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The SV-38R combines the fast processing ability of a traditional platen type sliding head lathe with the flexibility of a turret machine. The main spindle benefits from a gang type tool post and an 10 station turret to enable simultaneous machining operations. The 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.

Fanuc’s high specification 31i-B5 control delivers full five axis capability enabling highly complex components to be processed. The B-axis tool holders on the turret enable angular features to be machined on both the main and sub-spindle.

The powerful sub-spindle with independent 8 station platen increases overlapped machining possibilities. The Y2 axis on the sub-spindle platen allows both cross working and front facing power tools to be mounted in any station.

The flexibility of the STAR SV-38R is further enhanced by its ability to switch between guide bush mode (Swiss type) and non-guide bush mode.

Star SV-38R

WORKPIECE

DIAMETER Diameter 38mm / 42mm (NGB)
LENGTH Length 350mm / 95mm
GEOMETRY Geometry
C AXIS C Axis MAIN + SUB SPINDLE

Benefits

  • Standard machining diameter 38mm (42mm in NGB mode)
  • Z1 Stroke of 350mm in Swiss mode, 95mm in non-guide bush mode
  • Z3 axis enables SUPER-POSITION control for increased overlap
  • Switchable between guide bush and non-guide bush modes
  • Main spindle speed 7,000 rpm, sub-spindle speed 7,000 rpm
  • Built-in type main and sub-spindle motors for improved indexing accuracy
  • Programmable B axis for angular machining
  • STAR MOTION CONTROL to minimize idle time
  • 8 Station sub-spindle platen for maximum overlapping

Specification

MAIN SPINDLE SIDE
Number of axes12
Main spindle (headstock)Z1 / C1 axis
MAIN SPINDLE PLATEN / TURRETX1 / Y1 / X3 / Y3 / Z3 / B3 AXIS
Max. machining diameter (SWISS TYPE / NGB MODE)38 MM / 42 MM
HEADSTOCK STROKE (SWISS TYPE / NGB MODE)350 MM / 95 MM
MAIN SPINDLE POWER11.0 KW
MAIN SPINDLE SPEED7,000 rpm
Main spindle tooling
Turning tool5 TOOLS @ 16 MM SQ (GANG) + 10 TOOLS (TURRET)
TURRET SLEEVE HOLDER CAPACITYØ 22 MM SLEEVES (ER16) + Ø 32 MM SLEEVES (ER20)
POWER DRIVEN TOOL (PDT) POSITIONS4 GANG TOOLS + 10 TURRET STATIONS
max (pdt) Speed5,000 RPM (GANG) / 5700 RPM (TURRET)
KINEMATIC DIAGRAM
Star SB-20R Type G - Kinematic Diagram
SUB SPINDLE SIDE
Sub spindleX2 / Y2 / Z2 / C2 AXIS
Max. chucking diameter42 MM
SUB SPINDLE POWER7.5 KW
SUB SPINDLE SPEED7,000 rpm
Sub spindle tooling
BACK-WORKING PLATEN POSITIONS8
MAX DRILL SLEEVE CAPACITYER25
POWER DRIVEN TOOL (PDT) POSITIONS5
MAX (PDT) SPEED5,000 RPM
FMBBAR FEED DIMENSION A (MM)
Turbo 5-554416 (3.2M)4516 (4.2M)7416 (6.2M)
Star SB-20R Type G - Dimensions

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