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sv-20-10-1

The SV-20R 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 8 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.

sv-20-10-1

WORKPIECE

DIAMETER Diameter 20mm / 22.2mm
LENGTH Length 205mm / 50mm
GEOMETRY Geometry
C AXIS C Axis MAIN + SUB SPINDLE

Benefits

  • Standard machining diameter 20mm (22.2mm optional)
  • Z1 Stroke of 205mm in Swiss mode (Guide Bush)
  • Z3 axis enables SUPER-POSITION control for increased overlap
  • Switchable between guide bush and non-guide bush modes
  • Main spindle speed 10,000 rpm, sub-spindle speed 10,000 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 / Z3 / C1 AXIS
MAIN SPINDLE PLATENX1 / Y1 / X3 / Y3 / B3 AXIS
Max. machining diameter20 MM / 22.2 MM (OPTION)
HEADSTOCK STROKE (SWISS TYPE / NGB MODE)205 MM / 50 MM
MAIN SPINDLE POWER5.5 KW
MAIN SPINDLE SPEED10,000 rpm
MAIN SPINDLE TOOLING
TURNING TOOL7 TOOLS @ 12 MM SQ (GANG) + 8 TOOLS (TURRET)
TURRET SLEEVE HOLDER CAPACITYØ 22 MM SLEEVES (ER16) + Ø 32 MM SLEEVES (ER20)
POWER DRIVEN TOOL (PDT) POSITIONS5 GANG TOOLS + 8 TURRET STATIONS
MAX (PDT) SPEED8,000 RPM (GANG) / 5750 RPM (TURRET)
KINEMATIC DIAGRAM
Star SR-20RIV Type B - Kinematic Diagram
SUB SPINDLE SIDE
Sub spindleX2 / Y2 / Z2 / C2 AXIS
MAX. CHUCKING DIAMETER20 MM / 22.2 MM (OPTION)
SUB SPINDLE POWER3.7 KW
SUB SPINDLE SPEED10,000 rpm
SUB SPINDLE TOOLING
BACK-WORKING PLATEN POSITIONS8
MAX DRILL SLEEVE CAPACITYER16
POWER DRIVEN TOOL (PDT) POSITIONS8
MAX (PDT) SPEED8,000 RPM
FMBBAR FEED DIMENSION A (MM)
Micromag 08-203415 (1.6M)5015 (3.2M)6015 (4.2M)
Minimag 2-203415 (1.6M)5015 (3.2M)6015 (4.2M)
Turbo 2-203215 (2.2M)4215 (3.2M)5215 (4.2M)
Turbo 3-363320 (2.2M)4320 (3.2M)5320 (4.2M)
Star SB-20R Type G - Dimensions

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