Siemens SIMOTICS S-1FK7 & S-1FT7 Synchronous Servo Motors
Brand: Siemens Motion Control | Series: SIMOTICS S (1FK7 Standard / High Dynamic & 1FT7 High Performance)
Brand Ownership & Product Line Clarification — Siemens Motion Control:
Following Siemens' corporate restructuring where low-to-medium voltage induction motors were transitioned to Innomotics, Siemens has strictly retained its core motion control and automation portfolio under the Siemens Digital Industries division.
Engineering Advantage & Drive Integration:
• Siemens Proprietary Architecture: SIMOTICS S-1FK7 and S-1FT7 AC permanent-magnet synchronous servo motors continue to be developed, engineered, and manufactured directly by Siemens.
• Native SINAMICS Integration: Fully integrated with SINAMICS S120, S210, and SINAMICS G120 drive systems via electronic nameplate (DRIVE-CLiQ), enabling plug-and-play parameter configuration, high-resolution optical/magnetic feedback, and multi-axis synchronism.
• High Dynamic vs. Peak Performance: 1FK7 delivers ultra-compact dimensions with high overload capability for general automation, while 1FT7 provides maximum torque accuracy, negligible cogging torque, and liquid cooling options for high-end CNC machine tools and precision robotics.
Following Siemens' corporate restructuring where low-to-medium voltage induction motors were transitioned to Innomotics, Siemens has strictly retained its core motion control and automation portfolio under the Siemens Digital Industries division.
Engineering Advantage & Drive Integration:
• Siemens Proprietary Architecture: SIMOTICS S-1FK7 and S-1FT7 AC permanent-magnet synchronous servo motors continue to be developed, engineered, and manufactured directly by Siemens.
• Native SINAMICS Integration: Fully integrated with SINAMICS S120, S210, and SINAMICS G120 drive systems via electronic nameplate (DRIVE-CLiQ), enabling plug-and-play parameter configuration, high-resolution optical/magnetic feedback, and multi-axis synchronism.
• High Dynamic vs. Peak Performance: 1FK7 delivers ultra-compact dimensions with high overload capability for general automation, while 1FT7 provides maximum torque accuracy, negligible cogging torque, and liquid cooling options for high-end CNC machine tools and precision robotics.
The Siemens SIMOTICS S-1FK7 and S-1FT7 Servo Motor Family provides industry-leading torque density, dynamic responsiveness, and positioning accuracy for demanding motion control tasks. Available across shaft heights (SH) 28 to 132, offering stall torques from 0.16 Nm up to 125 Nm and speeds up to 6,000 rpm, these servo drives feature natural cooling, forced ventilation, or water cooling. Standard options include DRIVE-CLiQ digital interface encoders, 24V holding brakes with backlash-free coupling, and IP64/IP65/IP67 enclosure protection. They are heavily specified in CNC milling spindles, high-speed pick-and-place robots, packaging machines, printing presses, and automated automotive manufacturing lines.
Technical Specifications
| Model / Part Number | 1FK7060-2AC71-1AA0 (Stall Torque 6.0 Nm, Rated Speed 2000 rpm, Shaft Height 63, Natural Cooling) |
|---|---|
| Brand Lineage | Siemens Digital Industries (100% Authentic Siemens Motion Control Channel) |
| Motor Technology | Permanent-Magnet Synchronous AC Servo Motor (Rare-Earth Neodymium Magnets) |
| Product Series | SIMOTICS S-1FK7 (Compact / High Dynamic) & SIMOTICS S-1FT7 (Peak Precision / Heavy Machining) |
| Static Stall Torque Range ($M_0$) | 0.16 Nm to 125 Nm (Comprehensive series torque rating) |
| Rated Operating Speeds | 1500 rpm, 2000 rpm, 3000 rpm, 4500 rpm, 6000 rpm |
| Feedback / Sensor Systems | DRIVE-CLiQ Interface, Absolute Encoders (20-bit to 24-bit Multi-Turn), Incremental Encoders, Resolvers |
| Brake & Shaft Executions | Plain shaft / Keyway with feather key; with or without integrated permanent-magnet 24V holding brake |
