Industrial CNC Machine Directory

Star SV-38R

$380,000 - $550,000 Updated 2025-03-15
Star SV-38R Swiss-Type Lathes
01

Key Specifications

Max Spindle

Max. 7,000min-1

Tool Capacity

10 stations

Rapid Traverse

28 m/min

Spindle Power

7.5kW (continuous) / 11.0kW (10min./25%ED)

Max Turn Length

350mm (13-25/32in)

max bar capacity

38 mm (1.50 in)

02

Overview

The Star SV-38R is Star Micronics' high-performance Swiss-type CNC automatic lathe for the 38mm bar capacity class, representing the most capable large-format Swiss-type machine in Star's lineup. The SV (High-Performance) designation combined with the R (Revised) suffix indicates a machine designed for the most demanding applications at the upper end of the Swiss-type size range, where heavy cuts on tough materials meet exacting precision requirements.

The SV-38R features a powerful main spindle reaching 8,000 RPM with substantially higher torque than the SR-38J, enabling aggressive material removal on larger-diameter bar stock in stainless steel, titanium, Inconel, and other demanding aerospace and medical alloys. The back spindle reaches 8,000 RPM for matched front and back performance, and the high-speed live tooling at 8,000 RPM enables aggressive milling operations. With up to 10 axes including dual Y-axis capability, the SV-38R provides comprehensive multi-tasking capability.

At 38mm bar capacity, the SV-38R occupies a unique position in the machine tool market. It's larger than most Swiss-type lathes, giving it access to parts that conventional Swiss shops can't handle, while its Swiss-type architecture delivers precision and surface finish quality that conventional CNC lathes struggle to match on longer shaft-type components. The guide bushing supports the bar stock adjacent to the cutting zone, eliminating deflection even on challenging length-to-diameter ratios.

The SV-38R's enhanced rigidity is critical at the 38mm size where cutting forces are substantially higher than on 20mm or 32mm platforms. Star has reinforced the machine structure and slide systems to maintain precision under the heavy loads that large-diameter Swiss work demands. Combined with Star's hydraulic-free design for vibration-free operation and advanced thermal management for dimensional stability, the SV-38R delivers production precision on the most demanding large-format Swiss applications.

03

Full Specifications

Parameter Value
Max Bar Capacity 38 mm (1.50 in)
Max Machining Diameter 38 mm (1.50 in)
Max Machining Length 380 mm (14.96 in)
Main Spindle Speed 8,000 RPM
Back Spindle Speed 8,000 RPM
Live Tool Speed 8,000 RPM
Number Of Axes Up to 10 (including Y1, Y2, C1, C2)
Tool Positions 32 (including live tools)
Y Axis Stroke ±20 mm
Guide Bushing Yes (guide bushing and NGB available)
CNC Control Fanuc 31i-B5
Rapid Traverse Rate 28 m/min
Machine Weight 4,300kg
Power Consumption 16 kVA
Max Turning Diameter ø38mm (1-1/2in)
Max Turning Length 350mm (13-25/32in)
Bar Capacity 1.5" diameter (1.500)
Max Spindle Speed Max. 7,000min-1
Spindle Motor Power 7.5kW (continuous) / 11.0kW (10min./25%ED)
Tool Capacity 10 stations
Turret Stations 10 stations
Coolant Capacity 220ℓ
Floor Space 3,320 x 1,440 x 1,865mm
Cnc Control Fanuc Series 31i-B5
Electrical 9.5KVA

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

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Strengths & Limitations

Strengths

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Limitations

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05

Best For

Medical device manufacturers producing large orthopedic implants, hip stems, and knee components requiring Swiss-type precision in the 25-38mm range Aerospace shops machining large precision fittings, actuator shafts, and landing gear components that benefit from guide bushing support Defense and space industry manufacturers producing precision components where maximum capability is required on larger-format Swiss work Oil and gas industry manufacturers producing precision valve components, downhole tool shafts, and high-pressure fittings Shops replacing aging large-format Swiss lathes with the latest Star technology for improved precision and productivity
06

Frequently Asked Questions

01 What does a Star SV-38R cost?

A new Star SV-38R ranges from approximately $380,000 to $550,000 depending on configuration. With bar feeder, chip conveyor, and initial tooling, total investment typically reaches $500,000-$700,000. Used SV-38R machines are rare in the market given the specialized nature of 38mm high-performance Swiss work.

02 How does the SV-38R compare to the SR-38J?

The SV-38R offers higher torque, enhanced rigidity, more tool positions (32 vs 30), and premium construction compared to the SR-38J. The SR-38J is the better value for standard 38mm Swiss work. The SV-38R is justified for the most demanding applications requiring maximum performance, precision, and capability.

03 When should I use a 38mm Swiss instead of a conventional CNC lathe?

Choose the SV-38R when parts have length-to-diameter ratios above 3:1, require sub-0.010mm concentricity, need complete front-and-back machining in a single setup, or involve high volumes where the Swiss-type bar feed and back spindle capability outperform conventional chuck work. Parts shorter than 2:1 L/D are usually more economical on conventional lathes.

04 What is the SV-38R's advantage on tough materials?

The SV-38R's high-torque spindle, enhanced rigidity, and vibration-free hydraulic-free design combine to deliver superior performance on titanium, Inconel, and stainless steel. The guide bushing eliminates deflection that would cause chatter on conventional lathes, enabling consistent precision on these demanding materials.

05 Can the SV-38R handle high-volume production?

Yes. With bar feeder integration, parts collection, and chip management, the SV-38R supports continuous unattended production. The 10-axis capability reduces cycle times by enabling simultaneous operations, and Star's proven reliability ensures high uptime rates in demanding production environments.

07

Videos

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Community Discussions

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