---
title: "Rotary servo actuators – compact & precise TAS actuators"
url: "https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators"
description: "Rotary servo actuators: rotary servo actuator ✓ TAS actuator ✓ Compact & powerful ✓ High precision & efficiency ► Get advice now!"
date: 2026-02-12
modified: 2026-02-24
lastUpdated: 2026-04-13
---
# Rotary servo actuators – compact & precise TAS actuators
Rotary servo actuators
======================
The combination of high-precision gearboxes and high-performance motors opens up new possibilities for every process.
Field Of Application - [Convection cooling](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3AConvection+cooling)
- [Corrosion-resistant](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3ACorrosion-resistant)
- [Food-grade lubrication](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3AFood-grade+lubrication)
- [Hygienic Design](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3AHygienic+Design)
- [Integrated system solution](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3AIntegrated+system+solution)
- [Liquid cooling](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3ALiquid+cooling)
- [Mobile applications](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=appField%3AMobile+applications)
Field Of Application
Output Shape - [Flange](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3AFlange)
- [Hollow shaft](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3AHollow+shaft)
- [Shaft with key](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3AShaft+with+key)
- [Smooth shaft](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3ASmooth+shaft)
- [Splined shaft (DIN 5480)](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3ASplined+shaft+%28DIN+5480%29)
- [System output](https://www.wittenstein-group.com/en-us/products/servo-actuators/rotary-servo-actuators?tx_solr%5Bfilter%5D%5B0%5D=outputShape%3ASystem+output)
Output Shape
Max. Torque (Nm)
Accept
Max. Torque (Nm)
Max. Power (kW)
Accept
Max. Power (kW)
See more filters Hide filters
[ Galaxie® D ](https://www.wittenstein-group.com/en-us/product/galaxie-d)
Ratio24 – 31Max. torque450 – 4050 NmBacklash0 arcmin Galaxie® D – compact, powerful and backlash-free for maximum precision with minimum installation…
[ Miniaturized Galaxie® actuator ](https://www.wittenstein-group.com/en-us/product/miniaturized-galaxie-actuator)
Ratio60 – 61Max. torque150 – 250 NmBacklash0 arcmin Miniaturized Galaxie® actuator – maximum performance for compact robotics and automation
[ cyber® dynamic motor ](https://www.wittenstein-group.com/en-us/product/cyber-dynamic-motor)
DC bus voltage48 VDCMax. torque0.035 – 21 NmMax. speed23000 rpm Brushless servo motors with stainless steel housing and absolute encoder for precision and tight…
[ premo® XP Line ](https://www.wittenstein-group.com/en-us/product/premo-xp-line)alpha Premium Line
Ratio16 – 100Max. torque35 – 450 NmBacklash≤ 2 – 4 arcmin Servo actuator with maximum power density, high torsional rigidity and high radial forces
[ premo® TP Line ](https://www.wittenstein-group.com/en-us/product/premo-tp-line)alpha Advanced Line
Ratio16 – 100Max. torque35 – 380 NmBacklash≤ 1 – 3 arcmin Servo actuator with output flange for exceptional precision and power density
[ premo® SP Line ](https://www.wittenstein-group.com/en-us/product/premo-sp-line)alpha Advanced Line
Ratio16 – 100Max. torque32 – 315 NmBacklash≤ 3 – 5 arcmin Servo actuator with optimum performance for fast positioning tasks
[ TPM+ POWER ](https://www.wittenstein-group.com/en-us/product/tpm-power)alpha Advanced Line
Ratio4 – 100Max. torque15 – 750 NmBacklash≤ 1 – 3 arcmin Compact servo actuator with high torque for linear and rotary applications
[ TPM+ HIGH TORQUE ](https://www.wittenstein-group.com/en-us/product/tpm-high-torque)alpha Advanced Line
Ratio22 – 220Max. torque230 – 950 NmBacklash≤ 1 arcmin Powerful servo actuator with high torsional rigidity and power density
[ TPM+ DYNAMIC ](https://www.wittenstein-group.com/en-us/product/tpm-dynamic)alpha Advanced Line
Ratio16 – 91Max. torque30 – 1300 NmBacklash≤ 1 – 3 arcmin Dynamic servo actuator with small installation space and very smooth running
[ SPM+ / TPM+ endurance ](https://www.wittenstein-group.com/en-us/product/spm-tpm-endurance)alpha Advanced Line
Max. output speed35 – 1500 rpmMax. torque260 – 10000 NmMax. power5.9 – 152 kW Servo actuator with water cooling for high dynamics
[ axenia value ](https://www.wittenstein-group.com/en-us/product/axenia-value)alpha Value Line
Ratio10 – 25Max. torque20.2 – 200 NmBacklash≤ 10 arcmin Servo actuator in a hygienic design
### cymex® 5
### SERVOsoft®
Discover our powerful sizing tools:
cymex® 5 enables the fast, precise, and reliable design of complete drive systems—proven in use worldwide.
[Learn More](https://stage.wittenstein-group.com/int-en/product/cymex-5 "Learn More")
Quickly and easily size complete multi-axis servo systems including all electrical and mechanical components with SERVOsoft®.
[Falscher Link](https://stage.wittenstein-group.com/int-en/product/cymexr-select "Falscher Link")
##### Compact
Minimized space requirements thanks to the compact integration of motor and gearbox.
##### Precision
Perfectly coordinated components for high production quality.
##### Energy efficiency
High power density and low energy consumption for more sustainable processes.
> Our servo actuators offer precise movement, high efficiency, and compact design. Ideal for applications that require accurate positioning and fast response times—while maintaining high energy efficiency.
The goal in developing our servo actuators is to reduce complexity while optimizing efficiency, safety, and connectivity.
### Low moment of inertia
The significantly lower moment of inertia increases productivity and reduces energy consumption.
### Highest power density
The compact power unit consisting of motor and gearbox enables high performance in significantly less installation space.
### Absolute scalability
The technical properties of the unit can be scaled according to the requirements of the application.
### High connectivity
The electrical interface offers connectivity to many different servo controllers.
Our servo actuators are characterized by high power density, low mass moment of inertia, high rigidity, and low backlash. Thanks to these outstanding technical properties, they can make a decisive contribution to increasing productivity and saving energy.
The function of the actuator is to execute a movement precisely, dynamically, and efficiently. Absolute precision meets perfect movement. At the heart of the motor-gear unit is a torsional-rigid precision gear with low torsional backlash and excellent torque density, combined with an equally powerful, permanently excited synchronous servo motor, which ensures low cogging and high speed stability thanks to its distributed winding.
The TPM+, premo®, and axenia rotary servo actuators meet virtually all requirements of drive technology, integration, and industry specifications.
Contact us
------------
Would you like to learn more about our solutions?
We would be happy to advise you—personally, competently, and tailored to your requirements.
[info@wittenstein-us.com](#)
[ 1 630 540-5300 ](tel:16305405300)
[ To the contact form ](https://www.wittenstein-group.com/en-us/contact-locations/contact)