1FK7081-3BF71-1RB1
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The Siemens 1FK7081-3BF71-1RB1 is a high-performance SIMOTICS S synchronous servo motor designed for industrial automation and motion control applications. With a rated power of 2.7 kW and a rated speed of 3000 rpm, this permanent-magnet synchronous motor delivers reliable torque and precision operation. Its natural cooling design and robust IP65 protection ensure long-term durability and stability even in demanding environments. The motor's 8-pole construction and precise mechanical tolerances make it ideal for integration into production line systems requiring high accuracy and dynamic response.
Key Features of Siemens 1FK7081-3BF71-1RB1
- Rated power: 2.7 kW for efficient performance
- Rated speed of 3000 rpm with an 8-pole motor design
- Maximum torque up to 37 Nm and rated torque of 8.7 Nm
- Permanent-magnet synchronous motor with natural cooling (IMB 5 design)
- High torsional stiffness shaft with 71,000 Nm/rad for reduced vibration
- IP65 degree of protection for dust and water resistance
- Low winding resistance of 0.42 Ω at 20º C for energy efficiency
- Integrated permanent-magnet holding brake option available
- Designed with high mechanical and thermal stability for industrial use
Technical Specs of 1FK7081-3BF71-1RB1
Explore Siemens 1FK7081-3BF71-1RB1 technical data for detailed parameters.
| Specification | Value |
|---|---|
| Rated Power | 2.7 kW |
| Rated Speed | 3000 rpm |
| Rated Torque | 8.7 Nm |
| Max Torque | 37.0 Nm |
| Number of Poles | 8 |
| Cooling | Natural |
| Weight | 18.2 kg |
| Degree of Protection | IP65 |
| Voltage Constant at 20º C | 88.5 V/1000 min⁻¹ |
| Winding Resistance | 0.42 Ω |
| Holding Brake Torque | 22.0 Nm (optional) |
Applications / Use Case
This Siemens 1FK7081-3BF71-1RB1 is commonly used in machine automation and production line systems worldwide. Its reliable torque and precision speed control make it ideal for tasks demanding exact positioning and dynamic response, such as robotics, conveyor systems, and packaging machinery. Its robust design supports harsh industrial environments, maintaining performance and reducing downtime for critical operations.
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