SV-20R
CNC Swiss-type Automatic Lathe

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The SV-20R CNC Swiss Lathe is a high-precision Swiss-type machine built for complex and small part production. Its versatile design allows for simultaneous machining operations, providing superior flexibility for turning, milling, and drilling tasks with maximum accuracy and efficiency.

  • Spindle speeds up to 10,000 RPM
  • Accommodates up to 30 tool positions for versatile production
  • Sub-spindle for simultaneous front and back machining
10,000 RPM | 20 mm Bar Capacity | 7 Axis | 30 Tool Stations

Lathe

SV-20R CNC Swiss-type Automatic Lathe Specifications and Accessories Overview

The SV-20R offers exceptional flexibility and efficiency in machining operations. It can handle a maximum machining diameter of 20mm (optional upgrade to 23mm) and has a 205mm headstock stroke. With its gang-type and turret-type tool post configurations, the machine supports up to 6 tools in the gang post and 8 stations in the turret, accommodating complex turning, milling, and drilling operations. The backworking 8-spindle unit with Y-axis control allows for simultaneous machining of multiple parts, improving productivity and precision.

Equipped with C-axis control on both the main and sub spindles, the SV-20R ensures accurate tool positioning and efficient secondary operations. The Star Motion Control system minimizes non-cutting time, further boosting efficiency. Additionally, the machine’s ability to switch between guide bush and non-guide bush modes makes it versatile for different machining needs, allowing for both long and short part production.

Read the detailed technical specifications below to learn more. Contact us today to get your custom quote and discover how the SV-20R CNC Swiss-type Automatic Lathe can elevate your operations and optimize your manufacturing process. Contact our experts for personalized assistance and insights tailored to your specific needs! 

  • Max. Machining Diameter

    ø20mm (25/32in) OP: ø23mm (29/32in)

  • Max. Headstock Stroke

    STANDARD
    205mm (8in)

    R.M.G.B Type
    160mm(6-19/64in) : OP

    N.G.B. Type
    Bar diameterx2.5 (Max. 50mm) (Max. 1-31/32in)

  • Tool Post Configuration

    GANG TYPE
    Turning tool + Power-driven tool

    TURRET TYPE
    8 stations

  • Tool

    NUMBER OF TOOLS
    Gang Type
    6 tools (16mm), 7 tools (12mm)

    Turret Type
    1 tool / station (16mm), Max. 3 tools / station (12mm)

  • Sleeve

    NUMBER OF TOOLS
    Max. 3 tools/station

    MAX. DRILLING CAPABILITY
    ø14mm (35/64in)

    MAX. TAPPING CAPABILITY
    M12 x P1.75

  • Power Driven Attachment

    NUMBER OF TOOLS
    Gang Type
    5 tools
    Turret Type
    Max. 2 tools / station (mountable at each 8 positions)

    MAX. DRILLING CAPABILITY
    Gang Type & Turret Type
    ø10mm(25/64in)

    MAX. TAPPING CAPABILITY
    Gang Type & Turret Type
    M8 x P1.25

    SPINDLE SPEED
    Gang Type
    Max. 8,000min-1
    Turret Type
    Max. 5,750min-1

    DRIVE MOTOR
    Gang Type
    2.2kW
    Turret Type
    2.7kW(continuous) / 4.0kW(5min. / 30%ED)

  • Rapid Feed Rate

    30m/min(X1, X2, X3, Y1, Z1, Z2, Z3)
    20m/min(Y2), 15m/min(Y3)

  • Main Spindle Indexing Angle

    C-axis control

  • Main Spindle Speed

    Max.10,000min-1

  • Main Spindle Motor

    3.7kW(continuous) / 5.5kW (10min. / 60%ED)

  • Coolant Tank Capacity

    220ℓ

  • Dimension (W x D x H)

    2,730 x 1,350 x 1,865mm

  • Center Height

    1,125mm

  • Weight

    4,150kg

  • Power Consumption

    6.3KVA

  • Max. Chucking Diameter

    ø20mm (25/32in) OP: ø23mm (29/32in)

  • Max. Length For Front Ejection

    105mm (4-9/64in)

  • Max. Part Projection Length

    75mm (2-16/64in)

  • Back 8-Spindle Unit

    NUMBER OF TOOLS
    Stationary tool
    8 tools
    Power driven tool
    Max. 8 tools

    MAX. DRILLING CAPABILITY
    Stationary tool
    ø12mm (1/2in)
    Power driven tool
    ø6mm (15/64in)

    MAX. TAPPING CAPABILITY
    Stationary tool
    M10 x P1.5
    Power driven tool
    M5 x P0.8

  • Power-Driven Att. Spindle Speed

    Max. 8,000min-1

  • Power-Driven Att. Drive Motor

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

  • Sub-Spindle Indexing Angle

    C-axis control

  • Sub-Spindle Speed

    Max. 10,000 min-1

  • Sub-Spindle Motor

    2.2kW (continuous) / 3.7kW (10min./40%ED)

