SR-20JII Type A/B CNC Swiss-type Automatic Lathe
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The SR-20JII Type A/B CNC swiss lathe combines advanced Swiss-type CNC technology with high-speed, precision machining, making it ideal for a wide range of small, intricate parts.With its versatile design, this lathe allows for seamless turning, milling, and drilling operations, maximizing productivity.
- Spindle speeds up to 10,000 RPM
- Accommodates up to 30 tool stations for complex part production
- Multi-axis control for simultaneous machining with main and sub-spindle
Lathe
SR-20JII Type A/B CNC Swiss-type Automatic Lathe Specifications and Accessories Overview
The SR-20JII Type A/B is designed for precision and versatility, offering a maximum machining diameter of 20mm, with the option to extend it to 23mm. The machine features a 205mm headstock stroke, and both C-axis control and 10,000 RPM spindle speeds for precise secondary machining. Its 5-spindle sleeve holder and 8-station backworking unit with Y-axis control (Type B) provide robust tooling capacity, enabling the machine to handle complex part production with ease.
With a slanted dovetail construction on the tool post, the SR-20JII ensures high rigidity, making it ideal for machining tough materials. The 8,000 RPM power-driven tools in the cross milling unit and flexible spindle configurations allow the machine to handle multi-process tasks efficiently, reducing cycle times and boosting productivity. Whether you require high-volume production or intricate part fabrication, the SR-20JII Type A/B delivers exceptional performance and adaptability.
Read the full technical specifications below. To learn more or get your custom quote today, contact us and discover how the SR-20JII Type A/B can elevate your operations.
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)
N.G.B. Type
Bar diameter x 2.5 (Max. 50mm) (Max. 1-31/32in)Tool
NUMBER OF TOOLS
6 tools
TOOL SHANK
12mm5-Spindle Sleeve Holder
NUMBER OF TOOLS
Front 5 tools
Rear 5 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 (3-15/16in)Power-Driven Attachment
NUMBER OF TOOLS
Cross Milling 3 tools (ER16 + Cartridge Type 2 Pos.
Cross milling 3 tools (ER20 x 1, ER16 x 2) + Cartridge Type 2 Pos.
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 (X1, X2, Z1, Z2), 24m/min(Y2) : type B only
Main Spindle Indexing Angle
C-axis control
Main Spindle Speed
Max. 10,000min-1
Main Spindle Motor
2.2kW (continuous) / 3.7kW (10min./25%ED)
Coolant Tank Capacity
202ℓ
Dimensions (W x D x H)
2,250 X 1,200 X 1,700mm
Weight
2,750kg
Power Consumption
4.8kVA
Maximum Chucking Diameter
ø20mm (25/32in) OP: ø23mm (29/32in)
Max. Length for Front Ejection
100mm (3-15/16in)
Max. Part Projection Length
30mm (1-3in/16 in)
Unit Especially for Backworking
NUMBER OF TOOLS
8 Tools (Type B) & 4 Tools (Type A)
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
Sub-Spindle Min. Indexing Angle
C-axis control
Sub-Spindle Speed
Max. 10,000min-1
Sub-Spindle Motor
2.2kW (continuous) / 3.7kW (10min/25%ED)
- CNC Unit FANUC 32i-B
- Operation panel 10.4 inch color LCD display
- Pneumatic unit
- Coolant level detector
- Automatic centralized lubrication unit
- Door interlock system
- Cs contouring control (Main/Sub)
- Spindle clamp unit (Main/Sub)
- Revolving guide bush unit
- Drive unit for revolving guide bush
- Air purge for revolving guide bush
- Main/Sub Collet
- 6-Station tool holder (12mm)
- Cross drilling unit (gang type tool post)
- 5-Spindle sleeve holder
- Broken cutoff tool detector
- Backworking attachment
- 4-spindle backworking unit (Type A)
- 8-Spindle backworking unit with Y axis control function (Type B)
- Parts conveyor
- Sub spindle air purge unit
- Sub spindle air blow unit
- Drive unit for power-driven attachment (8-spindle backworking unit) (Type B)
- Work light
- Leakage breaker
- Coolant flow detector
- Water removal unit
- Oil mist filter
- Beacon
- Main spindle inner tube
- Feed arrow steady rest
- Rotary magic guide bush unit
- Non-guide bush type
- Drive unit for power-driven attachment B (4-spindle backworking unit- Type A)
- Parts ejector (Spring type)
- Parts ejector (Air cylinder type)
- Parts ejector with guide tube
- Parts stopper unit
- Coolant unit (6.9MPa/2.5MPa/0.7MPa)
- Coolant unit signal cable
- Coolant unit power cable
- Coolant valve
- Coolant pipings
- Automatic bar feeder interface
- LAN/RS232C interface
- Transformer
SR-20JII
Discover the power of the SR-20JII 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-20JII Type A/B !
