
RSA-ST Electric Linear Rod Actuators
The RSA-ST electric linear rod actuator combines excellent accuracy with a low-to-medium thrust capacity
RSA Quick Ship Program – Fixed stroke RSA32ST available in one week! Limited supply available
RSA-ST electric linear rod actuators feature accurate, medium force performance making them ideal for replacing pneumatic cylinders. High thrust bearings and internal bumpers deliver heavy duty performance. A rigid, strong aluminum housing allows for easy mounting of switches and sensors. These electric linear rod actuators are suitable for pneumatic replacement, general motion control applications and many more.
- 6 body sizes with built-to-order stroke lengths of 12 to 60 inches (305 to 1,524 mm)
- Stroke lengths up to 60 inches (1,524 mm)
- Forces of up to 4,038 lbf (40,257 N)
- Ball, solid, and bronze screw choices
- Low-backlash ball screw option
- Flexible mounting options
- Need faster delivery? Quick ship configurations now available
Size | 12 RSA-ST | 16 RSA-ST | 24 RSA-ST | 32 RSA-ST | 50 RSA-ST | 64 RSA-ST |
---|---|---|---|---|---|---|
Standard | 12 in. | 18 in. | 24 in. | 36 in. | 48 in. | 60 in. |
Metric | 305 mm | 457 mm | 610 mm | 914 mm | 1,219 mm | 1,524 mm |
Size | 12 RSA-ST | 16 RSA-ST | 24 RSA-ST | 32 RSA-ST | 50 RSA-ST | 64 RSA-ST |
---|---|---|---|---|---|---|
Standard | 130 lbf | 130 lbf | 868 lbf | 1,357 lbf | 3,034 lbf | 4,028 lbf |
Metric | 578 N | 578 N | 3,861 N | 6,036 N | 13,496 N | 17,917 N |
RSA Options

RSA-ST 64 Critical Speed Capacities

RSA-ST 12.16 PV Limits (Solid Nuts)

RSA-ST 24, 32, 50, 64PV Limits (Solid and Bronze Nuts)

RSA Switch Specifications and Installation

RSA Switch Wiring and Dimensions

RSA-ST Actuator Weights

RSA-ST Actuator Specs (US Conv.)

RSA-ST Actuator Specs (Metric)

