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PS Automation of Germany: 35 Years Dedicated to Electric Actuators — The PSL, PSQ and PS-AMS Families

source： date：2026-09-28

PS Automation GmbH is a German specialist manufacturer of electric actuators for valves, founded in 1989 and headquartered in Bad Dürkheim. For 35 years it has focused on one thing only — electric and electronic actuators for valve control — with all products "Made in Germany". Note that its earlier domain psautomation.com has been decommissioned; the current official website is www.ps-automation.com.

PS Automation linear electric actuators

PS Automation linear (PSL) actuators (image source: PS Automation official website)

Product System (current official classification)

Category	Models	Ratings
Smart actuators	PS-AMS PSL / PS-AMS PSQ / PS-AMS2 PSQ EX	Linear up to 25kN, quarter-turn up to 3000Nm; the PS-AMS2 PSQ EX is the intelligent explosion-proof variant with a new compact housing and built-in Wi-Fi access point for wireless parameterisation and operation
Linear	PSL	Simple control operations, up to 30kN
Linear fail-safe	PSF / PSF-M, PSF-EX / PSF-M-EX	Up to 2kN, with mechanical fail-safe function or manual override; EX = explosion-proof
Quarter-turn	PSQ	90° actuators for simple control operations, up to 3000Nm
Quarter-turn economy	PSQ-E	Efficient type, up to 150Nm
Low-power industrial	PSR-E	Robust actuators for the low-power range, up to 50Nm
Quarter-turn fail-safe	PSF-Q / PSF-Q-M, PSF-Q-EX / PSF-Q-M-EX	Intelligent, simple and advanced control operations, up to 80Nm

PS Automation quarter-turn electric actuators

PS Automation quarter-turn (PSQ) actuators (image source: PS Automation official website)

Technical Highlights

The patented PS-AMS smart-actuator solution: a smart control unit layered on PSL linear (to 25kN) and PSQ quarter-turn (to 3000Nm) actuators; the new PS-AMS11/12/13 generation supports various voltages and adapts mechanically to most valve types
PS-AMS2 PSQ EX: compact explosion-proof housing with an integrated Wi-Fi access point — wireless parameterisation and operation without opening the cover
Precise positioning, robustness, long life under high loads; high-quality components per harmonised European standards for machinery and electrical equipment
Industries: humidification, shipbuilding, food, ventilation, fire extinguishing, heating, water, cooling, industrial refrigeration, renewables
Online product configurator and virtual showroom available

PS Automation explosion-proof actuators

PS Automation EX series (image source: PS Automation official website)

Note on the Chinese Market

PS Automation (Germany) and SCHIEBEL (Austria) actuators are distributed in China by Maxonic (Shenzhen, stock code 300112). The Chinese channel lists PSL (linear), PSQ (quarter-turn) and PSF (linear fail-safe) series, which correspond to the current official classification as follows: PSL = standard linear, PSQ = standard quarter-turn, PSF = linear fail-safe family.

Official documents are available on the PS Automation website's Downloads page. See also the SCHIEBEL column for the Austrian counterpart.