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Star SR-20RIV Type A

The SR-20RIV Type A provides exceptional performance and versatility within the 20mm class. Up to forty one tools can be mounted including six tools on the manual B axis tool post.

The flexibility of the SR-20RIV Type A is further enhanced by its ability to switch between guide bush mode (Swiss type) and non-guide bush mode.

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.

Star SR-20RIV Type A

WORKPIECE

DIAMETER Diameter 20mm / 22.2mm (OPT)
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)
  • 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
  • Manual B axis for angular machining on both spindles
  • 8 Station sub-spindle platen for maximum overlapping
  • Two independent deep hole drilling stations (main spindle)

Specification

MAIN SPINDLE SIDE
Number of axes8
Main spindle (headstock)Z1 / C1 axis
Main spindle powerX1 / Y1 axis
Max. machining diameter20 mm / 22.2 mm (OPTION)
Headstock stroke (Swiss type / NGB mode)205 MM / 50 MM
Main spindle power3.7 kW
Max spindle speed10,000 rpm
Main spindle tooling
Turning tool7 tools (Ø 12 mm)
DRILLING ARM SLEEVE HOLDER CAPACITY4 x Ø 22 MM SLEEVES (ER16)
POWER DRIVEN TOOL (PDT) POSITIONS3 + 3 (B AXIS) + 2 MODULAR STATIONS
MAX (PDT) SPEED8,000 rpm
KINEMATIC DIAGRAM
Star SR-20RIV Type A - Kinematic Diagram
SUB SPINDLE SIDE
Sub spindleX2 / 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 (ER16)
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

More information

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