1FL6044-1AF61-2AG1

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Siemens 1FL6044-1AF61-2AG1 is a SIMOTICS S-1FL6 high-inertia servo motor designed for accurate, stable motion in demanding automation applications. This permanent-magnet synchronous motor delivers 0.75 kW rated power, 2.39 Nm rated torque and a rated speed of 3000 rpm, with a maximum speed of 4000 rpm and peak torque up to 7.20 Nm for dynamic performance when higher load changes are required. Built with a plain shaft, natural cooling and an IP65 protection rating, it is well suited to industrial environments where dependable positioning and repeatable operation are essential. The motor is fitted with a TTL incremental encoder rated at 2500 signals per revolution (13-bit), and features a rotatable angular connector to support flexible installation. With IM B5 mounting compatibility and a robust 5.20 kg construction, this unit is a practical choice for machine builders and maintenance teams seeking consistent servo control from the Siemens S-1FL6 range.
Specification Description
Part number 1FL6044-1AF61-2AG1
Alternative part number 1FL60441AF612AG1
Manufacturer Siemens
Product series SIMOTICS S-1FL6
Product type Permanent-magnet synchronous servo motor
Inertia class High inertia
Rated power 0.75 kW / 1.02 hp
Rated speed 3,000 rpm
Maximum speed 4,000 rpm
Rated torque 2.39 Nm
Maximum torque 7.20 Nm
Static torque 3.50 Nm
Rated current 2.1 A
Maximum current 6.3 A
Torque constant 1.20 Nm/A
Encoder type Incremental encoder, TTL
Encoder resolution 2500 signals per revolution (13 bit)
Cooling method Natural cooling
Shaft end Plain shaft
Shaft height 45
Degree of protection IP65
Mounting design IM B5 (also suitable for IM V1 and IM V3)
Connection type Rotatable angular connector with flexible outlet direction
Radial runout tolerance Class N
Vibration severity grade Grade A
Thermal class Class B (130 °C)
Ambient operating temperature 0 to 40 °C
Maximum relative humidity 90% RH, non-condensing at 30 °C
Compliance CE, EAC
Moment of inertia 5.200 kgcm²
Net weight 5.20 kg
Product overview Compact Siemens SIMOTICS S-1FL6 servo motor designed for precise motion duties, combining 0.75 kW output, high-inertia construction and an incremental TTL encoder in a durable IP65 housing.

What type of motor is this?

This unit is a SIMOTICS S-1FL6 high-inertia permanent-magnet synchronous motor designed for controlled motion applications where stable servo performance and repeatable operation are important.

What are the rated power, speed and torque?

The motor is rated at 0.75 kW, with a rated speed of 3,000 rpm and a rated torque of 2.39 Nm. These values make it suitable for a wide range of compact industrial motion duties.

What are the maximum speed and torque figures?

The maximum speed is 4,000 rpm and the maximum torque is 7.20 Nm. This gives the motor useful short-term torque capability above its nominal running point.

Is this a high-inertia motor?

Yes. This version is specified as a high-inertia motor. In practice, that can be beneficial in applications that favour smoother running, improved stability and better resistance to load variation during motion.

What encoder is fitted?

It uses an incremental TTL encoder rated at 2500 signals per revolution with 13-bit feedback. For users checking configuration details, this is one of the key characteristics of 1FL6044-1AF61-2AG1.

What is the shaft style?

The motor is supplied with a plain shaft. This is helpful for buyers matching the motor to their preferred coupling or transmission arrangement.

What mounting style does it use?

It is built to IM B5, with IM V1 and IM V3 mounting arrangements also referenced in the data. This gives flexibility when integrating the motor into different machine layouts.

What is the protection rating?

The enclosure protection rating is IP65. That means the motor is built for industrial environments where protection against dust ingress and water jets is important.

How is the motor cooled?

This model uses natural cooling. It does not rely on a separate forced-cooling arrangement in the published specification.

What are the electrical current ratings?

The rated current is 2.1 A and the maximum current is 6.3 A. These figures are useful when checking drive matching and overall system sizing.

What ambient conditions is it designed for?

The stated operating ambient temperature range is 0 to 40 degrees Celsius, with relative humidity up to 90% RH provided there is no condensation at 30 degrees Celsius.

What are the key mechanical details?

Key mechanical details include a shaft height of 45, a moment of inertia of 5.200 kgcm², a net weight of 5.20 kg, radial runout tolerance Class N and vibration severity grade A.

What thermal class does the motor use?

The motor is specified with thermal class B, rated to 130 degrees Celsius. This forms part of the published build and insulation characteristics for the unit.

What connection style does it have?

It features an angular connector with a rotatable outlet direction. This can make cable routing more convenient where installation space is restricted.

Which standards and conformity markings are listed?

The published data lists CE and EAC conformity. For many buyers, this is a useful reference point when reviewing installation requirements and regional equipment expectations.

  • Precise axis movement in compact servo-driven machinery
  • Conveyor indexing and stop-start positioning in automated handling systems
  • Pick-and-place units requiring repeatable speed and torque control
  • Small to medium packaging equipment with synchronised motion requirements
  • Labelling, feeding and transfer mechanisms in production lines
  • Rotary tables and indexing stations for assembly processes
  • Belt-driven linear modules used for accurate product movement
  • Light-duty winding, dispensing and reel-handling applications
  • Automated workstations that need controlled acceleration and deceleration
  • General industrial motion tasks where a high-inertia servo motor is preferred for stable, consistent performance

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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