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SR-20R IV Type A & B CNC Swiss-type Automatic Lathe

Complex machining functions adaptable to multiple industries where precision and accuracy are essential

  • 27-position tool station accommodates up to 41 tools
  • Full B-axis for cross drilling/milling with a variety of tooling options
  • Tool post designed especially for backworking, with Y-axis control function as standard
  • Rigid construction provides stability for very close tolerance work and extended tool life
  • Built-in motor and built-in sensor for improved indexing accuracy
  • Equipped with Star Motion Control System for higher accuracy and easier operability

  • Max. Machining Diameter

    ø20mm (25/32in)

  • Max. Headstock Stroke

    STANDARD
    205mm (8in)

    NON-GUIDE BUSH TYPE
    Bar diameter x 2.5 (max. 50mm) (max. 1-31/32in)

  • Tool

    5 tools on the front + 2 tools on the rear (1/2”)

  • 4-Spindle Sleeve Holder

    NUMBER OF TOOLS
    Front 4 tools
    Rear 2 tools (max. 4 tools)

    MAX. DRILLING CAPABILITY
    ø12mm (1/2in)

    MAX. TAPPING CAPABILITY
    M10 x P1.5

  • Power Driven Att.

    NUMBER OF TOOLS
    Cross Milling
    3 tools
    Cartridge Type
    At 2 position

    NUMBER OF TOOLS (TYPE A)
    Power-driven tool: At 1 position (front 3 tools + rear 3 tools)

    NUMBER OF TOOLS (TYPE B)
    Power-driven tool with B axis: At 1 position (front 3 tools + rear 3 tools)

    MAX. DRILLING CAPABILITY
    ø10mm (25/64in)

    MAX. TAPPING CAPABILITY
    M8 x P1.25

  • Rapid Feed Rate

    35m/min-1 (X1, X2, Y1, Z1, Z2), 15m/min-1 (Y2)
    198,000◦/min(C), 27,000◦/min (B): 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 (10 min/25% ED)

  • 2-Spindle Front Sleeve Holder

    NUMBER OF TOOLS (SLEEVE)
    2 tools

    MAX. DRILLING CAPABILITY
    10mm (25/64in)

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

  • Power-Driven Att. Spindle Speed

    Max. 8,000min-1

  • Power-Driven Att. Drive Motor

    2.2kw

  • Coolant Tank Capability

    170ℓ

  • Dimensions (W x D x H)

    2,334 x 1,200 x 1,695mm

  • Weight

    2,600kg

  • Power Consumption

    4.7KVA

  • Max. Chucking Diameter

    ø20mm (25/32in)

  • Max. Length for Front Ejection

    80mm (3-5/32in)

  • Max. Parts Projection Length

    30mm (1-3/16in)

  • Back 8-Spindle Unit

    NUMBER OF TOOLS
    8 tools

    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

  • Sub Spindle Indexing Angle

    C-axis control

  • Sub Spindle Speed

    Max. 10,000min-1

  • Sub Spindle Motor

    Built-in motor drive 2.2kw (continuous) / 3.7kw (10min/25% ED)

  1. CNC unit Fanuc 31i-B (Type A)
  2. CNC unit Fanuc 31i-B5 (Type B)
  3. Pneumatic unit
  4. Coolant level detector (lower limit)
  5. Automatic centralized lubrication unit
  6. Door interlock system
  7. Revolving guide bush unit
  8. Spindle clamp unit (main/sub)
  9. Cs contouring control (main/sub spindle)
  10. 5-station tool holder (1/2")
  11. 2-station tool holder (1/2")
  12. 4-spindle sleeve holder
  13. Main tool post tool rotation drive unit
  14. Angle adjustable power-driven tool unit (Type A)
  15. Power-driven tool unit with B axis (Type B)
  16. Cross milling tool unit (3-tool type)
  17. Parts conveyor
  18. Parts ejection detector
  19. Broken cutoff tool detector
  20. Back 8-spindle unit
  21. Parts separator
  22. Sub spindle air purge unit
  23. Sub spindle air blow unit
  24. Leakage breaker
  25. Tool kit
  1. Coolant flow detector
  2. Transformer
  3. Chip conveyor
  4. Parts separator unit A
  5. Barstock gripping unit
  6. Beacon
  7. Main spindle inner tube
  8. High pressure coolant types (2.5MPa/6.9MPa)
  9. Oil-hole drill type
  10. Parts ejector with guide tube
  11. Parts stopper unit
  12. Parts ejector (air cylinder type)
  13. Transformer CD marking specifications
  14. Program utility Jr.
  15. Transformer CE marking version