SB-12R Type G
CNC Swiss-type Automatic Lathe

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The SB-12R Type G offers high-precision machining in a compact, flexible design. With its advanced CNC capabilities, this Swiss-type lathe is ideal for producing small, intricate parts with superior accuracy and minimal cycle times. Designed for efficiency, it allows for a variety of operations including turning, milling, and drilling.
  • Spindle speeds up to 15,000 RPM
  • Supports up to 22 tool positions for diverse applications
  • Compact structure for space-saving production
15,000 RPM | 12 mm Bar Capacity | 6 Axis | Simultaneous Machining with Sub-Spindle

Lathe

SB-12R Type G lathe Machine Specifications and Accessories Overview

Discover the full capabilities of the SB-12R Type G CNC Swiss-type Automatic Lathe, including its standard specifications, backworking attachments, and diverse range of accessories. Learn about the standard features that come with the machine, as well as optional enhancements that can be customized to meet your specific machining requirements. Whether you seek core specifications or customization for specialized tasks, this guide will help you explore all options to boost performance and productivity. Contact us today for a custom quote to see how the SB-12R Type G can boost your operations. 

  • Max. Machining Diameter

    ø13mm (33/64 in)

  • Max. Headstock Stroke

    G. B. TYPE
    205mm (8in)

    NON G. B. TYPE
    Bar diameter x 2.5 (Max. 30mm) (Max. 1-3/16in)

  • 4-Spindle Sleeve Holder

    NUMBER OF TOOLS
    Front: 4 tools / Rear: 4 tools

    MAX. DRILLING CAPABILITY
    ø10mm (25/64 in)

    MAX. TAPPING CAPABILITY
    M10 x P1.5

  • Power-Driven Attachment – 4-SPINDLE CROSS DRILLING UNIT

    NUMBER OF TOOLS
    Cross Power Driven Att.: 4 tools (ER 16)

    MAX. DRILLING CAPABILITY
    ER 16: ø7mm(9/32in)

    MAX. TAPPING CAPABILITY
    ER 16: M6×P1.0

    SPINDLE SPEED
    ER 16: max.6,000min-1

    DRIVE MOTOR
    1.0kW (continuous) / 1.2kW (5min./30%ED)

  • Power-Driven Attachment – 5-SPINDLE CROSS DRILLING UNIT

    NUMBER OF TOOLS
    Cross Power Driven Att.: 5 tools (ER 11)

    MAX. DRILLING CAPABILITY
    ER 11: ø5mm (3/16in)

    MAX. TAPPING CAPABILITY
    ER 11: M5×P0.8

    SPINDLE SPEED
    ER 11: max.10,000min-1

    DRIVE MOTOR
    1.0kW (continuous) / 1.2kW (5min./30%ED)

  • Power-Driven Attachment – CARTRIDGE TYPE CROSS DRILLING UNIT

    NUMBER OF TOOLS
    Cross Power Driven Att. : 2 tools (ER 11)
    Cartridge type: 3 Pos

    MAX. DRILLING CAPABILITY
    ER 16: 5-Spindle & 5-Spindle High Speed: ø7mm (9/32in)
    ER 11: 5-Spindle: ø6mm; 5-Spindle High Speed: ø5mm

    MAX. TAPPING CAPABILITY
    ER 16: M6×P1.0
    ER 11: M5×P0.8

    SPINDLE SPEED
    ER 16: max. 6,000 min-1
    ER 11: 5-Spindle: max. 8,000 min-1; 5-Spindle High Speed: max. 10,000 min-1

    DRIVE MOTOR
    1.0kw (continuous) / 1.2kw (5min./30%ED)

  • Rapid Feed Rate

    35m/min (X1,Y1,Z1,X2,Z2)

  • Main Spindle Indexing Angle

    C-axis control

  • Main Spindle Speed

    max. 15,000 min-1

  • Main Spindle Motor

    2.2kW (continuous) / 3.7kW(10min./25%ED)

  • Coolant Tank Capacity

    180ℓ

  • Dimensions (W × D × H)

    2,070 x 1,177 x 1,760mm
    Center Height – 1,060mm

  • Weight

    1,750kg

  • Power Consumption

    4.5kVA

  • Max. Chucking Diameter

    ø13mm(33/64in)

  • Max. Length For Front Ejection

    80mm(3-5/32in)

  • Max. Parts Projection Length

    30mm(1-11/64in)

  • Back 4-Spindle Unit

    NUMBER OF TOOLS
    4 tools

    MAX. DRILLING CAPABILITY
    Stationary Tool
    ø8mm (5/16in)

    Power-Driven Att.
    ø6mm (15/64in)

    MAX. TAPPING CAPABILITY
    Stationary Tool
    M6 × P1.0

    Power-Driven Att.
    M5 × P0.8 : OP

  • Power-Driven Att. Spindle Speed

    Max. 8,000min-1

  • Power-Driven Att. Drive Motor

    0.75kW

  • Sub Spindle Indexing Angle

    C-axis control

  • Sub Spindle Speed

    Max. 12,000min-1

  • Sub Spindle Speed Control

    AC spindle drive

  • Sub Spindle Motor

    0.55kw(Continuous) / 1.1kW (15min./40%ED)

