Reference Library › Turning Centers & Lathes › SB-20RII

Reference recordMBB·TURNING-CENTERS-LATHES/STAR-SB-20RIIUpdated 2026-10-10

Photo: Star (manufacturer)

MakeStar

ModelSB-20RII

Machine typeTurning Centers & Lathes

Max. Machining Diameterø20mm (25/32in) OP: ø25.4mm (1in)

Max. Headstock StrokeG. B. TYPE 205mm (8in) MR25 : 196mm (7-15/16in) N. G. B. TYPE Bar diameter ×…

Number of Turning Tools6 tools (ø12mm) / 5 tools (ø16mm)

Sleeve HolderNUMBER OF TOOLS 4-tool type ø22mm X 2 Tools/ ø32mm X 2 Tools NUMBER OF TOOLS…

Power-Driven AttachmentNUMBER OF TOOLS Cross Drilling: 2 spindle (ER 16); cartridge type: 3 pos…

Rapid Feed Rate35m/min (X1m Y1, Z1, X2, Z2)

Main Spindle Indexing AngleC-axis Control

Main Spindle SpeedMax. 10,000 min⁻¹ (OP: Max. 8,000 min⁻¹)

Main Spindle Motor2.2kW (cont)/3.7kW (10min/25%ED)

Coolant Tank Capability180ℓ

Dimensions (W × D × H)2,070 × 1,095× 1,775mm Center Height - 1,060mm

WeightApprox. 2,000kg

Power Consumption4.2KVA

Max. Chucking Diameterø20mm (25/32in) OP: ø25.4mm (1in)

Max. Length For Front Ejection105mm (4-9/64in)

Max. Parts Projection Length30mm (1-3/16in)

📋 Spec data: Detailed (21 fields) · compiled from manufacturer and public sources · reference updated 2026-10-10.
These specifications describe the model in general. The year, control generation, spindle, and option package of a specific unit may differ — always verify against the actual machine. Methodology · Data sources.

Star

SB-20RII

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Manufacturer videoWatch on YouTube ↗

Star GB | SB-20RII CNC Sliding Head Lathe DemonstrationStar Micronics GB · 6:10 · 2024-09-17

About the Star SB-20RII

The Star SB-20RII is catalogued under Turning Centers & Lathes in The Machine Blue Book CNC machine reference library. This entry documents the machine for identification and education; specifications above are compiled from manufacturer and public sources and describe the model, not a specific unit.

Used market research

Research Star SB-20RII in the used-machine market directory → — review current and historical seller-source records, then verify availability directly with the originating source.

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Machinery terms

What Is a CNC Lathe / Turning Center?Live Tooling on a Lathe Bar Feeders & Swiss-Type Turning Spindle & Spindle Taper Explained What Is CNC?CNC Controls Spindle Hours vs Machine Hours

Manuals & documents

Published by the manufacturer. Each link opens the document on the manufacturer’s site.

SB-20RII catalog eng Brochure / data sheet · starcnc.com

All Star manuals and documentation →

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