Siemens SIMOTICS S-1FK7 / 1FT7 Servo Motor Selection Directory
Procurement selection guide for Siemens Synchronous Servo Motors. Review primary ratings across SIMOTICS S-1FK7 (Compact / High Dynamic) and SIMOTICS S-1FT7 (High Performance). Identify exact shaft heights (SH), static stall torques ($M_0$), rated speeds ($n_N$), and official Siemens order code structures:
| Brand | Series | Shaft Height | Stall Torque ($M_0$) | Rated Speed ($n_N$) | Encoder / Feedback | Order Number / Model Code |
|---|---|---|---|---|---|---|
| Siemens | SIMOTICS S-1FK7 | SH 28 | 0.16 Nm | 6000 rpm | Absolute EnDat / Multi-turn | 1FK7011-5AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 28 | 0.35 Nm | 6000 rpm | Absolute EnDat / Multi-turn | 1FK7015-5AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 36 | 0.85 Nm | 6000 rpm | DRIVE-CLiQ / Optical 20-bit | 1FK7022-5AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 48 | 1.30 Nm | 6000 rpm | DRIVE-CLiQ / Optical 20-bit | 1FK7032-2AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 48 | 3.00 Nm | 4500 rpm | DRIVE-CLiQ / Optical 20-bit | 1FK7034-2AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 63 | 3.30 Nm | 6000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7042-2AK71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 63 | 6.00 Nm | 3000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7060-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 63 | 11.0 Nm | 3000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7063-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 80 | 11.0 Nm | 3000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7080-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 80 | 16.0 Nm | 3000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7083-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 80 | 22.0 Nm | 3000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7084-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 100 | 18.0 Nm | 2000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7100-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 100 | 28.0 Nm | 2000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7101-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FK7 | SH 100 | 36.0 Nm | 2000 rpm | DRIVE-CLiQ / Optical 24-bit | 1FK7103-2AC71-1AA0 |
| Siemens | SIMOTICS S-1FT7 | SH 63 | 4.50 Nm | 6000 rpm | DRIVE-CLiQ / High-Resolution | 1FT7062-5AK71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 63 | 9.00 Nm | 4500 rpm | DRIVE-CLiQ / High-Resolution | 1FT7066-5AH71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 80 | 14.0 Nm | 3000 rpm | DRIVE-CLiQ / High-Resolution | 1FT7082-5AF71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 80 | 27.0 Nm | 3000 rpm | DRIVE-CLiQ / High-Resolution | 1FT7086-5AF71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 102 | 36.0 Nm | 3000 rpm | DRIVE-CLiQ / High-Resolution | 1FT7102-5AF71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 102 | 65.0 Nm | 2000 rpm | DRIVE-CLiQ / High-Resolution | 1FT7108-5AC71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 132 | 90.0 Nm | 2000 rpm | DRIVE-CLiQ / Water Cooled | 1FT7132-5AC71-1BA0 |
| Siemens | SIMOTICS S-1FT7 | SH 132 | 125 Nm | 1500 rpm | DRIVE-CLiQ / Water Cooled | 1FT7136-5AB71-1BA0 |
Documentation & Technical Catalogs
SIMOTICS S-1FK7 vs. S-1FT7 Engineering Comparison Matrix
Understand the core differences between the versatile 1FK7 workhorse series and the peak-precision 1FT7 machining series:
| Servo Motor Family | Primary Dynamic Profile | Thermal & Cooling Concept | Feedback Precision Rating | Primary Automation Applications |
|---|---|---|---|---|
| SIMOTICS S-1FK7 Compact | High torque density, low moment of inertia | Natural surface cooling (IP64 / IP65) | Up to 24-bit multi-turn absolute encoder | General material handling, packaging machinery, pick-and-place robots, auxiliary axes. |
