindle speed

    Max. 8,000min-1

  • Power-driven attachment drive motor

    0.5kw

  • Sub-Spindle Indexing Angle

    C-axis control

  • Sub-Spindle Speed

    Max. 8,000min-1

  • Sub-Spindle Motor

    1.5kw (continuous) / 2.2kw (15min./50% ED)

  1. CNC Unit (Fanuc 31i-B)
  2. Operation panel 10.4 inch color LCD display
  3. Pneumatic unit
  4. Automatic centralized lubrication unit
  5. Coolant level detector
  6. Door interlock system
  7. Broken cutoff tool detector
  8. Parts ejection detector
  9. Drive unit for revolving guide bush (Type C only)
  10. Revolving guide bush unit (Type C only)
  11. Main / Sub collet
  12. Spindle clamp unit (Main/Sub)
  13. Spindle clamp unit (Main/Sub)
  14. 6-station tool holder (12mm)
  15. Drive system for power-driven attachment (including 3 spindle cross milling unit)
  16. 4-spindle sleeve holder
  17. 2-spindle sleeve holder
  18. Back 4-spindle unit
  19. Drive unit for power-driven attachment B
  20. Parts ejector (Spring type)
  21. Parts conveyor
  22. Air purge for revolving guide bush (Type C only)
  23. Main spindle air purge unit (Type N only)
  24. Sub spindle air purge unit
  25. Sub spindle air blow unit
  26. Work light
  27. Leakage breaker
  1. Coolant flow detector
  2. Water removal unit
  3. Beacon
  4. Parts separator unit A
  5. Main spindle inner tube (Type C & Type N differ)
  6. Rotary magic guide bush (Type C only)
  7. Parts ejector (Air cylinder type)
  8. Parts ejector with guide tube (Type C only)
  9. Parts stopper unit (Type C only)
  10. Coolant unit 1.5MPa
  11. Coolant unit 6.9MPa
  12. Coolant pipings
  13. Spindle 15 degree indexing unit
  14. Stopper (Type N only)
  15. Automatic bar feeder interface
  16. Compliant with the RS-232Cf interface
  17. Transformer
  18. Safety relay module version