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Star ST-38

The ST-38 is the ideal sliding head solution for complex mill-turn parts within the 40mm diameter range. Star’s flagship model is packed with functionality that enables challenging parts to be processed in one set-up.

Three 10 station turrets allow up to 70 tools to be loaded, each tool can be easily removed with Star’s unique clamping mechanism permitting fast set-up changes. The main spindle’s lower turret includes an independent Z3 axis. This axis allows two different features to be machined simultaneously (Z1 + Z3) using Star’s “super-position” control mode.

An independent turret is utilized on the sub-spindle where components up to 150mm can be processed and front ejected. STAR MOTION CONTROL is also included to minimize idle time and thus further reduce cycle time.

Star ST-38

WORKPIECE

DIAMETER Diameter 38mm / 40mm (OPT)
LENGTH Length 350mm
GEOMETRY Geometry
C AXIS C Axis MAIN + SUB SPINDLE

Benefits

  • Standard machining diameter 38mm (40mm optional)
  • Z1 Stroke of 350mm
  • Twin turrets on main spindle for balanced turn-mill operations
  • Powerful 11.0 Kw main spindle
  • Z3 axis enables SUPER-POSITION control for increased overlap
  • YA2 axis on sub-spindle enables off-center pick up
  • Tool pre-setter included for easy tool set-up
  • STAR MOTION CONTROL to minimize idle time
  • Independent turret for sub-spindle for maximum overlap

Specification

MAIN SPINDLE SIDE
Number of axes12
Main spindle (headstock)Z1 / C1 AXIS
MAIN SPINDLE TURRETSX1 / Y1 / X3 / Y3 / Z3 AXIS
MAX MACHINING DIAMETER38 MM / 40 MM (OPTION)
HEADSTOCK STROKE)350 MM
MAIN SPINDLE POWER11.0 KW
MAIN SPINDLE SPEED7,000 rpm
MAIN SPINDLE TOOLING
Turning tool16 MM SQ + 20 MM SQ (CUT-OFF)
TURRET SLEEVE HOLDER CAPACITYØ 22 MM SLEEVES (ER16) + Ø 32 MM SLEEVES (ER20)
MAX DRIVEN TOOL (PDT) POWER4.0 KW
MAX (PDT) SPEED5,700 RPM
KINEMATIC DIAGRAM
Star ST-38 - Kinematic Diagram
SUB SPINDLE SIDE
Sub spindleX2 / Y2 / Z2 / C2 / YA2 AXIS
Max. chucking diameter38 MM / 40 MM (OPTION)
SUB SPINDLE POWER7.5 KW
SUB SPINDLE SPEED7,000 RPM
SUB SPINDLE TOOLING
TURNING TOOL16 MM SQ
TURRET SLEEVE HOLDER CAPACITYØ 22 MM SLEEVES (ER16) + Ø 32 MM SLEEVES (ER20)
MAX DRIVEN TOOL (PDT) POWER4.0 KW
MAX SPINDLE (PDT) SPEED5,700 RPM
FMBBAR FEED DIMENSION A (MM)
Turbo 5-554416 (3.2M)4516 (4.2M)7416 (6.2M)
Star SB-20R Type G - Dimensions

More information

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