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3 weeks ago
1FK7083-2AF74-1SB0
Siemens 1FK7083-2AF74-1SB0 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Siemens 1FK7083-2AF74-1SB0 is a SIMOTICS S-1FK7 permanent‑magnet synchronous servo motor designed for precise, dynamic motion control in industrial automation systems. This compact 80‑frame motor provides an optimum operating point of 3.3 kW at 3000 rpm, with rated torque around 10.5 Nm and maximum torque up to 50 Nm for strong acceleration and responsive positioning. It supports high rotational speeds up to 6000 rpm mechanically (5600 rpm with inverter limits) and offers high efficiency of approximately 93%.
The motor is supplied with a multi‑pole resolver feedback system (matched to the motor pole pairs) and integrated temperature monitoring via a Pt1000 sensor. A permanent‑magnet holding brake is fitted, providing 22 Nm holding torque and operating from a 24 V DC supply. The design features natural cooling, an IP64 degree of protection, IM B5 mounting (IM V1/IM V3 compatible), a feather‑key shaft extension, and rotatable signal and power connectors. The housing is finished in standard anthracite (RAL 7016), making this unit well suited to demanding environments where accurate speed/torque control and reliable holding performance are required.
The motor is supplied with a multi‑pole resolver feedback system (matched to the motor pole pairs) and integrated temperature monitoring via a Pt1000 sensor. A permanent‑magnet holding brake is fitted, providing 22 Nm holding torque and operating from a 24 V DC supply. The design features natural cooling, an IP64 degree of protection, IM B5 mounting (IM V1/IM V3 compatible), a feather‑key shaft extension, and rotatable signal and power connectors. The housing is finished in standard anthracite (RAL 7016), making this unit well suited to demanding environments where accurate speed/torque control and reliable holding performance are required.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number (MLFB) | 1FK7083-2AF74-1SB0 |
| Series | SIMOTICS S (1FK7) |
| Product Type | Permanent-magnet synchronous servo motor |
| Overview | Compact SIMOTICS S 1FK7 servo motor configured with a holding brake and a multi-pole resolver feedback system, designed for precise speed and torque control in industrial motion applications. |
| Motor Type | Permanent-magnet synchronous motor |
| Frame / Shaft Height | 80 |
| Mounting Arrangement | IM B5 (IM V1, IM V3) |
| Degree of Protection | IP64 |
| Cooling | Natural cooling |
| Housing Colour | Anthracite (RAL 7016) |
| Shaft Design | Shaft extension with feather key |
| Encoder / Feedback | Multi-pole resolver (pole pairs correspond to motor pole pairs) |
| Temperature Monitoring | Pt1000 temperature sensor |
| Number of Poles | 8 |
| Rated Speed (100 K) | 3000 rpm |
| Max. Permissible Speed (Mechanical) | 6000 rpm |
| Max. Permissible Speed (Inverter) | 5600 rpm |
| Rated Torque (100 K) | 10.5 Nm |
| Static Torque (60 K) | 10.5 Nm |
| Static Torque (100 K) | 13.30 Nm |
| Maximum Torque | 50.0 Nm |
| Optimum Operating Point (Power) | 3.3 kW |
| Rated Current (100 K) | 7.2 A |
| Stall Current (60 K) | 10.10 A |
| Stall Current (100 K) | 8.20 A |
| Maximum Current | 37.0 A |
| Efficiency | 93.0 % |
| Winding Resistance (20°C) | 0.38 Ω |
| Rotating Field Inductance | 7.0 mH |
| Torque Constant | 1.58 Nm/A |
| Voltage Constant (20°C) | 102.5 V / 1000 min⁻¹ |
| Electrical Time Constant | 1.18 ms |
| Mechanical Time Constant | 18.60 ms |
| Thermal Time Constant | 50 min |
| Moment of Inertia | 29.500 kg·cm² |
| Net Weight | 18.6 kg |
| Shaft Torsional Stiffness | 72000 Nm/rad |
| Concentricity Tolerance | 0.050 mm |
| Radial Runout Tolerance | 0.10 mm |
| Axial Runout Tolerance | 0.10 mm |
| Vibration Severity Grade | 1 |
| Holding Brake | Permanent-magnet brake (integrated) |
| Holding Torque (Brake) | 22.0 Nm |
| Brake Supply Voltage | DC 24 V ± 10 % |
| Brake Coil Current | 0.9 A |
| Brake Opening Time | 60 ms |
| Brake Closing Time | 200 ms |
| Highest Braking Work | 1400 J |
| Electrical Connections | Rotatable connectors for power and signals |
What type of motor is this unit?
It is a permanent-magnet synchronous servo motor from the SIMOTICS S-1FK7 family, designed for dynamic motion control applications.
What are the rated torque and rated speed?
Rated torque is 10.5 Nm (at 100 K), with a rated speed of 3000 rpm.
What is the maximum torque capability?
The datasheet lists a maximum torque of 40.0 Nm and a maximum torque limit of 50.0 Nm (with maximum current conditions).
What is the optimum operating point (power and speed)?
The optimum operating point is stated as 3.3 kW at 3000 rpm.
What current levels should be considered for sizing?
Key current figures include a rated current of 8.20 A, stall current of 10.10 A (100 K), and a maximum current of 37.0 A.
What is the maximum permissible speed?
Maximum permissible mechanical speed is 6000 rpm, and the maximum permissible speed with inverter is stated as 5600 rpm.
What feedback device is fitted for position/speed sensing?
It uses a multi-pole resolver encoder system (the number of pole pairs corresponds to the motor’s pole pairs).
Does it include a holding brake, and what are the brake details?
Yes—this version is supplied with a permanent-magnet holding brake. Holding torque is 22.0 Nm. The brake uses DC 24 V ±10% and is specified with opening time 60 ms and closing time 200 ms; highest braking work is 1400 J.
What mounting arrangement and protection rating does it have?
It is specified for IM B5 mounting (also noted IM V1 and IM V3) and has an IP64 degree of protection.
What cooling method is used?
Cooling is natural cooling (no forced fan specified).
What is the motor frame/shaft height and shaft interface?
The shaft height is 80, and the shaft extension is specified with a feather key.
What is the rotor inertia and motor weight?
Moment of inertia is 29.500 kgcm², and the net motor weight is 18.6 kg.
What motor electrical constants are useful for drive configuration?
Notable constants include torque constant 1.58 Nm/A, voltage constant 102.5 V/1000 min⁻¹ (at 20°C), winding resistance 0.38 Ω (at 20°C), and rotating field inductance 7.0 mH.
Is temperature monitoring included?
Yes, temperature monitoring is via a Pt1000 temperature sensor.
What connector style is provided for power and signals?
Electrical connectors are specified as rotatable connectors for signals and power.
- Servo axis drive for packaging machinery, including indexing, sealing jaws and carton handling
- Precision positioning for pick-and-place units and lightweight gantry systems
- Drive motor for conveyor diverters, smart transfer sections and accumulation modules requiring controlled torque
- Actuation of rotary tables and dial indexing stations in automated assembly lines
- Motion control for labelling, printing and web-handling equipment where stable speed regulation is required
- Axis motor for machine tool auxiliaries such as tool changers, door actuators and part handling
- Automation drive for inspection and test rigs requiring repeatable speed and position profiles
- Servo drive for robotics sub-axes, grippers and end-of-line manipulators needing compact, high-dynamic performance
- Actuator for pumps, mixers or dosing systems where accurate low-speed torque control improves process consistency
- Vertical axis applications where an integrated holding brake helps maintain position during standstill
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
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