How Can the SR-20JII Type A/B Improve Your Machining Process?
Process
The SR-20JII Type A/B CNC Swiss-Type Automatic Lathe offers several significant enhancements that can transform your machining process. One of its standout features is its increased flexibility, allowing for a broad range of machining operations and configurations. This flexibility is supported by the switchable Guide Bush/Non-Guide Bush system, offering adaptability for different material types and production requirements, while reducing material waste.
The lathe’s high rigidity and accuracy come from its slanted dovetail slideway structure, ensuring stable and precise tool positioning, even during high-speed operations. With main and sub spindles both reaching speeds of up to 10,000 RPM, the machine is optimized for efficient and accurate machining of small, intricate parts across various industries.
A notable advantage is the large tooling capacity, featuring up to 8 tools for backworking (Type B) and 4 tools for Type A, enabling complex operations to be completed in a single setup. The inclusion of power-driven attachments, such as cross-milling tools and deep-hole drilling stations, significantly expands its capabilities, making it ideal for high-precision tasks.
The FANUC 32i-B control system with C-axis control on both spindles ensures advanced operational precision and flexibility, while the rapid feed rates and high-speed spindle motors reduce cycle times, boosting overall productivity.
Additional standard features like the automatic centralized lubrication unit, coolant level detector, and broken cut-off tool detector further enhance the lathe’s reliability and ease of use. Combined with its ability to run autonomously for extended periods with minimal operator intervention, the SR-20JII becomes a cost-effective solution for improving machining accuracy and efficiency. To see how the SR-20JII can enhance your production process, contact us for a custom quote today and let our specialists help you find the perfect solution for your specific needs.
5-Spindle Cross Drilling Unit Tooling Variations for Enhanced Machining
Spindle
The 5-spindle cross drilling unit offers versatile tooling configurations to enhance multi-tasking capabilities in complex machining operations. Each diagram showcases different tooling variations, such as the milling unit for ER16 x 2, illustrating the strategic placement and alignment of tools for maximum efficiency. These configurations enable seamless integration of drilling, milling, and tapping operations, reducing cycle times and increasing productivity across diverse applications. With the flexibility provided by these setups, manufacturers can tackle intricate part geometries with ease and precision.
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-20JII Type A/B CNC Swiss-type Automatic Lathe
FAQ
The SR-20JII Type A/B CNC Swiss-Type Automatic Lathe is engineered to deliver exceptional precision and versatility for a wide range of machining tasks. With its flexible tooling options and innovative design, this machine is ideal for high-precision industries like medical devices, automotive, and electronics. To help you better understand the unique capabilities and features of the SR-20JII, we’ve compiled a list of frequently asked questions below. 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 SR-20JII Type A and Type B?
The main differences between the SR-20JII Type A and Type B models lie in their tooling configurations and capabilities. Type B features an 8-station back-working unit with Y-axis control, which provides additional flexibility for complex machining tasks. In contrast, Type A has a 4-spindle back-working unit without Y-axis control. This means that Type B can perform more complex and precise operations, especially for back-working, compared to Type A.
How does the SR-20JII compare to the SD-26 in terms of capabilities?
The SR-20JII and the SD-26 are both CNC Swiss-type automatic lathes, but they may differ in terms of their maximum machining diameters, tooling configurations, spindle speeds, and other specific features. Typically, the SR-20JII is designed for high precision and flexibility with its advanced tooling options and control systems, while the SD-26 may cater to different machining requirements. For a direct comparison, one would need to review the specific model specifications of the SD-26, as these details are not provided in the current context.
What industries benefit most from the SR-20JII's features?
Can the SR-20JII handle large-scale production efficiently?
Yes, the SR-20JII is designed to handle large-scale production efficiently. Its robust construction, high-speed capabilities, and advanced control systems enable it to maintain precision over long production runs. The machine’s automation features, such as the automatic centralized lubrication unit and parts conveyor, also contribute to its ability to run continuous production cycles with minimal downtime. Did you download CNC Swiss type automatic lathe brochure?
What are the key improvements in the SR-20JII over the SR-20J model?
The SR-20JII features several key improvements over the SR-20J model, including increased flexibility with more tooling configurations, enhanced rigidity for improved accuracy, and the addition of a Y-axis control in the 8-station back-working unit for Type B. These enhancements allow for more complex and precise machining operations. The SR-20JII also likely incorporates the latest advancements in CNC technology, offering improved speed, efficiency, and user-friendly controls.