  1. CNC unit Fanuc 0i-TD
  2. Operation panel 8.4” color LCD display
  3. Pneumatic unit
  4. Automatic centralized lubrication unit
  5. Coolant level detector
  6. Door interlock system
  7. Broken cutoff tool detector
  8. Parts ejection detector
  9. Drive unit for revolving guide bush
  10. Revolving guide bush unit
  11. Main/Sub collet
  12. C-axis control (Main/Sub)
  13. Spindle clamp unit (Main/Sub)
  14. Tool holder
  15. 4-spindle cross drilling unit
  16. 4-spindle sleeve holder
  17. Back 4-Spindle unit
  18. Air purge for revolving guide bush
  19. Air purge for main spindle
  20. Sub spindle air purge unit
  21. Sub spindle air blow unit
  22. Work light
  23. Leakage breaker
  1. Coolant flow detector
  2. Water removal unit
  3. Beacon
  4. Parts conveyor
  5. Parts receptacle in the machine
  6. Parts separator unit A
  7. Main spindle inner tube
  8. 5-spindle cross drilling unit
  9. Cartridge-type 5-spindle cross drilling unit
  10. Cartridge-type 5-spindle high-speed cross drilling unit
  11. Drive unit for power-driven attachment B
  12. Parts ejector (Air cylinder type)
  13. Parts ejector (Spring type)
  14. Parts ejector with guide tube
  15. Parts stopper unit
  16. Coolant unit (6.9MPa/2.5MPa)
  17. Coolant unit signal cable
  18. Coolant unit power cable
  19. Coolant valve
  20. Coolant pipings
  21. Automatic bar feeder interface
  22. Compliant with RS-232C interface
  23. Transformer
  24. Safety relay module version
  25. Transformer CE marking version
  26. Transformer CE marking specifications

SB-12R

Discover the power of the SB-12R Type G CNC Swiss-type Automatic Lathe! Download our brochure to learn about its features and specifications. If you have questions or need more info, just submit your request, and our team will help you. Elevate your production with the SB-12R Type G!

How Can the SB-12R Type G Improve Your Machining Process?

Process

Beyond its detailed technical specifications, the SB-12R Type G offers significant operational benefits tailored to industries requiring intricate, high-precision part production. This machine combines flexibility and efficiency, making it a leading solution for sectors such as automotive, medical, electronics, and aerospace manufacturing.

With a high-speed main spindle operating at up to 15,000 RPM, the SB-12R excels in machining small components with unmatched accuracy. Its dual-mode capability—featuring both guide bush and non-guide bush operations—further increases versatility, making it suitable for short and long workpieces. The machine also integrates seamlessly into high-production environments, ensuring reduced cycle times and consistent performance.

SB-12R Type G CNC Swiss-type Automatic Lathe Screw machine

Additionally, the advanced Fanuc control system enhances precision and provides operators with greater control over complex tasks, while the compact, ergonomic design ensures that the machine fits into most manufacturing setups without compromising on power or functionality. The integrated safety systems and automated maintenance features further support continuous, reliable operation with minimal downtime, adding to the long-term cost-effectiveness for users. These operational enhancements make the SB-12R a top choice for manufacturers looking to balance high-speed production with precision machining in demanding industries.

Why Choose Star Swiss-Style Lathes?

Star CNC Machine Tool Corp., a division of Star Micronics Co., Ltd. of Japan, is a global leader in Swiss-type turning machines, known for producing small, complex, and precise metal components. Since 1948, Star CNC has delivered reliable, high-performance lathes that excel in both high-volume production and intricate part fabrication.

Their mission is to develop fast, efficient, and robust machines that meet the demands of today’s 24/7 production environments, with a focus on ergonomics, safety, and environmentally-friendly operations.

AMT Machine Tools Ltd. is the Canadian distributor of Star CNC, offering full access to their advanced lathes and comprehensive support. Explore our Star Swiss-style lathe page or contact us for more information.

Frequently Asked Questions about the SB-12R Type G CNC Swiss-type Automatic Lathe

FAQ

The SB-12R Type G CNC Swiss-type Automatic Lathe is a sophisticated machining tool known for its precision and versatility. Addressing common inquiries about its features, capabilities, and applications is essential for users and potential buyers alike. This FAQ section covers important aspects such as industry suitability, technical specifications, safety features, and maintenance requirements. By providing clear and concise answers, we aim to enhance your understanding of the SB-12R Type G and help you make informed decisions regarding its use and functionality. If you can’t find the answer to your question here, please don’t hesitate to contact us for further assistance! 

What industries is the SB-12R Type G CNC Swiss-type Automatic Lathe suitable for?

The SB-12R Type G is particularly well-suited for industries that require high precision and intricate part production, including automotive, aerospace, medical, and electronics. Its ability to handle small diameter components makes it a popular choice across these sectors.

The lathe can accommodate a maximum machining diameter of ø13mm (33/64 in), making it ideal for manufacturing small, precise components.

Yes, the SB-12R Type G features the ability to switch between Guide Bush and Non-Guide Bush modes. This flexibility improves machining efficiency and allows for optimal processing of both long and short workpieces. Contact our specialist for more technical details.

The main spindle can operate at a maximum speed of 15,000 RPM, while the sub spindle can reach up to 12,000 RPM. This high-speed capability enhances the lathe’s efficiency in machining operations. Did you download CNC Swiss type automatic lathe brochure

The machine features a total of 17 tool positions on the main spindle, which includes six turning tools and two fixed high-speed ER11 spindles for cross working, along with three modular cross power-driven stations.