Reference Library › Turning Centers & Lathes › SR-20JII

Reference recordMBB·TURNING-CENTERS-LATHES/STAR-SR-20JIIUpdated 2026-10-10

Photo: Star (manufacturer)

MakeStar

ModelSR-20JII

Machine typeTurning Centers & Lathes

Max. Machining Diameterø20mm (25/32in) OP: ø23mm (29/32in)

Max. Headstock StrokeSTANDARD 205mm (8in) R.M.G.B Type 160mm (6-19/64in) N.G.B. Type Bar diameter x…

ToolNUMBER OF TOOLS 6 tools TOOL SHANK 12mm

5-Spindle Sleeve HolderNUMBER OF TOOLS Front 5 tools Rear 5 tools MAX. DRILLING CAPABILITY ø12mm…

2-Spindle Front Sleeve HolderNUMBER OF TOOLS (SLEEVE) 2 tools MAX. DRILLING CAPABILITY ø10mm (25/64in) MAX.…

Power-Driven AttachmentNUMBER OF TOOLS Cross Milling 3 tools (ER16 + Cartridge Type 2 Pos. Cross…

Rapid Feed Rate35m/min (X1, X2, Z1, Z2), 24m/min(Y2) : type B only

Main Spindle Indexing AngleC-axis control

Main Spindle SpeedMax. 10,000 min⁻¹

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

Coolant Tank Capacity202ℓ

Dimensions (W x D x H)2,250 X 1,200 X 1,700mm

Weight2,750kg

Power Consumption4.8kVA

Maximum Chucking Diameterø20mm (25/32in) OP: ø23mm (29/32in)

Max. Length for Front Ejection100mm (3-15/16in)

📋 Spec data: Detailed (23 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

SR-20JII

Evidence updated 15 October 2026: manuals and documents. How evidence is dated

MBB Model ID MBB-M-BPBJDY · What is this?

Plan the installInstalled cost →

Machine weight (published)2,750 kg ≈ 6,063 lbFloor & foundation Rigging

From the published model specification. Spindle rating is not the machine’s total connected load; confirm the exact unit’s data plate and electrical drawings.

Manufacturer videoWatch on YouTube ↗

Intake Engineering: Speed, Versatility and ReliabilityStar Micronics GB · 5:08 · 2024-10-01

Star Micronics GB · 2:59 · 2023-01-03↗
Star Micronics GB · 1:36 · 2022-07-12↗

About the Star SR-20JII

The Star SR-20JII 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.