Star SV-12

Est. $180,000 - $300,000 Specs verified 2026-10-03 · starcnc.com Updated 2026-10-03

Image: starcnc.com, Star Micronics

Key Specifications

Rapid Traverse

32 m/min

max bar capacity

12 mm (0.47 in)

max machining diameter

12 mm (0.47 in)

y axis stroke

±12 mm

How much does the Star SV-12 cost?

Estimated price range

Est.$180,000 - $300,000

Our best estimate for a swiss-type lathe in this class — not a quote from Star Micronics. Configuration moves it a long way.

Overview

The Star SV-12 is a Swiss-type lathe for small-diameter work: bar capacity and maximum machining diameter are both 12 mm (0.47 in). Star lists a Y-axis stroke of ±12 mm and a rapid traverse of 32 m/min.

The Y stroke in each direction equals the full bar diameter. Cross tools can therefore travel well beyond the edge of the stock on either side, and off-centre holes, flats and slots anywhere across the section are within reach. That is the main thing the short table tells a buyer: a small-bar machine with a Y axis sized generously for it.

The next size up in the family, the SV-20, is listed with a ø20mm (25/32in) maximum turning diameter. Star's table for the SV-12 gives no spindle speed, power, tool count or axis count, and those are needed before the machine can be judged against a part.

Full Specifications

Parameter	Value
Max Bar Capacity	12 mm (0.47 in)
Max Machining Diameter	12 mm (0.47 in)
Y Axis Stroke	±12 mm
Rapid Traverse Rate	32 m/min

Specifications sourced from starcnc.com — verified 2026-10-03

Strengths & Limitations

Strengths

Y-axis stroke of ±12 mm, equal to the full bar diameter in each direction
Rapid traverse of 32 m/min for short idle moves between cuts

Limitations

Bar capacity stops at 12 mm (0.47 in); the SV-20 is listed at ø20mm (25/32in)
The published table gives no spindle speed, spindle power, tool count or axis count

Best For

Small turned parts from bar up to 12 mm (0.47 in) Off-centre drilling and milling within ±12 mm of Y stroke Pins, shafts and small fittings under 12 mm (0.47 in) diameter

Frequently Asked Questions

01 What is the bar capacity of the SV-12?

12 mm (0.47 in). Maximum machining diameter is the same figure. For larger stock the SV-20 is listed with a ø20mm (25/32in) maximum turning diameter.

02 Does the SV-12 have a Y axis?

Yes. Star lists a Y-axis stroke of ±12 mm. On a 12 mm (0.47 in) bar that covers the whole cross-section with travel to spare, so off-centre features are limited by tooling and not by axis travel.