Star SR-10R

$150,000 - $230,000 Updated 2026-03-16

Key Specifications

Max Spindle

10,000min-1

Tool Capacity

27-position tool station accommodates up to 41 tools

Rapid Traverse

30 m/min

Spindle Power

2.2kw (continuous) / 3.7kw (10 min/25% ED)

Max Turn Length

205mm (8in)

max bar capacity

10 mm (0.394 in)

Overview

The Star SR-10R is Star Micronics' compact Swiss-type CNC automatic lathe for the demanding 10mm-and-under diameter market segment, delivering the SR series' multi-axis capability and back spindle functionality in a machine footprint scaled to the smallest precision components. The '10' designation indicates a 10mm maximum bar capacity, and the 'R' suffix confirms a back spindle for complete part machining in a single cycle.

At 10mm capacity, the SR-10R addresses the high-volume production of miniature precision components: watch parts, micro-connectors, miniature fasteners, dental instruments, hearing aid components, and the smallest implantable medical devices. These applications demand extremely high RPM for adequate surface speed at small diameters, exceptional tool rigidity, and the ability to run lights-out for extended periods on unmanned production shifts.

The SR-10R achieves main spindle speeds appropriate for micro-machining, with the SR series' proven multi-axis architecture scaled to the 10mm class. The back spindle enables complete part machining with facing, turning, drilling, and threading operations on the part's second end without secondary setups. Star's guide bushing system maintains precision at the short distances from bushing to tool that miniature Swiss-type work requires.

Star's Motion Control System (MCS) benefits are particularly valuable at 10mm, where cycle times are extremely short and the marginal improvement from optimized axis coordination translates directly to meaningful gains in annual parts production. The machine's compact footprint allows multiple units to be deployed in the same floor space as a single larger Swiss lathe, enabling flexible capacity scaling for miniature component production programs.

Full Specifications

Parameter	Value
Max Bar Capacity	10 mm (0.394 in)
Max Machining Diameter	10 mm (0.394 in)
Max Machining Length	100 mm (3.94 in)
Main Spindle Speed	12,000 RPM
Back Spindle Speed	10,000 RPM
Live Tool Speed	10,000 RPM
Number Of Axes	Up to 7 (X1, Z1, X2, Z2, Y1, C1, C2)
Tool Positions	22 (including live tools)
Y Axis Stroke	±8 mm
Guide Bushing	Yes
CNC Control	Fanuc 31i-B5
Rapid Traverse Rate	30 m/min
Machine Weight	2,600kg
Power Consumption	8 kVA
Key People	Frank Schlesinger
Related Topics	brightness
Max Turning Diameter	ø20mm (25/32in)
Max Turning Length	205mm (8in)
Bar Capacity	ø50mm (max. 1-31/32in)
Max Spindle Speed	10,000min-1
Spindle Motor Power	2.2kw (continuous) / 3.7kw (10 min/25% ED)
Tool Capacity	27-position tool station accommodates up to 41 tools
Coolant Capacity	170ℓ
Floor Space	2,334 x 1,200 x 1,700mm
Electrical	4.7KVA
Cnc Control	Fanuc 31i-B (Type A) / Fanuc 31i-B5 (Type B)

Specifications sourced from starcnc.com — verified 2026-03-28

Strengths & Limitations

Strengths

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Limitations

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Best For

Watch and precision instrument manufacturers producing arbors, jewel screws, pinions, and miniature gears Medical device manufacturers making micro-screws, dental components, cochlear implant parts, and miniature surgical instruments Electronics and connector manufacturers producing micro-pins, contact elements, and precision housings under 10mm Hearing aid component producers requiring high-volume precision miniature parts in brass, stainless, and titanium Defense and aerospace suppliers machining precision micro-components for guidance systems and instrumentation Contract manufacturers specializing in micro-precision Swiss-type work for diverse high-value industries

Frequently Asked Questions

01 What is the Star SR-10R price?

A new Star SR-10R ranges from approximately $150,000 for a basic configuration to $230,000 fully equipped with Y-axis and maximum tooling. Used SR-10R machines typically sell for $55,000–$110,000 depending on age, condition, and configuration.

02 What industries use the SR-10R?

Watchmaking, miniature medical devices (dental, cochlear, micro-orthopedic), precision electronics connectors, micro-fasteners, and hearing aid components are the primary markets. Any application requiring Swiss-type precision on parts under 10mm diameter in high volumes is a candidate.

03 How does the SR-10R compare to competing 10mm Swiss lathes?

The SR-10R competes with Citizen's M10 series and Tornos' Sigma 10 in the 10mm class. Star's advantages include the MCS cycle time optimization system and hydraulic-free design. Competitors offer their own differentiators including LFV chip-breaking (Citizen) and Tornos' modular tooling system.

04 What bar loading equipment is needed for the SR-10R?

The SR-10R requires a bar loader capable of handling 10mm diameter stock—typically LNS, Iemca, or FMB hydrodynamic bar loaders in the appropriate capacity range. Short loaders for 1-3 meter bar lengths are common in micro-Swiss applications. Star can recommend compatible bar loader configurations for specific applications.

05 Can the SR-10R machine titanium at 10mm diameter?

Yes, titanium (Ti-6Al-4V and Ti-CP) is regularly machined on the SR-10R in medical and aerospace applications. The high spindle speed enables adequate surface speed, and titanium's toughness at small diameters is manageable with sharp carbide tooling and appropriate chip-breaking strategies.