RSA-ST 12, 16, 24 Critical Speed Capacities

RSA-ST 32, 50 Critical Speed Capacities

RSA-ST Ball Screw Life Graphs

RSA-ST Screw Buckling Load

RSA-ST Actuator Dimensions

RSA-ST Rod End Options: Spherical and Clevis

RSA-ST Rod End Options: Alignment Coupler and Externally Threaded

RSA-ST Mounting Options: Eye, Clevis

RSA-ST Mounting Options: Foot, Rod Extention

RSA-ST Mounting Options: Trunnion, Back Flange

RSA-ST Mounting Options: Front Flange, Mounting Plate

RSA-RP Mounting Codes

Z12 Zerk Orientation

Information Center:
English
Chinese
German
Spanish
Catalogs & Brochures
- RSA-GSA Electric Linear Rod Actuators Catalog
- SOLUCIONES DE CONTROL DE MOVIMIENTO (Spanish, Corporate Overview-Motion Control Solutions Brochure)
- 公司概述 (Chinese, Corporate Overview Brochure)
- Corporate Overview-Linear Motion Solutions Brochure (English)
- Actuators for Active Security Barriers
- OEM Actuator Solutions Brochure
- Brochure sur l'entreprise Tolomatic (French, Corporate Overview-Linear Motion Solutions Brochure)
- Gantry & Multi-Axis Solutions Brochure
- Elektrischer RSA/GSA Kolbenstangenantrieb – Katalog (RSA/GSA Actuator brochure, German)
- Automotive Applications Brochure
- 汽车行业应用手册 Brochure (Chinese: Automotive Applications Brochure)
- Aplicaciounes de la Ind. Automotriz (Auto Appl SP)
- Medical and Life Sciences brochure
- Unternehmensübersicht (German, Corporate Overview brochure)
- Electric Pressing Solutions Brochure
Certifications
E-Books
Flyers
Guides
- Selecting the Optimal Screw Technology
- Actuator Life: How to estimate for ball and roller screw actuators
- INFOGRAPHIC: Accuracy and Repeatability in Linear Actuators
- INFOGRAPHIC: Calculating Total Cost of Ownership
- INFOGRAPHIC: Ten Tips for Specifying Electric Rod Actuators
- INFOGRAPHIC: Pneumatic, traditional electric, and integrated electric rod actuators
- 如何选择 螺杆? 甄选 正确的技术 (Chinese, How to select the right lead screw for an electric actuator)
- A Guide to Converting Hydraulics to Electric Actuators
- Abschnitt: Welches Gewinde? Die richtige Technologie auswählen (German - Which Screw)
- Guide to Third Party Motor Integration
- Switch Reference Guide
News Releases
Parts & Maintenance Sheets
- RSA12 Electric Rod Actuator Part Sheet
- RSA16 Electric Rod Actuator Part Sheet
- RSA24 Electric Rod Actuator Part Sheet
- RSA32 Electric Rod Actuator Part Sheet
- RSA50 Electric Rod Actuator Part Sheet
- RSA64 Electric Rod Actuator Part Sheet
- Specifying a Customer Motor
- Material Safety Data Sheet: Mobilith SHC 220 Grease
- Material Safety Data Sheet: Mobil SHC Polyrex 462 Grease (PN: 27331303)
- Material Safety Data Sheet: SAF-T-EZE Food/Drug Lubricant (PN: 09121112)
- Belt Tension Procedure, RSX & RSA Rod Cylinders
Terms & Conditions
Videos
White Papers
- Top Ten Tips: How to specify electric rod-style actuators for optimal performance, reliability and efficiency
- Electric actuators vs. pneumatic cylinders: A comparison based on total cost of ownership
- The truth about actuator life: Screw drive survival
- Introduction to accuracy and repeatability in linear motion systems
- Electric Rod Actuators vs. Hydraulic Cylinders: A Comparison
- Elektrische Stangenantriebe vs. Hydraulikzylinder: Ein Vergleich der Vor- und Nachteile beider Technologien weißes Papier (Electric vs Hydraulic WP, German)
- A technical comparison: Performance of pneumatic cylinders and electric rod actuators
- Electric actuator technology comparison: Integrated and traditional designs
- Utilizzo degli attuatori elettrici nelle applicazioni di processo (WP: IT: Actuators for F&B processing applications)
- Actuadores eléctricos con vástago frente a cilindros hidráulicos: una comparación de los pros y los contras de cada tecnología (Spanish - White paper - Electric vs Hydraulic Actuators)
- Top 5 best practices for designing electric actuators into food processing equipment
- Elektrische Antriebe und Pneumatikzylinder: Ein Vergleich basierend auf den Gesamtbetriebskosten weißes Papier (GERMAN, TCO WhitePaper)
- Elektrische Stangenantriebe vs. Hydraulikzylinder: Ein Vergleich der Vor- und Nachteile beider Technologien weißes Papier (GERMAN, Electric vs Hydraulic WP)
- Designing Gantry and Multi-Axis Automation Systems
- Diez Consejos Óptimos: Cómo especificar los actuadores eléctricos de vástago para obtener rendimiento, confiabilidad y eficiencia óptimos
- Medical Device Motion Design Considerations
- Integrierte und traditionelle Bauweisen Weißbuch (DE, Integrated and traditional designs WP)
Application Checklists
- Electric Rod-Style Actuator Application Checklist
- _HOJA DE TRABAJO - DATOS DE APLICACIÓN (Electric Rod-Style Actuator Application Checklist-Spanish Translation)
- _FICHE TECHNIQUE DES DONNÉES D'APPLICATION (Electric Rod-Style Actuator Application Checklist-French Translation)
- _FOGLIO DI LAVORO - DATI APPLICATVI (Electric Rod-Style Actuator Application Checklist-Italian Translation)
- Anwendungsdatenarbeitsblatt (Electric Rod-Style Actuator Application Checklist-German)
- Hydraulic Cylinder Replacement Worksheet
- Programa de envío rápido (^ES RSA Quick Ship Flyer, Spanish)
RSA & GSA Service Parts Ordering

RSA Ordering

RSA & GSA Selection Guidelines
