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Product description

Siemens 1FT6108-8AC71-4AG0 is a SIMOTICS S synchronous servomotor from the 1FT6 series for demanding servo axes in industrial machinery. This version is documented with 70 Nm standstill torque at 100 K, a rated speed of 2000 rpm and a 600-V-DC-link class. For precise feedback, Siemens 1FT6108-8AC71-4AG0 uses a sin/cos incremental encoder with 1 Vpp and 2048 signal periods per revolution. Natural cooling operates without external fan components. The motor uses IM-B5 flange mounting, and its power and signal connections exit axially on the drive end. A smooth shaft without holding brake and vibration class N are important identification points when comparing spares for existing axes. Protection rating IP64 with a labyrinth seal supports use in industrial machine environments where dust protection and reliable identification are important. The product combines high torque, natural cooling and conventional sin/cos feedback in a defined installed-motor configuration. Its smooth, unbraked shaft clearly distinguishes it from variants with a keyed shaft, holding brake or different encoder technology. For replacement, the MLFB, torque, speed, encoder type, shaft end, flange and connector direction are the primary checks. This motor is suitable where an existing SIMOTICS servo axis must be restored without changing the motor family, feedback principle or mounting design. The complete 1FT6108-8AC71-4AG0 identification remains decisive for same-type replacement.

Siemens 1FT6108-8AC71-4AG0 SIMOTICS S servomotor

Specifications

Manufacturer Siemens
Product series SIMOTICS S 1FT6
Type code 1FT6108-8AC71-4AG0
Product type AC servomotor
Motor type Synchronous motor
Standstill torque 70 Nm at 100 K
Rated speed 2000 rpm
DC-link voltage 600 V
Cooling method Natural cooling
Mounting design IM B5 (IM V1, IM V3)
Connector orientation Axial on the drive end
Encoder type sin/cos 1 Vpp incremental encoder
Encoder resolution 2048 signal periods/revolution
Shaft end Smooth shaft without holding brake
Protection rating IP64
Vibration class N
Number of poles 8
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

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Product safety

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FAQ

Frequently asked questions

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Is there a warranty?

Yes. We provide a 14-day functional warranty for used items. The component must be functional on arrival, and the warranty applies only while the warranty seal remains undamaged. If a fault occurs within 14 calendar days, please contact us in writing. Depending on availability, we will either provide a replacement or refund the full purchase price after the item has been returned. Further details are set out in the terms and conditions supplied with our quotation.

How quickly do you ship, and which shipping options are available?

We normally dispatch available items immediately and, in many cases, on the same working day. For urgent requirements or machine downtime, we will identify the fastest suitable option and can confirm a specific delivery window on request. Express shipping and collection from our premises are also possible by arrangement. We ship worldwide using reliable parcel and freight carriers; freight shipments may require additional preparation to ensure safe delivery.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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