CNC Machining & Robotics Motion Control Solution — Siemens 1FK7101-2AF71-1RB0 | SIMOTICS S-1FK7 Series
Where This Product Is Used
The Siemens 1FK7101-2AF71-1RB0 is a high-performance permanent magnet synchronous servo motor engineered for precision motion control across demanding industrial environments. Typical deployment scenarios include:
- CNC Machining Centers — Spindle and axis drives requiring high dynamic response and positional accuracy
- Industrial Robotics — Joint actuators in 6-axis articulated arms and SCARA robots where torque density and low inertia are critical
- Packaging & Filling Lines — High-speed pick-and-place, capping, and labeling stations demanding repeatable cycle times
- Printing & Converting Machinery — Register control and web tension management requiring smooth, low-ripple torque
- Semiconductor & Electronics Assembly — Precision gantry and wafer-handling stages with micron-level positioning
- Plastics Injection Molding — Clamp, injection, and ejection axes on all-electric IMMs
- Material Handling & Conveyors — Servo-driven indexing tables and transfer systems integrated with SINAMICS drives
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 1FK7101-2AF71-1RB0 |
| Brand / Manufacturer | Siemens AG |
| Product Series | SIMOTICS S — 1FK7 (Compact) |
| Motor Type | Permanent Magnet Synchronous Servo Motor (PMSM) |
| Rated Speed | 2,000 rpm |
| Stall Torque (M₀) | ~48 Nm (refer to Siemens datasheet for exact value) |
| Encoder / Feedback | Absolute encoder (DRIVE-CLiQ interface) — suffix -1RB0 |
| Shaft Configuration | Smooth shaft — suffix -1RB0 |
| Cooling Method | Natural convection (IC 410) |
| Protection Rating | IP64 (standard) |
| Insulation Class | Class F (155 °C) |
| Compatible Drive | SINAMICS S120 / S210 |
| Weight (approx.) | 27.5 kg |
| Country of Origin | Germany / EU |
Always verify final specifications against the official Siemens 1FK7 catalog (order no. E86060-K5577-A121) before system design.
Why Engineers Specify This Model
- DRIVE-CLiQ Native Interface — Plug-and-play commissioning with SINAMICS S120; motor data is read automatically, eliminating manual parameterization errors
- High Torque Density — Compact frame delivers class-leading Nm/kg ratio, reducing machine footprint without sacrificing performance
- Absolute Encoder (Single-Turn / Multi-Turn) — Retains position after power loss; no homing cycle required on restart — critical for safety-rated axes
- Low Cogging Torque — Smooth velocity control at low speeds, essential for grinding, polishing, and precision dispensing
- Proven Reliability — 1FK7 series has >20 years of field deployment in automotive, aerospace, and electronics manufacturing
- Wide Ecosystem — Fully integrated into TIA Portal, SINUMERIK, and SIMOTION control platforms
Complete System Bill of Materials
For a complete servo axis using the 1FK7101-2AF71-1RB0, engineers typically specify:
- Servo Drive: SINAMICS S120 Motor Module (e.g., 6SL3120-1TE23-0AA3) or SINAMICS S210 single-axis drive
- Power Supply: SINAMICS S120 Line Module (Active or Smart Infeed)
- DRIVE-CLiQ Cable: 6FX5002-2DC10-xxxx (motor-to-drive signal cable)
- Power Cable: 6FX5002-5DS01-xxxx (motor power cable, pre-assembled)
- Brake Resistor (if required): SINAMICS braking module
- Controller: SINUMERIK 840D sl / 828D, or SIMATIC S7-1500T with Motion Control
- Gearbox (optional): Siemens SIMOGEAR or third-party planetary gearhead
Contact support@konmask.com for complete BOM pricing and availability.
Compliance & Industry Standards
- CE Marked — EU Machinery Directive 2006/42/EC & Low Voltage Directive 2014/35/EU
- UL / cUL Listed (where applicable)
- RoHS 2 Compliant (Directive 2011/65/EU)
- ISO 9001:2015 — Siemens AG manufacturing quality system
- IEC 60034 — Rotating Electrical Machines standard
- REACH Compliant
Quality Assurance & Sourcing
Konmask.com sources the Siemens 1FK7101-2AF71-1RB0 exclusively through verified, traceable supply channels:
- Each unit is inspected upon receipt — serial number, nameplate data, and packaging integrity verified
- Authenticity confirmed against Siemens product traceability systems where accessible
- Storage in ESD-safe, climate-controlled warehouse to preserve encoder and winding integrity
- Full documentation package available: CE Declaration of Conformity, test reports, and packing list
- Warranty: 12 months from date of shipment (DOA replacement policy)
How to Source This Part
- Request a Quote — Email support@konmask.com with your required quantity and delivery timeline
- Lead Time — Ex-stock units ship within 3–5 business days; non-stock orders typically 4–8 weeks
- Payment — T/T (Bank Transfer), PayPal, and trade credit available for qualified accounts
- Shipping — DHL Express, FedEx International Priority, or sea freight for bulk orders; export documentation included
- After-Sales — Technical support available via email and WhatsApp for commissioning assistance
Application-Specific FAQ
Q: Is the 1FK7101-2AF71-1RB0 compatible with SINAMICS S210?
A: Yes. The -1RB0 DRIVE-CLiQ encoder suffix is natively supported by both SINAMICS S120 and S210 drive families.
Q: What is the difference between -1RB0 and -1AA0 shaft variants?
A: -1RB0 denotes a smooth (plain) shaft; -1AA0 denotes a shaft with key and keyway. Selection depends on your coupling or gearbox interface.
Q: Can this motor be used without a Siemens drive?
A: The DRIVE-CLiQ encoder is proprietary to Siemens. Third-party drives require a compatible encoder adapter or an alternative encoder variant. Contact us for guidance.
Q: What is the IP rating — is it suitable for washdown environments?
A: Standard IP64 protects against dust ingress and water splashing. For washdown or high-pressure cleaning, specify the IP67 variant.
Q: Do you provide Siemens certificates of conformity?
A: Yes. CE Declaration of Conformity and available test documentation are provided with each shipment upon request.
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