Star SV-32J II
Key Specifications
Rapid Traverse
max bar capacity
max machining diameter
max machining length
main spindle speed
back spindle speed
Overview
The Star SV-32J II is the second-generation evolution of Star Micronics' high-performance SV-32J Swiss-type CNC automatic lathe, combining the SV series' premium performance with the SR-32J's proven architecture in an updated platform. The 'II' generation brings refined thermal management, enhanced structural rigidity, and updated control algorithms that deliver measurable improvements in precision and productivity over the original SV-32J.
The SV-32J II features a main spindle reaching 10,000 RPM and a back spindle at 10,000 RPM, with built-in motor designs optimized for the 32mm bar class. The matched spindle speeds ensure balanced high-speed capability for front and back operations, which is critical when cycle time optimization requires aggressive backworking at speeds matching front-spindle performance. With up to 10 axes including Y-axis capability and up to 33 tool positions, the SV-32J II provides comprehensive multi-tasking capability for the most demanding 32mm Swiss applications.
The second-generation improvements focus on the fundamentals that matter most in production: thermal stability for consistent precision during extended runs, structural rigidity for better surface finishes and longer tool life, and optimized Motion Control System algorithms for faster cycle times. These refinements don't add dramatic new features but deliver the incremental precision and productivity gains that compound into significant competitive advantage over production hours and months.
Star's hydraulic-free design carries through to the SV-32J II, providing vibration-free operation and eliminated hydraulic maintenance. The Fanuc 31i-B5 control with updated firmware provides faster processing and enhanced programming capabilities, and Star's programming environment simplifies multi-axis synchronized program creation. Guide bushing and non-guide bushing configurations are both supported.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 32 mm (1.26 in) |
| Max Machining Diameter | 32 mm (1.26 in) |
| Max Machining Length | 320 mm (12.6 in) |
| Main Spindle Speed | 10,000 RPM |
| Back Spindle Speed | 10,000 RPM |
| Live Tool Speed | 9,000 RPM |
| Number Of Axes | Up to 10 (including Y1, Y2, C1, C2) |
| Tool Positions | 33 (including live tools) |
| Y Axis Stroke | ±18 mm |
| Guide Bushing | Yes (guide bushing and NGB available) |
| CNC Control | Fanuc 31i-B5 |
| Rapid Traverse Rate | 32 m/min |
| Machine Weight | 3,100 kg (6,834 lb) |
| Power Consumption | 13 kVA |
Specifications sourced from starcnc.com — verified 2026-03-28
Strengths & Limitations
Strengths
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Limitations
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Best For
Frequently Asked Questions
01
A new Star SV-32J II typically costs between $320,000 and $480,000 depending on configuration and options. The II generation commands a modest premium over the original SV-32J for the enhanced performance. Used first-generation SV-32J machines are available from $100,000-$250,000.
02
The SV-32J II features improved thermal management for better dimensional stability, refined casting designs for enhanced vibration damping, updated MCS algorithms for optimized cycle times, and faster control processing. These refinements deliver measurable improvements in tolerance holding and surface finish quality.
03
The SV-32 offers B-axis capability and slightly more tool positions (35 vs 33) in the highest-end configuration. The SV-32J II offers second-generation thermal and rigidity improvements not yet available on the SV-32. Choose the SV-32 for B-axis angular work, and the SV-32J II for maximum precision stability.
04
Yes. The SV-32J II maintains tooling compatibility with the first-generation SV-32J. Shops upgrading from the original model can transfer their existing tooling and toolholders, minimizing the transition investment and setup time.
05
For shops running 2-3 shifts, the improved cycle times, reduced scrap from better thermal stability, and lower maintenance costs typically deliver ROI within 2-3 years. The calculation depends on part complexity, volume, and the value of the precision improvements to your specific applications.
Videos
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Community Discussions
Owner experience and review — Star spindle orientation help : r/Machinists - Reddit
Community discussion — Any idea why my Star SR32J swiss lathe keeps ... - Reddit
Community discussion — OTS start up failure : r/Machinists - Reddit
Community discussion — Buyers beware, stay away from this brand. : r/Machinists - Reddit
Links to community discussions. Summaries are editorial — visit the original thread for full context.




