Motion control – platform-open (servo of your choice)
Compatible with
EtherCATPROFINETSIMOTIONFanucSEWBeckhoffSiemens
25+years combined experience
500 kNmaximum force
3,000 mmstroke possible
ISO 9001certified quality
Solutions
We translate technical tasks into robust motion solutions.
The entry point may be a new development, retrofit, series assembly or repair. What matters is that the solution fits the problem: technically sound, commercially appropriate and traceable later in service.
01
Engineering
Sizing force, stroke, speed, installation position, motor, sensors and control.
02
Electric actuators
A, S and X as proven design principles for standard-adjacent and custom solutions.
03
Manufacturing
Machining, assembly, testing and documentation from one source.
04
Repair
Repair, spare parts and retrofit support, also for older electric linear actuators and installed units.
05
Control
Limit switches, encoders, potentiometers, positioning and synchronous control systems.
06
Series & OEM
Repeatable assemblies, defined variants and technical alignment for serial demand.
Industries
Typical tasks instead of an abstract product catalogue.
Many inquiries do not start with a product range. They start with a machine: flap, slide, format adjustment, test bench, retrofit or series assembly. The industries lead faster to the right technical question.
Industry
Machinery & plant engineering
Custom electric actuators for machines that need reliable motion.
With technical challenge, solution route and result. This shows how a load case becomes a matching assembly.
Real-world infrastructure project
Heavy-duty actuator for a lock system after 20 years in service
A heavy electric actuator from a lock project returned to the S+R workshop after roughly 20 years in operation for service and service-life assessment.
The product families show how S+R typically builds force line, space, protection, sensors and control. For customer projects, these principles are adapted, combined or extended.
Control-open: our mechanics – your control system.
We build the actuator – with mechanics proven robust over decades. Which control system drives it remains your decision: the S+R mechanics are not tied to any control brand or generation, but fit into what already runs at your site. The achievable motion performance scales with your control system and drive – the proven mechanics stay independent. That saves concretely: during commissioning, on licences, on spare parts and across the entire machine lifecycle.
Commissioning
Less training effort
Your team stays in its familiar control and operating world – whether Siemens TIA Portal, Beckhoff TwinCAT or your factory standard. No onboarding onto a foreign, proprietary system means shorter commissioning and faster service.
Licences
No additional licence island
You program in the engineering system you have licensed anyway. A second, vendor-bound control software solely for the actuator is unnecessary – no separate licence island to procure and maintain on the side.
Standardisation
One control standard for the plant
The actuator follows your plant standard. That means fewer spare-part and control variants, uniform diagnostics and a consistent maintenance routine – instead of a special solution for a single component.
Independence
No vendor lock-in
No black-box control that ties you to a single supplier over the machine lifecycle. You stay free in service, expansion and the choice of a second source – the actuator follows your control system, not the other way around.
Lifecycle
Investment protection across control generations
Control systems age within a few years, robust mechanics run longer. During a control modernisation or a retrofit the proven actuator stays in place – no forced full replacement just because the control world changes.
Factory standard
Corporate & factory standards met
If your plant mandates a specific control platform, we design the actuator exactly to it – also in the installed base and during retrofit. That saves special approvals and architecture breaks.
You decide – on the control system and on the motor. Which drive delivers the motion is shown in the Motion Control section: the same principle on the drive side.
Platform-open: classic three-phase – or servo for motion control.
We build the actuator. You choose the motor that drives it – from a robust three-phase motor to a servo drive for demanding motion control.
Classic: three-phase motor
Robust, economical standard solution for reliable lifting and positioning motion – proven and long-lasting.
Motion control: servo – platform-open
For precise, dynamic and networked motion we equip the actuator with all common servo motors – e.g. SEW, Beckhoff (EtherCAT), Fanuc, Siemens (PROFINET, SIMOTION) – exactly as it fits your control environment.
Customer-supplied servo motors are possible: you provide the preferred motor, we integrate it into the actuator.
We guide each project from the first load case to the right solution: technically sound, commercially appropriate and as specific as needed - no more and no less.
01
Inquiry
We assess force, stroke, environment, installation position and existing drawings, then identify early what really matters.
02
Sizing
With experience from engineering, manufacturing and service, we select the product range, spindle, motor, sensors and protection class to fit the problem.
03
Manufacturing
Once the technical route is clear, drawing, assembly, testing and documentation come from one source.
04
Service
After delivery, repair, spare parts, retrofit and technical questions remain traceable and supported.
From one source
Manufacturing, testing and service directly at the component.
Series production, custom builds and service work together so load case, interface and documentation remain traceable for engineering, purchasing and maintenance.
Series & OEM
Repeatable assemblies from in-house production.
Spindles, bearings and connection geometry are prepared so serial demand and spare-part supply remain traceable.
Assembly & assessment
Technical inspection directly at the component.
Service cases, retrofit and new designs are handled by people who understand both mechanics and the application.
Custom build
Heavy-duty cylinders for real machine environments.
When force, stroke, mounting or environment differ from standard, the solution is built from drawings, load case and manufacturing experience.
Component quality
Brand components selected around the task.
An electric actuator is only as reliable as the combination of screw, motor, gearbox, coupling, brake, sensors and interface. Depending on the load case, S+R uses proven components from established manufacturers and integrates them into a testable S+R assembly.
Examples of project-specific component manufacturers. The actual selection depends on load case, environment, installation space, control concept and service requirements.
For machine builders, OEMs and maintenance teams worldwide.
This experience becomes relevant where standard catalogues end too early: high forces, limited space, harsh environments, retrofit and documented series capability.
A few details are enough for a reliable initial technical assessment. Missing details are fine – S+R clarifies them with you in the engineering discussion.
Linear Technology 
