Star CNC Machine Tool
ST-38
by Star CNC Machine Tool
The ST-38 CNC Swiss Lathe is a powerful, high-precision machine designed for large and complex part production.
ø38mm (1-1/2 in)
Max. Machining Diameter
350 mm (13-25/32 in)
Max. Headstock Stroke
max. 7,000 min⁻¹
Main Spindle Speed


ST-38 Features
Standard features that set this machine apart in demanding manufacturing environments.
Precision & Performance
- Spindle speeds up to 7,000 RPM
- Sub-spindle for enhanced simultaneous machining
- Power Driven Att.
- Rapid Feed Rage
- Main Spindle Indexing Angle
- Main Spindle Speed
- Main Spindle Motor
Machining Capability
- Front Turret Tool Post
- Number of Turning Tools
- Sleeve Holder
Built-In Extras
- Capable of holding up to 41 tool positions for versatile machining
- Max. Machining Diameter
- Max. Headstock Stroke
- Tool Shank
- Coolant tank capability
Star CNC ST-38 Technical Details
Complete specifications, standard features, and optional upgrades.
- Max. Machining Diameter
- ø38mm (1-1/2 in)
- Max. Headstock Stroke
- 350 mm (13-25/32 in)
- Main Spindle Speed
- max. 7,000 min⁻¹
- Main Spindle Motor
- 7.5 kW (continuous) / 11 kW (10min/25%ED)
- Main Spindle Indexing
- C-axis control
- Rapid Feed Rate (X, Z)
- 30 m/min
- Rapid Feed Rate (Y)
- 15 m/min
| Max. Machining Diameter | ø38mm (1-1/2 in) |
| Max. Headstock Stroke | 350 mm (13-25/32 in) |
| Main Spindle Speed | max. 7,000 min⁻¹ |
| Main Spindle Motor | 7.5 kW (continuous) / 11 kW (10min/25%ED) |
| Main Spindle Indexing | C-axis control |
| Rapid Feed Rate (X, Z) | 30 m/min |
| Rapid Feed Rate (Y) | 15 m/min |
ST-38 Questions
Answers to common questions about the ST-38.
The ST-38 CNC Swiss-type Automatic Lathe is primarily used for the production of complex, precision parts that require multiple operations such as turning, milling, drilling, tapping, and deep hole drilling. Its main applications include manufacturing parts for medical devices, automotive components, aerospace parts, and intricate components for the electronics industry. The machine's ability to handle large diameter workpieces with high precision makes it particularly suitable for jobs that require a high degree of accuracy and fine detail.
The triple turret design allows the ST-38 to perform simultaneous machining on different areas of a component, drastically reducing cycle times. Each turret comes with 10 stations, enabling multi-tool configurations that support complex operations. This allows for independent front and rear machining, which increases productivity by minimizing non-cutting time, ultimately improving the overall efficiency of multi-process part production.
The ST-38 CNC lathe is used across various industries that demand high precision and efficiency in their machining processes. Key industries include: Medical: For manufacturing surgical instruments, implants, and other medical devices. Automotive: For producing complex engine components, transmission parts, and other precision automotive parts. Aviation: For creating critical aerospace components that require tight tolerances and high-quality surface finishes. Electronics: For fabricating connectors, housings, and other intricate electronic components. The lathe’s ability to handle large-diameter workpieces with high accuracy makes it ideal for these industries where quality and efficiency are paramount. Contact our specialist for more technical details.
The Fanuc Series 31i-B5 CNC unit is known for its high performance and advanced features, which include: High-speed processing capability for complex, multi-axis machining. A user-friendly interface with a 10.4-inch color LCD display for easy operation and programming. Enhanced data input and output options, supporting various data storage and transfer methods. Reliable and precise control for achieving superior surface quality and detailed machining. Energy-saving features and preventive maintenance functions for sustainable and efficient operation. Did you download CNC Swiss type automatic lathe brochure?
The ST-38 stands out from other Swiss-type automatic lathes due to its large machining diameter capacity (up to ø38mm), its triple turret design for simultaneous machining, and its advanced control system (Fanuc Series 31i-B5). These features make it highly efficient for complex and large-diameter parts. Additionally, the ST-38's robust construction and comprehensive range of standard and optional accessories provide a high degree of versatility and adaptability to various machining requirements. Compared to other Swiss-type lathes, the ST-38 is particularly well-suited for high-volume production where precision and operational efficiency are critical.
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