The Fortress heavy duty range provides a whole variety of robust actuators with a retention force of 10,000N.


Our heavy duty actuators have market-leading misalignment capabilities, accounting for the fact that machine guarding installations often have a degree of variability and that guards move over time during use.


Third-party certified for use in up to PLe/Cat. 4 or SIL3.



Heavy Duty Actuator Options



EN (No Internal Handle)   |   EF (Internal Handle no Escape Release)   |   EI (Handle with Escape Release)   |   EJ (Escape Release Handle with Internal Close)




HL (Hinged Handle Long Reach)   |   HS (Hinged Handle Short Reach)   |   TN (Slide bar)   |   TI (Slide bar with latching Internal handle)   |   TA   (Fixed Tongue)

TS – TN with a sprung return   |   TF – TI with non-latching internal handle

Single Action Escape Release (EI)


The single-action escape release handle is designed to provide instant means to escape a hazard with an integrated reactive inhibit function. The EI handle is typically used on heavy duty machine guarding applications where whole body access is performed and protection is required in the event operators are trapped inside the safeguarded space.

The ergonomic design of the handle allows for ease of operation, whilst providing industry leading protection against unsafe access.


Integrated Hinged Handle


The integrated hinged handle offers an ergonomic solution to open a hinged guard from outside a safeguarded space. The high misalignment tongue offers easy adjustability to guarding as it deforms or moves during it’s lifecycle.




Fixed Tongue Actuator


The fixed tongue actuator is designed for use with hinged or sliding guards and is ideal for dusty environments. All tongue actuators are designed with a slotted space in their center for application of lock-out padlocks which prevent the actuator being inserted into the compatible interlock.


Slide Bar Operated Tongue Actuator


Slide bars can be used with sliding or hinged guards. On hinged guards, no radius limit is present and the risk to interlocks on heavy duty guards is removed.

The heavy duty actuator is the perfect solution for applications where robustness is paramount.


Rotary Insertion Handle


The handle can be rotated in 45° increments to provide a comfortable operable grip and rotated 180° for on site handing changes. The sprung return on the handle clears the actuator away from the interlock when a guard is opened, and allows for guard misalignment.

View our heavy duty actuators out in the field




Rotary Insertion Handle


Fixed Tongue Actuator


Escape Release Ergonomic Handle


Heavy Duty Tongue Slide-bar