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Siemens 1FT6086-8SF71-4AB1 SIMOTICS Servo Motor - 35 Nm

Siemens SIMOTICS S servo motor 1FT6, 35 Nm, 3000 rpm, Incremental Encoder.

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ManufacturerSiemens

Part number1FT6086-8SF71-4AB1

Torque 35 Nm

Speed 3000 rpm

Encoder Incremental sin/cos 1 Vss 2048 S/R

Holding Brake Yes

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35 Nm nominal torque 3000 rpm maximum speed Force-ventilated Incremental encoder Holding brake included IP65 sealing

Product description

The Siemens 1FT6086-8SF71-4AB1 is a SIMOTICS S synchronous servo motor from the 1FT6 series, providing 35 Nm of torque at 3000 rpm with force ventilation. This model features an incremental encoder (sin/cos 1 Vss 2048 S/R) and a feather key shaft. It includes a holding brake for secure positioning and has a Gamma sealing ring for IP65 protection. The motor is designed for IM B5 (IM V1, IM V3) mounting with power and signal connectors directed axially at the DE (Drive End). Vibration severity grade is N.

This servo motor is suited for demanding industrial automation tasks where precise motion control, reliable positioning, and holding torque are essential. Applications include CNC machinery, robotics, and automated assembly lines in industries such as automotive, aerospace, and general manufacturing.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 1FT6086-8SF71-4AB1. We are committed to providing quality surplus automation components to help businesses optimize their operations and reduce costs.

Technical specifications

Torque	35 Nm
Speed	3000 rpm
Encoder	Incremental sin/cos 1 Vss 2048 S/R
Holding Brake	Yes
Seal	Gamma sealing ring (IP65)
Shaft	Feather key
Connector Outlet	Axial DE
Vibration Severity	N

Common applications

CNC Machining

Robotics

Automated Assembly

Material Handling

Industrial Automation

Manufacturing

Compatible systems

Siemens SINAMICS drives Siemens SIMODRIVE controllers

Also known as

Siemens 1FT6 Servo Motor with IP65 SIMOTICS S Motor DE Axial 1FT6-8SF71-4AB1

Replaces / compatible with

This motor can replace existing Siemens servo motors with similar specifications and axial DE connector configuration, especially where an incremental encoder and holding brake are required.

Technical note

Expert tip

The IP65 rating makes this motor suitable for environments with dust and water jets, while the holding brake ensures position integrity during power loss or maintenance.

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Frequently asked questions

What is the IP rating and encoder type for the Siemens 1FT6086-8SF71-4AB1?

The Siemens 1FT6086-8SF71-4AB1 servo motor has an IP65 rating thanks to its Gamma sealing ring. It features an incremental encoder (sin/cos 1 Vss 2048 S/R) and includes a holding brake.