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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)

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

    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 (12mm)

  • 4-Spindle Sleeve Holder

    NUMBER OF TOOLS
    Front 4 tools / Rear 4 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 (3-15/16 in)

  • Power Driven Attachment

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

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

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

    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-1 (X1, X2, Y1, Z1, Z2), 15m/min-1 (Y2)

  • 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)

  • Coolant Tank Capability

    170ℓ

  • Dimensions (W x D x H)

    2,334 x 1,200 x 1,700mm

  • 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
    Stationary Tool: 8 tools
    Power Driven Tool: 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

  • Power Driven Attachment Spindle Speed

    Max. 8,000min-1

  • Power Driven Attachment Drive Motor

    1.0kw (continuous)/1.2kw (5min./30%ED)

  • 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. 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
  10. Revolving guide bush unit
  11. Main/Sub collet
  12. C-axis control (main/sub)
  13. Spindle clamp unit (main/sub)
  14. 5-station tool holder (12mm)
  15. 2-station tool holder (12mm)
  16. Main tool post tool rotation drive unit
  17. Cross milling tool unit (3-tool type)
  18. Angle adjustable power-driven tool unit (Type A)
  19. B-axis controlled power-driven tool unit (Type B)
  20. 4-spindle sleeve holder
  21. Back 8-spindle unit
  22. Drive unit for power-driven attachment B
  23. Y-axis control for back-working tool post
  24. Parts ejector (Spring type)
  25. Parts conveyor
  26. Air purge for revolving guide bush
  27. Sub spindle air purge unit
  28. Sub spindle air blow unit
  29. Work light
  30. Leakage breaker
  1. Coolant flow detector
  2. Water removal unit
  3. Beacon
  4. Parts receptacle in the machine
  5. Parts separator unit A
  6. Main spindle inner tube
  7. Parts ejector (air cylinder type)
  8. Rotary magic guide bush unit
  9. Parts ejector with guide tube
  10. Parts stopper unit
  11. Coolant unit 2.5MPa
  12. Coolant unit 6.9MPa
  13. Coolant pipings
  14. Oil-hole drill type
  15. Automatic bar feeder interface
  16. Compliant with the RS-232C interface
  17. Transformer
  18. Safety relay module version
  19. Transformer CE marking version
  20. Transformer CE marking specifications