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Siemens 1FK7-HI Synchronous Motor — 2.7 kW, Smooth Shaft, IP65

Siemens 1FK7-HI Series Synchronous Motor

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ManufacturerSiemens

Part number1FK7081-3BF71-1RG1

Manufacturer Siemens

Part Number 1FK7081-3BF71-1RG1

Product Type SIMOTICS S Synchronous Motor

Series 1FK7-HI

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High Inertia Optimized Precision Multiturn Encoder IP65 Environmental Protection DRIVE-CLiQ Communication 2.7 kW Power Output Naturally Cooled

Product description

The Siemens 1FK7081-3BF71-1RG1 is a SIMOTICS S synchronous motor from the 1FK7-HI (High Inertia) series, built for demanding automation tasks. It delivers 2.7 kW of rated power at 3000 rpm, operating at a 600V DC link voltage with a nominal torque of 12 Nm (at 100K). This naturally cooled motor features IMB 5 (IM V1, IM V3) mounting with flange 1 and a rotatable power connector. It is equipped with a 20-bit + 12-bit multiturn absolute encoder (encoder AM20DQI) with a DRIVE-CLiQ interface. This model has a smooth shaft with tolerance N, an IP65 degree of protection, and does not include a holding brake.

This motor is ideal for high-performance applications with higher inertia loads, such as in advanced robotics, high-speed automation, and sophisticated machine tools where precise positioning and dynamic response are critical.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 1FK7081-3BF71-1RG1. We provide reliable, cost-effective solutions for your automation needs, ensuring you receive quality components to keep your operations running efficiently.

Technical specifications

Manufacturer	Siemens
Part Number	1FK7081-3BF71-1RG1
Product Type	SIMOTICS S Synchronous Motor
Series	1FK7-HI
Rated Power (PN)	2.7 kW
DC Link Voltage (UDC)	600 V
Nominal Torque (M0)	12 Nm (100K)
Nominal Speed (NN)	3000 rpm
Cooling	Naturally cooled
Mounting	IMB 5 (IM V1, IM V3) Flange 1
Power Connector	Rotatable
Encoder	Absolute, 20-bit + 12-bit Multiturn, DRIVE-CLiQ (AM20DQI)
Shaft	Smooth, Tolerance N
Brake	Without holding brake
IP Rating	IP65

Common applications

High Inertia Robotics

Advanced Machine Tools

High-Speed Automation

Packaging Machinery

Semiconductor Manufacturing

Complex Motion Control

Compatible systems

Siemens SINAMICS Drives Siemens SIMOTION Controllers Automation systems requiring high inertia load handling and environmental protection

Also known as

Siemens servo motor HI 1FK7-HI AM20DQI Siemens motor IP65

Replaces / compatible with

This motor is part of the Siemens SIMOTICS S 1FK7-HI series, designed for applications requiring higher inertia handling and precise control.

Technical note

Expert tip

The smooth shaft on this IP65 rated motor allows for flexible coupling options, and its design is intended for environments where wash-down procedures or significant dust may be encountered.

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Frequently asked questions

What is the benefit of the IP65 rating on the Siemens 1FK7081-3BF71-1RG1 motor?

The IP65 rating signifies that the Siemens 1FK7081-3BF71-1RG1 motor is dust-tight and protected against water jets. This makes it suitable for use in environments where dust, moisture, or cleaning processes might be present, ensuring reliable operation.