The longest stroke (800 mm) and the highest force (400 N): it solves the problems to operate very heavy vents and the necessity of wide opening without taking up space inside the room (800 mm only for bottom hinged windows).

Double link chain. Red led light placed on the actuator to signal the close position.

Minimum window height: 900 mm for 450 mm stroke, 1200 mm for 600 mm stroke, 1600 mm for 800 mm stroke.

For windows without windowsill a fixing bracket (sliding within the dovetail slide) is available for an easy installation.

Supplied with 2 m cable (450-600 mm), 3 m cable (800 mm).