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SK-51 Type A CNC Automatic Lathe

Star CNC introduces SK-51A, the first in their NEW line of automatic fixed headstock lathes.  This new ‘star’ incorporates the advanced Fanuc iHMI control system with ‘smart’ machining capabilities that easily and efficiently guide the operator through the manufacturing process.

  • Twin, 12-station turrets with identical travels allow balance machining on either spindle
  • A2-5 spindle chucking options grip parts where required
  • Slant bed design meets the demands of difficult-to-machine materials typically required by the medical, energy and aerospace industries
  • Extensive tooling options address complex part needs
  • Machine design offers easy access to the spindles and turrets
  • User-friendly touch screen control for easy access to on-board machine and control manuals

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  • Main Spindle

    MAX. MACHINING DIAMETER
    Ø51mm (2in.)

    MAX. MACHINING LENGTH FOR AUTOMATIC EJECTION
    125mm (4-59/64in)

    MAIN SPINDLE SPEED
    Max. 5,000min rpm

    MAIN SPINDLE MOTOR
    7.5kW (continuous)/11kW (15min.)

    MAIN SPINDLE INDEXING ANGLE
    C-axis control

    THROUGH-SPINDLE HOLE DIAMETER
    Ø52.5mm (2-1/16in)

    CHUCKING TYPE
    Hydraulic rotary cylinder

    COLLET CHUCK TYPE
    H-S22/DIN177E

  • Sub Spindle

    MAX. MACHINING DIAMETER
    Ø51mm (2in.)

    MAX. LENGTH FOR FRONT EJECTION
    125mm (4-59/64in)

    MAX. PARTS PROJECTION LENGTH
    80mm (3-5/32in)

    SUB SPINDLE SPEED
    Max. 5,000min rpm

    SUB SPINDLE MOTOR
    7.5kW (continuous)/11kW (15min.)

    SUB SPINDLE INDEXING ANGLE
    C-axis control

    THROUGH-SPINDLE HOLE DIAMETER
    Ø52.5mm (2-1/16in)

    CHUCKING TYPE
    Hydraulic rotary cylinder

    COLLET CHUCK TYPE
    H-S22/DIN177E

  • Path 1 Tool Post

    TYPE
    12-stationed turret

    NUMBER OF TOOLS
    Tool: 20mm (25/32in); Max. 2 tools/station
    Sleeve: Max. 3 counterface sleeves/station
    Power driven tool: Max. 2 tools/station

    POWER DRIVEN TOOL
    Spindle speed: Max. 6,000 min. rpm
    Drive motor: 4.5kW (continuous) 7.5kW (5 min.)
    Max. Drilling Capability: Ø16mm (5/8in)
    Max. Tapping Capability: M12 xP1.75
    Milling: Ø20mm (25/32in)

  • Path 2 Tool Post

    TYPE
    12-stationed turret

    NUMBER OF TOOLS
    Tool: 20mm (25/32/in); Max. 2 tools/station
    Sleeve: Max. 3 counterface sleeves/station
    Power driven tool: Max. 2 tools/station

    POWER DRIVEN TOOL
    Spindle speed: Max. 6,000 min. rpm
    Drive motor: 4.5kW (continuous) 7.5kW (5 min.)
    Max. Drilling Capability: Ø16mm (5/8in)
    Max. Tapping Capability: M12 xP1.75
    Milling: Ø20mm (25/32in)

  • Rapid feed rate

    X1, X2
    20m/min

    Y1, Y2
    15m/min

    Z1, Z2, Z3
    40m/min

    C1, C2 550 rpm

  • Coolant tank

    458ℓ

  • Coolant pump

    1.5kW x 1 for each turret
    0.4kW x 1 for each spindle

  • Dimensions

    2,800mm W x 2,070mm D x 2,130mm H

  • Weight

    6,600kg

  1. CNC unit FANUC 32i-B
  2. Operation panel 15-inch color LCD display
  3. Pneumatic unit
  4. Hydraulic unit
  5. Automatic centralized lubrication unit
  6. Coolant level detector
  7. Door interlock system
  8. Cut-off tool breakage detection function (software)
  9. Cs contouring control (Main/Sub)
  10. Spindle clamp unit (Main/Sub)
  11. Spindle air purge system (Main/Sub)
  12. Pneumatic cylinder type product ejection system (with ejection detection system)
  13. Sub spindle mix blow system (Air & Coolant)
  14. Tool drive unit (Turret type tool post)
  15. Parts catcher
  16. Parts conveyor
  17. Work light
  18. Leakage breaker
  19. Coolant flow detector
  20. Water removal unit
  21. Cut-off tool breakage detection system (mechanical type)
  22. Main/Sub spindle upper air blow (for power chuck)
  23. Foot switch (Main/Sub chuck opening and closing)
  24. Tool setter
  25. Automatic bar feeder interface
  26. LAN/RS232C interface
  1. Hinge Belt Chip Conveyor
  2. Microfiltration Chip Conveyor
  3. Coolant Chiller
  4. Beacon
  5. High Pressure Coolant Pump
  6. Main/Sub chuck (to be selected from the tooling system)
  7. Main spindle inner tube
  8. Power Chuck for Main/Sub Spindle
  9. Collet Chuck for Main/Sub Spindle
  10. Coolant pump extension (2.5 MPa)
  11. Coolant unit (6.9MPa)
  12. Coolant unit signal cable
  13. Coolant system piping 6.9MPa
  14. Transformer CE marking version
  15. Transformer CE marking cable
  16. CE marking version
  17. Power Chuck Type - 6 inch