SR-20R IV Type A & B CNC Swiss-type Automatic Lathe
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The SR-20R IV Type A & B CNC Swiss Lathe is designed for high-precision, high-speed machining, perfect for producing intricate small parts. With its advanced Swiss-type CNC technology, this lathe excels in versatile operations such as turning, milling, and drilling, providing superior performance for complex production needs.
- Spindle speeds up to 10,000 RPM
- Capable of handling up to 41 tool positions for maximum flexibility
- Multi-axis control with simultaneous machining on the main and sub-spindle
Lathe
SR-20R IV Type A & B CNC Swiss-type Automatic Lathe Specifications and Accessories Overview
The SR-20R IV Type A/B boasts advanced machining capabilities with a maximum machining diameter of 20mm and a headstock stroke of 205mm, providing a high level of versatility for various small part applications. The machine’s 27-position tool station and backworking 8-spindle unit offer extensive tooling options, enhancing its ability to handle complex machining processes in a single setup.
Equipped with B-axis control and C-axis control for both the main and sub spindles, the SR-20R IV ensures precise secondary operations, reducing the need for multiple setups and increasing productivity. With spindle speeds of up to 10,000 RPM for both the main and sub spindles and a rigid construction for stability, this machine delivers exceptional accuracy and extended tool life. The Star Motion Control System optimizes performance, enabling the SR-20R IV to meet the most demanding production requirements.
Read the full technical specifications below. To learn more or get your custom quote today, contact us and discover how the SR-20R IV Type A/B can elevate your operations.
Max. Machining Diameter
ø20mm (25/32in)
Max. Headstock Stroke
STANDARD
205mm (8in)
WITH R.M.G.B. UNIT
160mm (6-19/64in)
NON-GUIDE BUSH TYPE
Bar diameter x 2.5 (max. 50mm) (max. 1-31/32in)Tool
5 tools on the front + 2 tools on the rear (12mm)
4-Spindle Sleeve Holder
NUMBER OF TOOLS
Front 4 tools / Rear 4 tools
MAX. DRILLING CAPABILITY
ø12mm (1/2in)
MAX. TAPPING CAPABILITY
M10 x P1.52-Spindle Front Sleeve Holder
NUMBER OF TOOLS (SLEEVE)
2 tools
MAX. DRILLING CAPABILITY
ø10mm (25/64in)
MAX. DEPTH OF HOLE
100mm (3-15/16 in)Power Driven Attachment
NUMBER OF TOOLS
Cross Milling: 3 tools
Cartridge Type: At 2 position
NUMBER OF TOOLS (TYPE A)
Angle adjustable power-driven tool: At 1 position (front 3 tools + rear 3 tools)
NUMBER OF TOOLS (TYPE B)
B-axis controlled power-driven tool unit: At 1 position (front 3 tools + rear 3 tools)
MAX. DRILLING CAPABILITY
ø10mm (25/64in)
MAX. TAPPING CAPABILITY
M8 x P1.25
SPINDLE SPEED
Max. 8,000min-1
DRIVE MOTOR
2.2kwRapid Feed Rate
35m/min-1 (X1, X2, Y1, Z1, Z2), 15m/min-1 (Y2)
Main Spindle Indexing Angle
C-axis control
Main Spindle Speed
Max. 10,000min-1
Main Spindle Motor
2.2kw (continuous) / 3.7kw (10 min/25% ED)
Coolant Tank Capability
170ℓ
Dimensions (W x D x H)
2,334 x 1,200 x 1,700mm
Weight
2,600kg
Power Consumption
4.7KVA
Max. Chucking Diameter
ø20mm (25/32in)
Max. Length for Front Ejection
80mm (3-5/32in)
Max. Parts Projection Length
30mm (1-3/16in)
Back 8-Spindle Unit
NUMBER OF TOOLS
Stationary Tool: 8 tools
Power Driven Tool: 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 P0.8Power Driven Attachment Spindle Speed
Max. 8,000min-1
Power Driven Attachment Drive Motor
1.0kw (continuous)/1.2kw (5min./30%ED)
Sub Spindle Indexing Angle
C-axis control
Sub Spindle Speed
Max. 10,000min-1
Sub Spindle Motor
Built-in motor drive 2.2kw (continuous) / 3.7kw (10min/25% ED)
- CNC unit Fanuc 31i-B (Type A)
- CNC unit Fanuc 31i-B5 (Type B)
- Pneumatic unit
- Automatic centralized lubrication unit
- Coolant level detector
- Door interlock system
- Broken cutoff tool detector
- Parts ejection detector
- Drive unit for revolving guide bush
- Revolving guide bush unit
- Main/Sub collet
- C-axis control (main/sub)
- Spindle clamp unit (main/sub)
- 5-station tool holder (12mm)
- 2-station tool holder (12mm)
- Main tool post tool rotation drive unit
- Cross milling tool unit (3-tool type)
- Angle adjustable power-driven tool unit (Type A)
- B-axis controlled power-driven tool unit (Type B)
- 4-spindle sleeve holder
- Back 8-spindle unit
- Drive unit for power-driven attachment B
- Y-axis control for back-working tool post
- Parts ejector (Spring type)
- Parts conveyor
- Air purge for revolving guide bush
- Sub spindle air purge unit
- Sub spindle air blow unit
- Work light
- Leakage breaker
- Coolant flow detector
- Water removal unit
- Beacon
- Parts receptacle in the machine
- Parts separator unit A
- Main spindle inner tube
- Parts ejector (air cylinder type)
- Rotary magic guide bush unit
- Parts ejector with guide tube
- Parts stopper unit
- Coolant unit 2.5MPa
- Coolant unit 6.9MPa
- Coolant pipings
- Oil-hole drill type
- Automatic bar feeder interface
- Compliant with the RS-232C interface
- Transformer
- Safety relay module version
- Transformer CE marking version
- Transformer CE marking specifications
SR-20R IV
Discover the power of the SR-20R IV Type A & B 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 SR-20R IV Type A & B !
