1FT6108-8SF71-1SH0 Siemens SIMOTICS S-1FT6 Servo Motor, 90 Nm, 3000 rpm, Forced Ventilation
The Siemens 1FT6108-8SF71-1SH0 is a SIMOTICS S-1FT6 synchronous servo motor rated 90 Nm stall torque (100 K) at 3000 rpm, with forced ventilation from a separately driven fan, for a 600 V DC link. This version has a multi-pole resolver (P=4) without DRIVE-CLiQ interface, a smooth shaft and an integrated holding brake, with the connector outlet transverse right. The 1FT6 is a high-performance servo series that has been widely used for decades in machine tools, presses, printing machines and handling systems, and many installations still need like-for-like replacements.
1FT6108-8SF71-1SH0 Technical Data (Siemens)
| Specification | Value |
|---|---|
| Product | SIMOTICS S-1FT6 synchronous servo motor |
| Frame size / length | 1FT610, length 8 (8-pole) |
| Stall torque (M0, 100 K) | 90 Nm |
| Rated speed | 3000 rpm |
| DC link voltage | 600 V |
| Cooling | Forced ventilation (mounted separately driven fan) |
| Type of construction | IM B5 (IM V1, IM V3) |
| Connection | Power and signal connectors, outlet transverse right |
| Encoder | Multi-pole resolver (P=4), without DRIVE-CLiQ interface |
| Shaft | Smooth shaft, circular runout tolerance N |
| Holding brake | Yes |
| Vibration severity grade | N |
| Degree of protection | IP64 (labyrinth seal) |
Reading the Order Code
| Code position | Meaning |
|---|---|
| 1FT6108-8 | 1FT6 frame size 10, length 8 |
| S | Forced ventilation |
| F | 3000 rpm |
| 71 | Standard IM B5 version |
| 1 | Connector outlet transverse right |
| S | Resolver, multi-pole (P=4) |
| H | Smooth shaft with holding brake |
| 0 | Vibration grade N, IP64 |
Why Replace Like-for-Like
- Exact mechanical fit: same flange, shaft and connector orientation as the installed motor
- Same feedback system: multi-pole resolver for drives that use resolver evaluation
- Holding brake integrated: suitable for vertical axes and load holding
- Forced ventilation: delivers the full 90 Nm torque rating in demanding duty cycles
Typical Applications
- Machine tool feed axes and rotary axes
- Presses and forming machines
- Printing and converting machines
- Heavy handling and positioning axes
Related 1FT6108-8SF71 Versions
| Order number | Encoder | Shaft / brake |
|---|---|---|
| 1FT6108-8SF71-1SH0 | Resolver multi-pole, without DRIVE-CLiQ | Smooth shaft, with brake |
| 1FT6108-8SF71-1SG0 | Resolver multi-pole, without DRIVE-CLiQ | Smooth shaft, without brake |
| 1FT6108-8SF71-4UB0 | Resolver multi-pole (P=4), with DRIVE-CLiQ, axial outlet | Feather key, with brake |
| 1FT6108-8SF71-1FH0 | Absolute encoder 2048 S/R, with DRIVE-CLiQ | Smooth shaft, with brake |
Buy the 1FT6108-8SF71-1SH0 Siemens from Atlantech Drives
Atlantech Drives specialises in sourcing Siemens SIMOTICS servo motors, including 1FT6 versions for like-for-like replacement, for machine builders and maintenance teams worldwide, with fast shipping. Contact our commercial team for availability, condition options, pricing and lead time on the 1FT6108-8SF71-1SH0. Request your quote today.
