Linear Technology Custom electric linear actuators
S+R designs every electric linear actuator from the load case: force line, installation space, protection class and control determine the solution – not a catalogue grid. The A, S and X series are the technology toolbox from which custom actuators for new development, retrofit and series production are built.
Product ranges
Each family can be adapted with motor, spindle, sensors, protection class, mounting and control to fit the load case. The selection starts the project clarification; it does not end it.
Axially guided thrust for high loads and clear installation conditions.
Axial motor arrangement for maximum force density
rough industrial environments, outdoor use, high forces, positioning and synchronous motion tasks
Compact thrust when machine space is limited.
Parallel or angular drive arrangement for short installed lengths
machine modules with limited axial space and demanding integration requirements
Closed design for dynamics, dirt and hard-to-access equipment.
Timing belt or chain drive for demanding conditions
dirt, outdoor use, high dynamics and hard-to-access installation positions
Selection logic
A qualified inquiry usually needs a few hard parameters: force, stroke, speed, duty cycle, installation position, environment, voltage, control and an existing drawing.
| Load case | Series | Design principle |
|---|---|---|
| Plenty of axial space | A | Direct motor arrangement, clear force line and high force density. |
| Short installed length | S | Parallel or angular drive arrangement when machine space is limited. |
| Rough, dynamic, hard to access | X | Closed design with belt or chain drive. |
FAQ
Both terms describe the same electromechanical linear drive: a motor drives a lifting motion via a screw. "Electric cylinder" is the common short form; S+R technically speaks of electric linear actuators – the drive principle is the same.
The standard sizes cover up to around 80 kN; project-specific heavy-duty solutions reach up to around 500 kN. Strokes up to 3,000 mm and speeds up to 1,000 mm/s are possible – the actual values follow from the design for the specific load case.
No. A, S and X are proven design principles, not a rigid sales programme. Motor, screw, sensors, protection class, mounting and control are engineered per application – the result is a custom electric linear actuator.
S+R builds control-open: the mechanics run in the customer’s control system, and motor and control platform remain free to choose. The interface is clearly defined, so the actuators integrate into existing control environments.
A few hard parameters are usually enough: force, stroke, speed, duty cycle, installation position, environment, voltage and the existing control system. Missing details are no obstacle – S+R clarifies them in the engineering discussion.