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.

Heavy-duty actuator for a lock system after 20 years in service
Hydraulic steel structures
lock systemUse
20 yearsOperating time
inspection & repairService
extending service lifeFocus

Initial situation

Why a catalogue-only answer would not have been enough.

For infrastructure actuators, responsibility does not end with delivery. After many years in operation, know-how, drawings, calculations, spare-part assignment and inspection capability still have to exist so service or service-life extension can be assessed reliably.

01

Technical route

S+R could assess the actuator as its own documented assembly, inspect wear and interfaces, and derive the next service or adaptation steps from the original engineering basis.

02

Result

The return shows the value of retained product knowledge: even after two decades, the assembly remains repairable, serviceable, adaptable and technically traceable for extended use.

Project route

Traceable from tender to service.

For infrastructure and custom projects, the technical decision is only robust when calculation, interface, testing and service can still be understood later.

01

Engineering

Force, stroke, environment, mounting and safety reserves were documented so the actuator remains technically traceable even after many years.

02

Documentation

Drawings, calculations, interfaces and test records keep the know-how in-house and prevent the assembly from becoming an unknown spare part.

03

Return & inspection

After roughly 20 years in operation, S+R could inspect, assess and classify the actuator using its own documentation and manufacturing experience.

04

Service

Repair, replacement of wear parts, adaptations and service-life extension remain possible because development, manufacturing and service are connected.

Project images

Details from sizing, manufacturing, application and service.

Heavy-duty actuator from a lock system back in the S+R workshop
Back in the workshop: a heavy-duty actuator after long-term infrastructure service.
Drive unit of a heavy electric actuator during technical inspection
Drive, sensors and interfaces are assessed directly on the assembly.
S+R team member inspecting the drive unit of a heavy-duty actuator
Assessment and service build on product knowledge from engineering and manufacturing.
Detailed inspection on a heavy electric actuator in the workshop
Even after many operating years, the technical structure remains traceable.

Building blocks in the project

Proven principles, adapted to load case and interface.

The product ranges remain technical starting points. What matters is how spindle, motor, protection class, sensors, mounting and service access work together in the actual project.

Next step

Your project can often be assessed with a few technical details.

Helpful inputs include force, stroke, speed, installation space, environment, voltage, control, quantity and existing drawings or photos of the interface.