| SIMOTICS S-1FK7 High Dynamic | Extreme acceleration with low rotor inertia | Natural cooling with optimized heat dissipation | DRIVE-CLiQ absolute optical encoder | High-speed indexing tables, electronic gearboxes, dynamic flying shears, feeder axes. |
| SIMOTICS S-1FT7 High Performance | Negligible cogging torque, peak surface finish | Natural cooling, forced ventilation, or liquid cooling | Ultra-high resolution optical encoders (>24-bit) | High-precision CNC machine tool feed axes, milling spindles, high-speed printing, test benches. |
Legacy Siemens 1FK6 / 1FT6 to 1FK7 / 1FT7 Retrofit & Migration Guide
Obsolete legacy Siemens servomotors (1FK6, 1FT6, 1FT5) can be replaced directly by current SIMOTICS S-1FK7 and S-1FT7 units. Review the 1-to-1 mechanical and electrical compatibility details:
| Obsolete Siemens Servo Model | Obsolescence / Service Challenge | Current SIMOTICS S Direct Replacement | Drive Compatibility | Mounting & Encoder Fitment Notes |
|---|---|---|---|---|
| Siemens 1FK6 Series (Analog) | Discontinued resolver feedback; lower dynamic overload | SIMOTICS S-1FK7 Compact 100% Drop-In | SINAMICS S120 / S210 | Exact match for flange dimensions, pilot register diameter, and shaft extension. |
| Siemens 1FT6 Series (SINUMERIK) | Heavy motor weight; high rotor inertia | SIMOTICS S-1FT7 Performance Direct Retrofit | SINAMICS S120 / 611D | Drop-in replacement for CNC machine axes. Substantially lower thermal drift. |
| Siemens 1FT5 Series (Analog Drives) | Complete lack of OEM spare parts and cables | SIMOTICS S-1FK7 / S-1FT7 Suite Modernization | SINAMICS S120 / V90 | Mechanical transition plates and adapter cables available for complete drive modernization. |
Expert Motion Control Sourcing & Engineering Support by WeDrive
WE DRIVE HONGKONG LIMITED provides technical sourcing, motion sizing, and global supply for the complete Siemens SIMOTICS S-1FK7 and S-1FT7 Servo Motor portfolio. Whether your machinery calls for a compact 2000 rpm feed axis motor (1FK7060-2AC71), a high-speed packaging drive (1FK7042-2AK71), a heavy-duty CNC milling drive with holding brake (1FT7086-5AF71-1BA0), or pre-assembled MOTION-CONNECT power and DRIVE-CLiQ signal cables, our engineering team confirms complete compatibility before shipping.
When replacing older servomotors from CNC machines, automated logistics cells, or printing lines, switching to modern 1FK7/1FT7 servo units provides higher positioning repeatability, superior energy efficiency, and instant electronic nameplate recognition with SINAMICS converters. Provide us with your existing motor nameplate photograph or full order code, and our technical sales engineers will deliver an authentic, factory-warranted quotation with international express delivery.
When replacing older servomotors from CNC machines, automated logistics cells, or printing lines, switching to modern 1FK7/1FT7 servo units provides higher positioning repeatability, superior energy efficiency, and instant electronic nameplate recognition with SINAMICS converters. Provide us with your existing motor nameplate photograph or full order code, and our technical sales engineers will deliver an authentic, factory-warranted quotation with international express delivery.
Core Benchmark Model Standard Configurations
- 1FK7015-5AK71-1AA0 (0.35 Nm)
- 1FK7022-5AK71-1AA0 (0.85 Nm)
- 1FK7032-2AK71-1AA0 (1.30 Nm)
- 1FK7034-2AK71-1AA0 (3.00 Nm)
- 1FK7042-2AK71-1AA0 (3.30 Nm)
- 1FK7060-2AC71-1AA0 (6.00 Nm)
- 1FK7063-2AC71-1AA0 (11.0 Nm)
- 1FK7080-2AC71-1AA0 (11.0 Nm)
- 1FK7083-2AC71-1AA0 (16.0 Nm)
- 1FK7084-2AC71-1AA0 (22.0 Nm)
- 1FK7100-2AC71-1AA0 (18.0 Nm)
- 1FK7101-2AC71-1AA0 (28.0 Nm)
- 1FK7103-2AC71-1AA0 (36.0 Nm)
- 1FT7062-5AK71-1BA0 (4.50 Nm)
- 1FT7066-5AH71-1BA0 (9.00 Nm)
- 1FT7082-5AF71-1BA0 (14.0 Nm)
- 1FT7086-5AF71-1BA0 (27.0 Nm)
- 1FT7102-5AF71-1BA0 (36.0 Nm)
- 1FT7108-5AC71-1BA0 (65.0 Nm)
- 1FT7136-5AB71-1BA0 (125 Nm)