  1. CNC unit FANUC 31i-B5
  2. Power electric & Operation panel & 10.4-inch color LCD
  3. Pneumatic unit
  4. Hydraulic unit
  5. Spindle cooling unit
  6. Automatic centralized lubrication system (with level detecting function)
  7. Cutting oil level (lower limit) detecting unit
  8. Door interlock system
  9. Broken cutoff tool detector
  10. C-axis control (Main/Sub)
  11. Spindle clamp unit (Main / Sub)
  12. Drive unit for revolving guide bush
  13. Revolving guide bush unit
  14. Main/Sub collet
  15. Air purge for revolving guide bush
  16. Sub spindle air purge unit
  17. Tool holder (Gang-type tool post)
  18. 5-spindle milling unit (Gang-type tool post)
  19. Drive system for power-driven attachment (Turret-type tool post)
  20. Back 8-Spindle unit
  21. Drive system for power-driven attachment B (Back 8-spindle unit)
  22. Parts conveyor
  23. Automatic bar feeder interface
  24. RS-232C interface
  25. Work light (for cutting chamber and headstock chamber)
  26. Leakage breaker
  1. Coolant flow detector
  2. Parts ejection detector
  3. Water removal unit
  4. Oil mist filter
  5. Beacon
  6. Non-guide bush type
  7. Rotary magic guide bush unit
  8. For pneumatic unit rotary magic guide bush
  9. Main spindle inner tube
  10. Parts ejector (Air cylinder type)
  11. Parts ejector (Spring type)
  12. Parts ejector with guide tube
  13. Parts stopper unit
  14. Coolant unit(6.9MPa / 2.5MPa / 0.7MPa)
  15. Coolant unit signal cable
  16. Coolant unit power cable
  17. Coolant valve
  18. Coolant pipings
  19. Manual pulse generator
  20. Transformer CE marking version
  21. CE marking version
  22. Tool Presetter

SV-20R

Discover the power of the SV-20R 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 SV-20R !

How Can the SV-20R CNC Swiss Lathe Improve Your Machining Process?

Process

The SV-20R CNC Swiss-type Automatic Lathe can significantly improve your manufacturing process by offering enhanced machining flexibility and efficiency. Its ability to combine sliding head lathe functionality with a turret machine’s versatility allows for simultaneous machining operations, reducing production time and increasing accuracy. The advanced tooling capabilities, including a 6-tool gang type post and an 8-station turret, enable it to handle complex and intricate part production with ease. Powered by a FANUC 31i-B5 CNC unit, it delivers full five-axis control, facilitating the machining of highly complex components with high-speed spindles reaching up to 10,000 RPM.

The Star Motion Control system reduces idle time and, together with rapid feed rates, ensures optimal efficiency. Additionally, the 8-spindle backworking unit with Y-axis control allows for simultaneous front and back machining, further cutting cycle times. Designed for complex part production with tight tolerances, the SV-20R is ideal for industries like medical, aerospace, and electronics.

By integrating the SV-20R into your operations, you’ll benefit from increased precision, faster turnaround, and greater flexibility, leading to higher productivity and product quality. Contact us today for a custom quote and see how this machine can transform your manufacturing process.

SV-20R CNC Swiss Lathe

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 SV-20R CNC Swiss-type Automatic Lathe

FAQ

The SV-20R CNC Swiss-type Automatic Lathe is a state-of-the-art machine designed for high precision and flexibility in producing intricate components, particularly in the medical and aerospace industries. With its multi-axis capabilities and advanced control features, the SV-20R enhances productivity while accommodating a wide range of complex machining operations. To help you better understand the capabilities and features of this machine, we provide you with a list of frequently asked questions. If you need more information or have specific inquiries, please feel free to contact us for personalized support. 

What are the main differences between the SV-20 and SV-20R models?

The SV-20R model offers enhanced capabilities compared to the SV-20, particularly with its Star Motion Control System, which reduces idle time and improves overall efficiency. The SV-20R also features an 8-spindle backworking unit with Y-axis control, providing greater flexibility for simultaneous machining operations. Additionally, the SV-20R includes guide bush and non-guide bush switching, offering more versatility for different types of part production, whereas the SV-20 does not have this feature.

The SV-20R is ideal for aerospace applications, thanks to its multi-axis control and advanced tooling options. The machine’s ability to perform simultaneous machining using the gang-type tool post and 8-spindle backworking unit significantly reduces cycle times for complex aerospace components. The FANUC 31i-B5 CNC control with five-axis capability ensures precision and accuracy, critical for producing intricate and high-tolerance parts required in aerospace manufacturing.

The gang tool configuration in the SV-20R provides faster tool changes and minimal tool setup time, which increases overall efficiency. It accommodates up to 6 tools (16mm) or 7 tools (12mm), enabling complex operations to be performed with high precision. The configuration is particularly beneficial for simultaneous machining, as multiple tools can work together, significantly reducing production time and boosting throughput. Contact our specialist for more technical details.

Yes, the SV-20R is an excellent choice for medical device manufacturing. Its ability to produce complex and intricate parts with tight tolerances makes it ideal for the precision required in medical devices. The machine’s multi-axis control, simultaneous machining capability, and high-speed spindles (up to 10,000 RPM) ensure that it can handle the small, detailed components often used in the medical field.

The 0.01° indexing angle in the SV-20R ensures extremely precise positioning of the tools during secondary operations. This level of accuracy is crucial for maintaining tight tolerances and ensuring consistent part quality, particularly for intricate or complex components. The fine indexing capability also improves repeatability and ensures high-precision machining across multiple parts.