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Siemens 1FT6105-8WF71-3EH0 SIMOTICS S Water-Cooled Servo Motor

Siemens SIMOTICS S servo motor, 85 Nm, 3000 RPM, water-cooled, IP64, absolute encoder.

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ManufacturerSiemens

Part number1FT6105-8WF71-3EH0

Torque 85 Nm

Speed 3000 rpm

Cooling Water-cooled

Mounting IM B5

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Water-cooled for high power density EnDat absolute encoder for precise positioning High torque output Integrated holding brake IP64 sealing

Product description

The Siemens 1FT6105-8WF71-3EH0 is a high-performance SIMOTICS S synchronous servo motor featuring water cooling for superior thermal management. This motor offers 85 Nm of torque at 3000 rpm and is designed with an IM B5 mounting. It includes axial connectors for power and signal, and an EnDat 2048 S/R absolute encoder for precise positioning. The shaft is smooth with a circular runout tolerance of N, and the motor is equipped with a holding brake. It is sealed to IP64 using a labyrinth seal.

This water-cooled servo motor is ideal for applications requiring continuous high power output and dynamic performance, such as in advanced machine tools, high-speed automation, and heavy-duty robotics. The absolute encoder ensures accurate positioning upon startup without needing an index pulse.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 1FT6105-8WF71-3EH0. We provide reliable, high-quality components to keep your advanced automation systems running efficiently.

Technical specifications

Torque	85 Nm
Speed	3000 rpm
Cooling	Water-cooled
Mounting	IM B5
Encoder	EnDat 2048 S/R (Absolute)
Shaft	Smooth
Seal	Labyrinth (IP64)
Brake	With Holding Brake

Common applications

High-Performance Machine Tools

Advanced Robotics

High-Speed Automation

Heavy-Duty Machinery

Semiconductor Manufacturing

Compatible systems

Siemens SIMATIC Drives Siemens SINAMICS Drives High-Performance Motion Control Systems

Also known as

Siemens water-cooled servo SIMOTICS S 1FT6 absolute encoder motor 1FT6 Series high torque motor

Replaces / compatible with

This water-cooled SIMOTICS S servo motor is part of the 1FT6 series, designed for demanding applications requiring high torque and precise positioning with an absolute encoder.

Technical note

Expert tip

Proper integration of the water cooling circuit, including flow rate and temperature monitoring, is critical for maintaining optimal performance and longevity of this high-power servo motor.

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Frequently asked questions

What is the advantage of water cooling in the Siemens 1FT6105-8WF71-3EH0?

Water cooling allows the 1FT6105-8WF71-3EH0 to dissipate heat much more effectively than air-cooled motors. This enables higher continuous power output and torque, reduces thermal stress, and allows for more compact designs in demanding applications.