Compare side-by-side engineering specifications, spindle torque, RPM, axis travels, tool capacity, CNC controllers, and digital telemetry standards for Star Micronics SR-20R IV vs Star Micronics NEW SP-20.
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Specification Matrix
Verified OEM & MachineSchema Data
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Star Micronics
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Star Micronics
View Specs Page →
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| 1. Machine Classification & Kinematics | ||
| Machine Type | Swiss-Type Automatic Lathes | CNC Lathes & Turning Centers |
| Controlled Axes | 8-Axis Simultaneous | 3-Axis Simultaneous |
| OEM Headquarters | Japan | Japan |
| Model Status / Year | 2024 | 2024 |
| 2. Spindle Speed & Motor Power | ||
| Maximum Spindle Speed | 10,000 RPM | 10,000 RPM |
| Spindle Motor Rating | 3.7 kW (5 HP) More Power | 2.2 kW (3 HP) |
| 3. Work Envelope & Travels (X / Y / Z) | ||
| X-Axis Travel | 120 mm | N/A |
| Y-Axis Travel | 210 mm | N/A |
| Z-Axis Travel | 205 mm | N/A |
| Table Surface Dimensions | Standard Worktable | Standard Worktable |
| Maximum Table Payload | Standard Capacity | Standard Capacity |
| 4. Tool Changer (ATC) & Motion Rates | ||
| Tool Magazine Capacity | 35 Tools | Standard ATC |
| Rapid Traverse Rate | 35 m/min | High-Speed Rapid Feed |
| 5. CNC Control & Telemetry Standards | ||
| Standard CNC Controller | Fanuc 31i-B5 | Fanuc 31i-B5 |
| MTConnect Telemetry Standard | ANSI/MTC1.4 Verified | ANSI/MTC1.4 Verified |
| 6. Machine Mass & Rigidity | ||
| Net Machine Weight | 2,600 kg Heaviest Base | 2,250 kg |
When evaluating Star Micronics SR-20R IV vs Star Micronics NEW SP-20, shop managers must weigh spindle kinematics against overall structural rigidity. The Star Micronics SR-20R IV delivers a competitive edge in heavier stock removal with its 3.7 kW spindle motor. Both builders adhere to standardized industrial communication protocols, facilitating MTConnect machine monitoring across digital factory floors.
When selecting between competing machining centers or turning centers, specification sheets provide only the baseline. Experienced manufacturing engineers should analyze the following core metrics:
Check whether kW and torque are rated continuously or at 15-30 minute duty cycles for roughing operations.
Heavier meehanite cast-iron machine beds absorb cutting harmonics and damp vibrations during high-feed milling.
Ensure the control system supports high-speed look-ahead (G05.1/G08) and standard MTConnect IoT monitoring.