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SP-20 Swiss-type Automatic Lathe

Star’s newest model, the SP-20, offers substantial versatility in a small-scale footprint and modest price, with the capability of machining 1-inch diameter material.  This machine utilizes a gate-shaped tool post designed to encircle the guide bush for front side machining equipped with 8 turning tools, 5-position sleeve holder and 7-spindle power-driven tool unit with 5 cartridge positions for modular units. A wide array of these modular units such as Cross Drilling, Front Drilling, Slotting, Thread Whirling and Polygon Machining enhances the range of machining options.

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  • Max. Machining Diameter

    ø20mm (29/32in) OP: ø25.4mm (1in)

  • Max. Headstock Stroke

    STANDARD
    205mm(8in) MR25 : 196mm(7-15/16in)

    R.M.G.B. TYPE
    155mm(6-3/32in)

    N.G.B. TYPE
    Bar diameter X2.5(Max.50mm)(Max.1-31/32in)

  • Tool

    8 tools (12mm)

    7 tools (16mmX3, 12mmX4)

  • Sleeve Holder

    NUMBER OF TOOLS
    4 tools (ø32X2, ø22X2)
    5 tools (ø22X5)

    MAX. DRILLING CAPABILITY
    12mm(1/2in OP : 13mm(33/64in)

    MAX. TAPPING CAPABILITY
    M10XP1.5 (OP : M12XP1.75)

  • Power Driven Attachment

    NUMBER OF TOOLS
    Cross drilling X 2 tools + cartridge type 5 pos.

    MAX. DRILLING CAPABILITY
    ø8mm(ø5/16in)

    MAX. TAPPING CAPABILITY
    M6XP1.0

  • Main Spindle Indexing Angle

    C-axis control

  • Main Spindle Speed

    Max.10,000min-1 (OP : Max.8,000min-1)

  • Main Spindle Motor

    2.2kW (CONT.)/3.7kW (15min/60% ED)

  • Rapid feed rate

    35m/min (X1, Y1, Z1, X2, Z2)

  • Power-Driven Attachment Spindle Speed

    Max.8,000min-1

  • Power-Driven Attachment Drive Motor

    1.4kW

  • Coolant Tank Capability

    190ℓ

  • Dimensions (W x D x H)

    2,100X1,200X1,785

  • Weight

    2,250kg

  • Power Consumption

    5.52kVA

  • Max. Chucking Diameter

    ø20mm (29/32in) OP: ø25.4mm (1in)

  • Max. Length for Front Ejection

    105mm(4-9/64in)

  • Max. Parts Projections Length

    30mm(1-3/16in)

  • 4 Spindle Backworking Unit

    NUMBER OF TOOLS

    Stationary Tool
    Max. 4 tools

    Power Driven Tool
    Max. 4 tools

    MAX. DRILLING CAPABILITY
    Stationary Tool
    8mm(5/16in OP : 10mm(25/64in)

    Power Driven Tool
    6mm(15/64in)

    MAX. TAPPING CAPABILITY
    Stationary Tool
    M6XP1.0 (OP:M8XP1.25)

    Power Driven Tool
    M5XP0.8

  • Power Driven Attachment Spindle Speed

    Max.8,000min-1

  • Power Driven Attachment Spindle Motor

    0.75kW

  • Sub Spindle Indexing Angle

    C-axis control

  • Sub Spindle Speed

    Max.10,000min-1 (OP : Max.8,000min-1)

  • Sub Spindle Motor

    1.5kW (CONT.)/2.2kW (15min/60% ED)

  1. CNC unit FANUC 0i-TF Plus
  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. Broken cutoff tool detector
  8. Water removal unit
  9. Cs contouring control (Main/Sub)
  10. Spindle clamp unit (Main / Sub)
  11. Revolving guide bush unit
  12. Drive unit for revolving guide bush
  13. Air purge for revolving guide bush
  14. Main / Sub collet
  15. Tool holder (7-station or 8-station)
  16. Sleeve holder (4-spindle or 5-spindle)
  17. 7-spindle cross drilling unit
  18. Sub spindle air purge unit
  19. Sub spindle air blow unit
  20. 4-spindle backworking unit
  21. Drive unit for power-driven attachment (4-spindle backworking unit)
  22. Work light
  23. Leakage breaker
  1. Torque up specification (main/sub)
  2. Coolant flow detector
  3. Beacon
  4. Parts conveyor
  5. Built-in stocker
  6. Product separator system, A-type
  7. Main spindle inner tube
  8. Parts ejector with Spring type
  9. Parts ejector (Air cylinder type)
  10. Parts ejector with guide tube
  11. Parts stopper unit
  12. Coolant unit (2.5MPa / 6.9MPa)
  13. Coolant unit signal cable
  14. Coolant unit power cable
  15. Coolant valve (2.5MPa / 6.9MPa)
  16. Coolant pipings
  17. Automatic bar feeder interface
  18. LAN / RS232C interface
  19. Transformer
  20. Transformer CE marking version
  21. Transformer CE marking-version cable
  22. CE / UKCA marking specifications