How Can the SR-20R IV Type A & B CNC Swiss Lathe Improve Your Machining Process?
Process
The SR-20R IV Type A & B CNC Swiss Lathe is a game-changer for any machining operation, offering unmatched precision, versatility, and efficiency. With a maximum machining diameter of ø20mm and a 205mm headstock stroke, it easily adapts to a variety of machining tasks, making it ideal for industries requiring high accuracy and tight tolerances. The 27-position tool station, accommodating up to 41 tools, paired with a full B-axis for cross drilling and milling and a Y-axis controlled backworking unit, enables the machine to perform complex multi-process operations in a single setup, reducing cycle times and improving productivity.
Its rigid construction ensures stability for maintaining close tolerances, while the built-in motor and sensor improve indexing accuracy. This results in extended tool life and reduced downtime, which is crucial for maintaining operational efficiency. Additionally, the Star Motion Control System enhances operability, allowing for higher precision and smoother transitions between tasks, making it an invaluable asset for industries like medical devices, aerospace, and automotive.
By integrating multiple processes into one machine with advanced control systems and robust tooling capacity, the SR-20R IV helps streamline production, reduce setup times, and deliver consistent high-quality output. For a more detailed discussion on how this lathe can optimize your specific machining needs, contact our specialists for a personalized consultation.
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 SR-20R IV Type A & B CNC Swiss-type Automatic Lathe
FAQ
The SR-20R IV Type A & B CNC Swiss-type Automatic Lathe is a high-performance machine designed for the precision machining of small-to-medium-sized parts. It features multi-axis control and simultaneous machining capabilities on both the main and sub-spindles, making it ideal for complex parts. With a bar capacity of up to 20mm (expandable to 25mm) and spindle speeds up to 10,000 RPM, this lathe ensures exceptional accuracy and efficiency. It is well-suited for industries such as automotive, medical, aerospace, and electronics, where high-precision components are required. This FAQ section aims to address common questions about the SR-20R IV’s features, capabilities, and applications. If you have further questions, please feel free to contact us for personalized assistance!
Which industries benefit the most from using the SR-20R IV Type A & B lathe?
The SR-20R IV is widely used across various high-precision industries such as medical, aerospace, automotive, and electronics. It is particularly well-suited for applications requiring the production of small, intricate parts, such as medical implants, surgical instruments, connectors, and precision automotive components. The machine’s ability to perform complex operations in a single setup makes it a valuable asset for manufacturers looking to produce high-precision parts with tight tolerances.
What types of materials can be machined on the SR-20R IV Type A & B?
The SR-20R IV is designed to handle a wide range of materials, including stainless steel, aluminum, brass, copper, titanium, and plastics. This versatility makes it ideal for industries that require parts made from materials with different properties, from lightweight and corrosion-resistant metals like aluminum to tough, high-strength materials like titanium. It can also machine softer materials such as plastics, making it a flexible option for various production needs.
What part sizes is the SR-20R IV best suited for?
The SR-20R IV is optimized for machining small-to-medium-sized components, with a bar capacity of 20mm in diameter (expandable to 25mm with an optional kit). This makes it ideal for producing parts such as precision connectors, screws, fittings, and miniature gears. Its multi-axis control and ability to handle complex geometries ensure that parts are machined with high accuracy and surface finish, even for intricate designs.
How does the SR-20R IV improve production efficiency?
The SR-20R IV significantly enhances production efficiency by offering simultaneous machining capabilities on both the main and sub-spindles, allowing for multi-tasking in a single cycle. This reduces the overall cycle time and eliminates the need for secondary operations. Its B-axis control and flexible tool setup provide greater versatility, enabling complex parts to be produced faster while maintaining high precision. This setup makes the machine ideal for high-volume production with consistent quality.
Can the SR-20R IV handle high-volume production runs?
Yes, the SR-20R IV is built for continuous, high-volume production. Its 12-position tool station (expandable to 31) ensures that multiple operations can be performed in a single setup, making it an efficient choice for manufacturers looking to produce large quantities of parts without frequent tool changes. The machine’s automatic bar feeder also supports high-speed, uninterrupted production, and its robust design ensures repeatability and accuracy, even during extended runs, which is essential for industries requiring mass production with consistent precision.
