Product

SAI/SARI

Multi-turn actuators

The SAI/SARI type range is designed for the automation of valves in nuclear power plants. SAI/SARI actuators are used inside containment and are qualified in compliance with IEEE 382-2006. The DBE resistant SAI/SARI actuators can take over safety functions under DBE conditions. Multi-turn actuators of SAI type range can be used for open-close duty and positioning duty. SARI actuators are designed for modulating duty.

Product

SAN/SARN

Multi-turn actuators

The SAN/SARN type range is designed for the automation of valves in nuclear power plants. SAN/SARN actuators are used outside containment and are qualified in compliance with IEEE 382-2006. The DBE resistant SAN/SARN actuators can take over safety functions under DBE conditions. Multi-turn actuators of SAN type range can be used for open-close duty and positioning duty. SARN actuators are designed for modulating duty.

Product

PROFOX-L

Linear actuators

Compact linear actuator with variable speed and high control accuracy. Installed in rugged metal housing for harsh service conditions. Smart actuator with a multitude of communication interface, configuration and diagnostic options.

Product

TIGRON TR-M SIL

Multi-turn actuators

The TIGRON in SIL version is a powerful, explosion-proof actuator for highest safety requirements up to SIL 3. It allows flexible configuration and even provides solutions for very complex demands in safety-related applications.

Up to four different safety functions can be configured and their priority freely defined.

Further parameters such as type of seating, tripping torque and overload protection of the safety function can also be set in compliance with the customer’s needs. A timer function protects against pressure surges within the pipeline. The safety functions are controlled and monitored by a safety-related software.

Product

GSI

Part-turn gearboxes

AUMA GSI part-turn gearboxes can be used for operating part-turn valves in nuclear power plants (Inside & Outside Containment).

• For open-close duty
• Type of duty: Short-time duty S2 - 15 min (open-close duty)
• Selection of operation modes: - Motor operation (electric multi-turn actuator) - Manual operation directly with handwheel

Product

GSTI

Multi-turn gearboxes

AUMA GSTI multi-turn gearboxes can be used for operating gate valves and globe valves in nuclear power plants (Inside & Outside Containment).

• For open-close duty
• Type of duty: Short-time duty S2 - 15 min (open-close duty)
• Selection of operation modes: - Motor operation (electric multi-turn actuator) - Manual operation directly with handwheel

Product

SA

SA multi-turn actuators are rated for open-close duty and positioning duty (classes A and B) / (short-time duty S2 - 15 min). Special sizing for longer running times is available for the S2 - 30 min duty. 

SAR multi-turn actuators are rated for modulating duty (class C) S4 - 25 %. Special versions for S4 - 50 % and S5 - 25 % are also available.

The actuators can be combined with different actuator controls: From simple OPEN-CLOSE actuator controls to the micro-controlled version with logging of operating data or fieldbus interface.

Product

SAR

SAR multi-turn actuators are rated for modulating duty (class C) S4 - 25 %. Special versions for S4 - 50 % and S5 - 25 % are also available.

The actuators can be combined with different actuator controls: From simple OPEN-CLOSE actuator controls to the micro-controlled version with logging of operating data or fieldbus interface.

Product

SQ

Part-turn actuators of the SQ .2 type range are designed for open-close duty and positioning duty (classes A and B) / (short-time duty S2 - 15 min).

Actuators of the SQ .2 type range can be combined with various controls: From simple OPEN-CLOSE controls to the micro-controlled version with logging of operating data or fieldbus interface.

Product

SAEx

Explosion-proof devices must be used in plants where potentially explosive atmospheres are likely to occur. These devices are designed so that they will not act as an ignition source. They neither generate ignition sparks nor hot surface temperatures.

Certification is performed in close collaboration with national and international certification bodies.

Product

SQR

Part-turn actuators of the SQR .2 type range are designed for modulating duty (class C) S4 - 25 %.

Actuators of the SQR .2 type range can be combined with various controls: From simple OPEN-CLOSE controls to the micro-controlled version with logging of operating data or fieldbus interface.

Product

FQM/FQMEx SIL

The FQM fail safe unit in SIL version is an innovative and safe actuation solution for opening or closing valves in case of emergencies during power failures. The device is suitable for safety-related applications up to SIL 3. 

The torque required in an emergency is provided via the energy mechanically stored in a constant force spring. The innovative constant force spring motor offers considerable advantages compared to conventional solutions:

• Constant torque characteristics across the overall torque range.
• The spring is not operated during standard operation. As a consequence, actuator sizing can be relatively small.

Video

Type of seating via the device menu

16.04.2026

This video shows how to manually set the type of seating for a valve on TIGRON multi-turn actuators and how to select between limit-dependent or torque-dependent seating in the end positions OPEN and CLOSE.

Video

Limit switching setting via stroke in the device menu

20.04.2026

In this video, you will learn how to set the limit switching for TIGRON multi-turn actuators via the stroke in the device menu if the valve cannot be operated. For this, you can determine the suitable setting value for the stroke based on your valve data. On the basis of this value, you can then directly set the end position via the menu.

Video

Menu navigation

20.04.2026

This video explains the Combi-Switch on TIGRON multi-turn actuators as the key operation element of the device. It describes the three operation modes LOCAL, OFF and REMOTE as well as the basic operating movements engaging, scrolling and toggling. You will learn how to safely navigate through menus, change settings and operate or configure the actuator locally depending on the mode.

Video

Torque switching setting via the device menu

20.04.2026

In this video, you will learn how to set the torque switching for TIGRON multi-turn actuators via the device menu. For this, you specify the tripping torque for directions CLOSE and OPEN. Once setting is complete, perform a test run to check the correct function of the torque switching.

Video

Limit switching setting via the device menu

20.04.2026

In this video, we show you how to set the limit switching of TIGRON multi-turn actuators (TR‑M30X to TR‑M1000X as well as TR‑MR30X to TR‑MR1000X) via the device menu. For this, run the actuator in end positions OPEN and CLOSED and save them. In addition, you will discover the relevant menu items and receive important information on how to proceed safely – including overrun and eventually the test run.