Star NEW SD-26 Type S

$220,000 - $380,000 Updated 2025-03-15

Key Specifications

Max Spindle

10000 min-1

Tool Capacity

5 tools on the front + 2 tools on the rear

Rapid Traverse

32 m/min

Spindle Power

5.5kW (CONT.) / 7.5kW (10min / 25％ED)

Max Turn Length

260mm (10-15/64 inch)

max bar capacity

26 mm (1.02 in)

Overview

The Star NEW SD-26 Type S is a dual-spindle Swiss-type CNC automatic lathe designed for high-productivity machining of components up to 26mm bar diameter. The SD (Standard Dual) designation reflects the machine's focus on dual-spindle simultaneous operations for maximum throughput, while the 'NEW' prefix and Type S configuration indicate the latest generation with enhanced performance features. The 26mm bar capacity hits a sweet spot between the common 20mm and 32mm classes, providing enough size for larger components without the weight and cost of a full 32mm platform.

The NEW SD-26 Type S features a main spindle reaching 10,000 RPM and a back spindle at 10,000 RPM—matched speeds that enable optimized cycle times on dual-spindle operations where both spindles contribute equally to production output. The machine's defining characteristic is its dual-spindle architecture optimized for simultaneous front and back machining, where the back spindle is not merely a secondary operation station but a full production spindle capable of aggressive machining in parallel with front-spindle operations.

With up to 8 axes including Y-axis capability and up to 28 tool positions with live tooling, the SD-26 Type S provides comprehensive multi-tasking capability. The dual-spindle simultaneous machining approach can reduce cycle times by 30-50% compared to sequential front-then-back processing, making it especially productive for parts requiring significant work on both ends. Star's Motion Control System optimizes the synchronization between spindles for maximum throughput.

The 26mm bar capacity provides access to a range of parts that are slightly too large for 20mm machines but don't require the full 32mm platform. Common applications include larger medical implant screws, automotive sensor housings, hydraulic fittings, and precision connectors. Star's hydraulic-free design, guide bushing technology, and Fanuc 31i-B5 control deliver the precision and reliability expected from Star's premium platforms.

Full Specifications

Parameter	Value
Max Bar Capacity	26 mm (1.02 in)
Max Machining Diameter	26 mm (1.02 in)
Max Machining Length	250 mm (9.84 in)
Main Spindle Speed	10,000 RPM
Back Spindle Speed	10,000 RPM
Live Tool Speed	9,000 RPM
Number Of Axes	Up to 8 (including Y-axis, C1, C2)
Tool Positions	28 (including live tools)
Y Axis Stroke	±15 mm
Guide Bushing	Yes (standard)
CNC Control	Fanuc 31i-B5
Rapid Traverse Rate	32 m/min
Machine Weight	3600kg
Power Consumption	11 kVA
Max Turning Diameter	φ26mm (1-1/64 inch)
Max Turning Length	260mm (10-15/64 inch)
Bar Capacity	φ26mm (1-1/64 inch)
Max Spindle Speed	10000 min-1
Spindle Motor Power	5.5kW (CONT.) / 7.5kW (10min / 25％ED)
Tool Capacity	5 tools on the front + 2 tools on the rear
Rapid Traverse X	36m/min
Rapid Traverse Y	36m/min
Rapid Traverse Z	36m/min
Coolant Capacity	228ℓ
Floor Space	2550 × 1300 × 2000mm
Cnc Control	FANUC 31i -B5 Plus
Electrical	11.98kVA

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

Strengths & Limitations

Strengths

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Limitations

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Best For

Medical device manufacturers producing implant screws, dental components, and surgical instruments in the 20-26mm range with significant front and back features Automotive suppliers producing precision sensor housings, fuel system components, and connectors slightly too large for 20mm Swiss lathes Shops producing parts requiring equal front and back machining content where dual-spindle simultaneous operations maximize productivity Contract manufacturers seeking a mid-size Swiss platform between 20mm and 32mm to cover the gap in their capability range Hydraulic and pneumatic component manufacturers producing precision fittings and valve components in the 20-26mm range

Frequently Asked Questions

01 What does a Star NEW SD-26 Type S cost?

A new Star NEW SD-26 Type S typically costs between $220,000 and $380,000 depending on configuration and options. The dual-spindle architecture commands a moderate premium over comparably sized single-spindle-focused platforms, justified by the cycle time reductions on parts with significant backworking content.

02 What makes the SD-26 different from the SR-20J?

Beyond the larger 26mm bar capacity, the SD-26 Type S is architecturally optimized for simultaneous dual-spindle operations, with matched 10,000 RPM spindles on both main and back. The SR-20J has a 10,000/8,000 RPM main/back spindle split. The SD-26 delivers maximum productivity on parts with balanced front and back machining content.

03 How much cycle time can dual-spindle simultaneous machining save?

For parts with significant work on both ends, dual-spindle simultaneous machining can reduce cycle times by 30-50%. The exact savings depend on how well the front and back operations can be balanced. Parts with minimal backwork see less benefit. The greatest savings come from parts where back operations currently represent 40-60% of total cycle time.

04 What does Type S mean?

Type S indicates the standard guide bushing configuration with Star's latest generation enhancements. The NEW prefix signifies this is the current-production model with the latest improvements to the SD-26 platform, including updated control software, refined thermal management, and optimized Motion Control System algorithms.

05 Is 26mm bar capacity commonly available?

Yes. 26mm (approximately 1 inch) bar stock is widely available from precision bar stock suppliers in all common materials including stainless steel, titanium, brass, aluminum, and engineering alloys. The 26mm size is a standard production diameter used across medical, automotive, and aerospace manufacturing.