Star CNC Machine Tool
SW-12RII
by Star CNC Machine Tool
The SW-12RII is a high-precision Swiss-type CNC lathe engineered for small part production, delivering superior accuracy and efficiency.
ø13mm (33/64 in)
Max. Machining Diameter
135 mm (5-5/16 in)
Max. Headstock Stroke
max. 15,000 min⁻¹
Main Spindle Speed


SW-12RII Features
Standard features that set this machine apart in demanding manufacturing environments.
Precision & Performance
- Tool Post Configuration
- 4-Spindle Sleeve Holder
- Power Driven Att.
- Rapid Feed Rate
- Main Spindle Indexing Angle
- Main Spindle Speed
- Main Spindle Motor
Built-In Extras
- Max. Machining Diameter
- Max. Headstock Stroke
- Tools
- Dimensions (W x D x H)
- Center Height
- Weight
- Power Consumption
- Coolant Tank Capability
Star CNC SW-12RII Technical Details
Complete specifications, standard features, and optional upgrades.
- Max. Machining Diameter
- ø13mm (33/64 in)
- Max. Headstock Stroke
- 135 mm (5-5/16 in)
- Main Spindle Speed
- max. 15,000 min⁻¹
- Main Spindle Motor
- 2.2 kW (continuous) / 3.7 kW (10min/25%ED)
- Main Spindle Indexing
- C-axis control
- Number of Axes
- 8 programmable axes
- Rapid Feed Rate (X2, Y1, Y3, Z1, Z2)
- 35 m/min
- Rapid Feed Rate (X1, X3)
- 24 m/min
| Max. Machining Diameter | ø13mm (33/64 in) |
| Max. Headstock Stroke | 135 mm (5-5/16 in) |
| Main Spindle Speed | max. 15,000 min⁻¹ |
| Main Spindle Motor | 2.2 kW (continuous) / 3.7 kW (10min/25%ED) |
| Main Spindle Indexing | C-axis control |
| Number of Axes | 8 programmable axes |
| Rapid Feed Rate (X2, Y1, Y3, Z1, Z2) | 35 m/min |
| Rapid Feed Rate (X1, X3) | 24 m/min |
SW-12RII Questions
Answers to common questions about the SW-12RII.
The SW-12RII CNC Swiss-type Automatic Lathe is particularly beneficial for industries that require high-precision machining of small diameter workpieces, including automotive, medical device, manufacturing, aerospace, and electronics. In the automotive sector, it excels in producing precision components like micro-axles and parts for injection systems. The medical industry benefits from its ability to create intricate devices and components, while aerospace applications demand the high accuracy this machine provides for small parts. Additionally, the electronics sector relies on the SW-12RII for manufacturing detailed electronic components. Its advantages include superior accuracy for complex parts, versatility in switching between guide bush and non-guide bush modes, and efficient simultaneous machining capabilities that reduce cycle times. With a compact size (1995 x 920 x 1700mm) suitable for limited spaces and high-speed machining capabilities of up to 15,000 rpm, the SW-12RII is invaluable across these industries where precision, efficiency, and adaptability are paramount.
The SW-12RII CNC Swiss-type Automatic Lathe offers several key features that make it a versatile and efficient machine for precision machining: Versatile Tooling: The lathe is designed with a variety of tooling options to enable a broad range of complex machining operations Simultaneous Machining: It features independently controlled opposing gang-type tool posts that allow for simultaneous machining on the main spindle, reducing cycle times Back Working Capability: An 8-station back working platen with Y-axis control enables complex operations to be carried out independently Convertible Design: The SW-12RII can switch between guide bush (Swiss-type) and non-guide bush modes, making it suitable for both short and long workpieces High-Speed Machining: Both the main and sub-spindles can operate at speeds up to 15,000 rpm Multiple Axes: The machine features 10 axes in total, providing enhanced flexibility and precision in machining operations Compact Size: With dimensions of 1995 x 920 x 1700mm, it has a relatively small footprint, making it suitable for facilities with limited space Advanced Control System: It uses a FANUC 31i-B5 control system with an electronic handwheel for precise control C-Axis Control: Standard C-axis control on both main and sub-spindles allows for complex contouring operations These features make the SW-12RII particularly well-suited for industries requiring high-precision, small-diameter parts with complex geometries.
The SW-12RII CNC Swiss-type Automatic Lathe significantly improves productivity in aerospace manufacturing through a combination of advanced features. Its independently controlled, opposing gang-type tool posts enable simultaneous machining operations, while high-speed spindles (up to 15,000 rpm) facilitate efficient production of small, precision parts. The machine's versatile tooling system, with 29 tool positions, accommodates complex machining demands typical in aerospace applications. With 10 axes in total, including an 8-station back working platen with Y-axis control, the SW-12RII offers enhanced flexibility and precision for intricate components. The ability to switch between guide bush and non-guide bush modes optimizes the machine for both long and short workpieces, increasing its versatility. These features, coupled with the lathe's overall design for improved functionality, precision, and accuracy, allow aerospace manufacturers to reduce cycle times, increase machining flexibility, and maintain the high precision required for aerospace components, ultimately boosting overall productivity in this demanding industry.
The SW-12RII CNC Swiss-type Automatic Lathe offers advanced simultaneous machining capabilities on the main spindle through several key features: Opposing Tool Posts: The machine is equipped with independently controlled, opposing gang-type tool posts that work in unison to carry out simultaneous machining operations Multiple Axes: The SW-12RII features 10 axes in total, providing enhanced flexibility for complex machining tasks Main Spindle Configuration: The main spindle side includes X1, Y1, X3, and Y3 axes, allowing for multi-axis simultaneous machining Tooling Options: On the main spindle, there are 7 turning tools (10mm square), 4 drilling arm sleeve holders (ER16), and 6 power-driven tool positions High-Speed Machining: The main spindle can operate at speeds up to 15,000 rpm, enabling efficient simultaneous machining operations Power and Control: The main spindle is powered by a 3.7 kW motor and features C-axis control for precise positioning during simultaneous machining tasks These features allow the SW-12RII to perform various operations like turning, cross drilling, and other complex machining tasks simultaneously on the main spindle, significantly reducing cycle times and increasing overall productivity
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